# Updates & Changes

Here is an overview of all updates and changes to our software packages. Please subscribe to our newsletter if you would like to be notified automatically about changes and bug fixes.

To the current installation routines

Software | Version | ||
---|---|---|---|

GGU-RETAIN | 12.06 | - Simplified verification of the lock setting according to EAU 2020
- Bugfix: Resulting design value from action boundaries (variable)
| 27.09.2024 |

GGU-RETAIN | 12.05 | - Term 'Seismic effects according to EAU 1990' replaced by 'Seismic effects according to EAU'
- Seismic effects: Wall friction angle is not automatically set to '0'.
| 25.07.2024 |

GGU-RETAIN | 12.04 | - Bugfix: Vertical capacity bedded system and Method 1
| 29.05.2024 |

GGU-RETAIN | 12.03 | - Subgrade reaction modulus via constrained modulus implemented
| 12.04.2024 |

GGU-RETAIN | 12.02 | - Common system "Trench shoring" added.
| 28.02.2024 |

GGU-RETAIN | 11.33 | - Product management
| 28.02.2024 |

GGU-RETAIN | 12.01 | - Verification of anchoring base: Earth resistance now with its own adjustment factor
| 28.02.2024 |

GGU-RETAIN | 12.00 | - Common systems implemented
- GGU-CONNECT ready
- Consider buoyancy of retaining wall
Info: Paid major update (free of charge for licensees with subscription or update insurance under the software service agreement) | 02.02.2024 |

GGU-RETAIN | 11.32 | - Bugfix Seismic effects: Hydrodynamic pressure on the outer wall surface
| 22.11.2023 |

GGU-RETAIN | 11.31 | - Bugfix Seismic effects: Hydrodynamic pressure on the outer wall surface
| 16.11.2023 |

GGU-RETAIN | 11.30 | - Bugfix: Soil types (seismic effects) on the active side in output table
| 14.11.2023 |

GGU-RETAIN | 11.29 / 10.68 | - Bugfix: Infill analysis without concrete qualities for bored soldier pile wall
| 02.11.2023 |

GGU-RETAIN | 11.28 | - Bugfix: Inserted beams infill loading
| 17.10.2023 |

GGU-RETAIN | 11.27 | - Bugfix: Diaphragm wall shear reinforcement now with correct unit ("cm^2/m/m")
| 26.09.2023 |

GGU-RETAIN | 11.26 | - Reinforced concrete design: Number of points with "No reinforcement found" are displayed.
| 14.09.2023 |

GGU-RETAIN | 11.25 | - Program maintenance
| 30.08.2023 |

GGU-RETAIN | 11.24 | For new table values skin friction interpolation for qc < 7.5 MN/m^2 or cu,k < 60 kN/m^2 implemented.
| 01.08.2023 |

GGU-RETAIN | 11.23 | - Simplified analysis for several sections now with max w,d of the respective section.
- Program maintenance
| 12.07.2023 |

GGU-RETAIN | 11.22 | - Bugfix: Simplified analysis in accordance with EAU 2020 for sheet pile walls.
| 05.05.2023 |

GGU-RETAIN | 11.21 / 10.67 | - Bugfix: Soldier pile wall subgrade switch "continuous wall" deactivated.
| 22.03.2023 |

GGU-RETAIN | 11.20 | - Design situation 'DS-E' according to current standard now 'DS-A/DS-E'
- Design situation 'DS-E(old)' added.
- Bugfix: Vertical capacity I beam sections eta(b)
| 15.03.2023 |

GGU-RETAIN | 10.66 | - Bugfix: Vertical capacity I beam sections eta(b)
| 15.03.2023 |

GGU-RETAIN | 11.19 / 10.65 | - Bugfix: Increased active earth pressure and equivalent earth pressure coefficient and very high cohesion values.
| 23.02.2023 |

GGU-RETAIN | 10.64 | - Bugfix: Vertical capacity of sheet pile walls and check box "EAB 2021" activated. End resistance is no longer doubled.
- Bugfix: Increased active earth pressure and equivalent earth pressure coefficient and very high cohesion values.
| 24.01.2023 |

GGU-RETAIN | 11.18 | - Bugfix: Vertical capacity of sheet pile walls and check box "EAB 2021" activated. End resistance is no longer doubled.
- Bugfix: Increased active earth pressure and equivalent earth pressure coefficient and very high cohesion values.
| 23.01.2023 |

GGU-RETAIN | 10.63 | - Product management (Check box "Mouse wheel operation with global coordinates" in "Graphics preferences/Zoom info" menu item)
| 11.01.2023 |

GGU-RETAIN | 11.17 | - Partial safety factors gam,phi according to DIN EN 1998-5 introduced. This concerns the calculation of the earth pressure coefficients according to Mononobe and Okabe.
| 15.12.2022 |

GGU-RETAIN | 11.16 | - Verification of welding lengths for U sections of sheet pile walls
| 06.12.2022 |

GGU-RETAIN | 11.15 | - Verification of grouting points for U-shaped sheet piles (EAU 8.1.2.6.3)
| 08.11.2022 |

GGU-RETAIN | 11.14 | - Visualisation of construction phases optimised.
- Product management
| 27.10.2022 |

GGU-RETAIN | 11.13 | - Yield stress fy,k can be freely defined.
| 10.10.2022 |

GGU-RETAIN | 11.12 | - Maximum inclination of anchors and struts increased to 89°.
- Product management
| 29.08.2022 |

GGU-RETAIN | 11.11. / 10.62 | - Mouse wheel operation now according to Windows conventions
- Product management
| 18.07.2022 |

GGU-RETAIN | 11.10 / 10.61 | - Bugfix: Design force for struts with deviating partial safety factor for water pressure.
| 31.05.2022 |

GGU-RETAIN | 11.09 | - Bugfix: p-y method: Soil properties legend visualisation
| 24.05.2022 |

GGU-RETAIN | 11.08 / 10.60 | - Bugfix: Soldier pile wall and 'Subgrade on continuous wall' check box deactivated.
| 16.05.2022 |

GGU-RETAIN | 11.07 / 10.59 | - Bugfix: Possible error for sheet pile wall with multiple profiles removed. Occurs when equation 5.22 EC 3 is governing.
| 05.05.2022 |

GGU-RETAIN | 11.06 | - Product management
| 14.04.2022 |

GGU-RETAIN | 11.05 | - Explanation on partial safety of grouted tension pile systems (DIN 14199 or DIN 12699) added.
| 31.03.2022 |

GGU-RETAIN | 11.04 | - Mini-CAD: Selection layer definition improved.
- Print output: 'Print page 1 only' check box added.
| 30.03.2022 |

GGU-RETAIN | 11.03 | Product management | 17.03.2022 |

GGU-RETAIN | 11.02 | - Product management
| 09.03.2022 |

GGU-RETAIN | 11.01 / 10.58 | - Bugfix: Analysis of mobilised passive earth pressure and defined anchor spacing, if anchors or struts are present.
| 24.02.2022 |

GGU-RETAIN | 11.00 | - Seismic effects completely revised.
- p-y-method for soldier pile walls and bored soldier pile walls implemented.
- R 102: Passive earth pressure adjustment can be restricted to toe support analysis.
Info: Paid major update (free of charge for licensees with subscription or update insurance under the software service agreement) | 17.01.2022 |

GGU-RETAIN | 10.57 | - Product management
| 13.01.2022 |

GGU-RETAIN | 10.56 | - Bugfix: EB 102 comparision now performed with characteristic passive earth pressure. Previous results are more conservative.
| 15.12.2021 |

GGU-RETAIN | 10.55 | Program maintenance
| 22.11.2021 |

GGU-RETAIN | 10.54 | - Bugfix: Anchor forces Nw,k in output table for prestressing
- Bugfix: Subgrade reaction approach for soldier pile walls and free interlock piling
| 12.11.2021 |

GGU-RETAIN | 10.53 / 9.55 | - Bugfix: Self-weight of pile for non-secant bored pile wall
| 28.10.2021 |

GGU-RETAIN | 10.52 | - Product management
| 05.10.2021 |

GGU-RETAIN | 10.51 | - Product management
| 21.09.2021 |

GGU-RETAIN | 10.50 / 9.54 | - Bugfix: Young's modulus of inserted beams
| 15.09.2021 |

GGU-RETAIN | 10.49 / 9.53 | - Bugfix: Active earth pressure factor <> 1.0 and changeable loads and "Do not redistribute live loads" check box activated.
| 07.09.2021 |

GGU-RETAIN | 10.48 | - Bugfix: Analysis of concrete vault for bored pile walls with inserted beams.
| 11.08.2021 |

GGU-RETAIN | 10.47 | - Vertical capacity and skin friction doubled for excavated wall only.
- Bugfix: Vertical capacity compliant with EAB 2021 and Method 2
| 05.08.2021 |

GGU-RETAIN | 10.46 | - Bugfix: Vertical capacity to EAB 2021 and own empirical data
| 28.07.2021 |

GGU-RETAIN | 10.45 / 9.92 | - Bugfix: Anchor design and activated check box "Always design anchors for DS-P"
| 27.07.2021 |

GGU-RETAIN | 10.44 / 9.51 | - Vertical capacity to EAB 2021 implemented.
- Bugfix: Anchor force from water pressure for anchors with pretensioning
| 15.07.2021 |

GGU-RETAIN | 10.43 | - Product management
| 06.07.2021 |

GGU-RETAIN | 10.42 | - Warning in output table on stability of berms.
- Additional loads for non-secant pile walls with inserted beams
- Bugfix: Simplified analysis in accordance with EAU 2020 gam,M0 replaced by gam,M1
| 16.06.2021 |

GGU-RETAIN | 10.41 | - Minimum earth pressure and distributed load implemented compliant with EAB 2021 EB 6.
- Combined sheet pile wall: Simplified analysis compliant with EAU 2020 Section 8.2.7 implemented.
| 08.06.2021 |

GGU-RETAIN | 10.40 | - Bugfix: Labelling anchor with N,w,k
| 08.06.2021 |

GGU-RETAIN | 10.39 / 9.50 | - Bugfix: Seismic effects to EAU 1990 (caused by DIN 4085)
Old results are more conservative.
| 25.05.2021 |

GGU-RETAIN | 10.38 / 9.49 | - Bugfix: Passive earth pressure after Culmann and passive berms with surcharge.
- Bugfix: Determination of state variables for load case g,d in steel section design.
| 07.05.2021 |

GGU-RETAIN | 10.37 | - Waling: Waling data set can be generated from soldier pile section list.
| 22.04.2021 |

GGU-RETAIN | 10.36 | - Vertical capacity: Reduction of qb,k due to embedment depth (EAB 85) can be deselected.
| 20.04.2021 |

GGU-RETAIN | 10.35 | - Bugfix: Combined sheet pile walls (I beam sections) can be designed without buckling analysis again.
| 25.02.2021 |

GGU-RETAIN | 10.34 | - Export to GGU-STABILITY improved.
| 04.01.2021 |

GGU-RETAIN | 10.33 | - Possible inaccuracy for passive earth pressure after Culmann corrected.
| 17.12.2020 |

GGU-RETAIN | 10.32 | - Earth pressure after Culmann now also with seismic effects
| 03.12.2020 |

GGU-RETAIN | 10.31 | - Loads with limited plan dimensions expanded by the average from the sheet pile wall manual 1977 and DIN 4085.
- Graphic output table: saving and loading of all settings.
| 25.11.2020 |

GGU-RETAIN | 10.30 | - Product management
| 28.10.2020 |

GGU-RETAIN | 10.29 / 9.48 | - Bugfix: Protocol printout vertical load capacity with own values
- Bugfix: CMG-wall compression vault: Calculation max eah(d) under excavation base.
| 23.10.2020 |

GGU-RETAIN | 10.28 2020.12 / 9.47 2020.2 | - Bugfix: PSP profiles for combined sheet piling. The included PSP profiles were provided by the Hoesch company for about 10 years. The tables handed over are faulty in some areas. The PSP profiles were therefore removed from the GGU-RETAIN.kom_ggu file. Details can be provided on request.
| 09.10.2020 |

GGU-RETAIN | 10.28 | - Bugfix: Vertical capacity with user-defined data and "Calculate qbk by averaging qc or cuk" check box deactivated.
| 20.07.2020 |

GGU-RETAIN | 10.27 | - Bugfix: Normal force printout for anchors and struts resulting from water pressure for systems with predeformation.
| 15.05.2020 |

GGU-RETAIN | 10.26 | - Loads with limited plan dimensions revised and supplemented by the DIN 4085 approach.
| 14.05.2020 |

GGU-RETAIN | 9.47 | - Bugfix: Deep-seated stability and surcharge earth pressures
| 07.05.2020 |

GGU-RETAIN | 10.25 | - Bugfix: Deep-seated stability and surcharge earth pressures
| 05.05.2020 |

GGU-RETAIN | 10.24 | - Bugfix: Buckling analysis of tubes to EN 1993-1-6 Equation D.15 (minor influence)
| 14.04.2020 |

GGU-RETAIN | 10.23 | - Buckling analysis to DIN EN 1993-1-6 for pipes implemented.
- Graphical visualisation of action boundaries improved.
| 07.04.2020 |

GGU-RETAIN | 10.22 | - Vertical capacity: The end resistance qb,k can now also be averaged directly using the corresponding table values without averaging qc or cu,k. This is advantageous if there are cohesionless and cohesive soils in the wall base zone of influence.
| 11.03.2020 |

GGU-RETAIN | 10.21 | - Reduction of cohesion (R 14) can be turned off for analysis of Sum H.
| 28.02.2020 |

GGU-RETAIN | 10.20 | - Construction phases now with envelope for reinforcement.
| 17.02.2020 |

GGU-RETAIN | 10.19 | - Bugfix: Vertical capacity for bedded systems and Method 1
- 2019 EAU annual report implemented.
| 06.02.2020 |

GGU-RETAIN | 10.18 | - Reduction of cohesion compliant with R 14 now also for analysis of Sum H, heave FOS, export to GGU Stability and length surcharge
- Optimisation of the analysis of vertical capacity compliant with procedure 2
| 29.01.2020 |

GGU-RETAIN | 10.17 | - Productmanagement
| 10.12.2019 |

GGU-RETAIN | 10.16 | - Bugfix: Possible construction phases loading error rectified.
| 18.11.2019 |

GGU-RETAIN | 10.15 | - Bugfix: Self-weight Inserted beam
| 12.11.2019 |

GGU-RETAIN | 10.14 | - Product management
| 11.10.2019 |

GGU-RETAIN | 10.13 / 9.46 | - Bugfix: Soldier pile wall and baseplate: No reduction to Piling Recommendations (EA-Pfähle)
| 18.07.2019 |

GGU-RETAIN | 10.12 | - Bugfix: Imprecision with double-bounded surcharges on the passive side eradicated.
| 16.07.2019 |

GGU-RETAIN | 10.11 | - Product management
| 25.06.2019 |

GGU-RETAIN | 10.10 | - Product management
| 17.06.2019 |

GGU-RETAIN | 10.09 | - Construction phases: Reduced moments compliant with EAU 2012 8.2.1.2 can be visualised. Menu item "System/Graphics output preferences".
| 05.06.2019 |

GGU-RETAIN | 10.08 | - Product management
| 15.05.2019 |

GGU-RETAIN | 10.07 | - Bugfix: Reduction compliant with R 85 Para. 7 is no longer adopted for skin friction.
| 10.05.2019 |

GGU-RETAIN | 10.06 | - Product management
| 25.04.2019 |

GGU-RETAIN | 10.05 | - Bugfix: Warning passive earth pressure calibration factor for at-rest pressure
| 16.04.2019 |

GGU-RETAIN | 10.04 | - Bugfix: Soldier pile wall with tubes: Soldier pile spacing is no longer set to 1.0.
| 04.03.2019 |

GGU-RETAIN | 10.03 | - Soldier pile wall now also with tubular sections.
| 01.03.2019 |

GGU-RETAIN | 10.02 | - Water pressure hatching spacing can be defined.
| 22.02.2019 |

GGU-RETAIN | 10.01 | - Earth pressure and state variable hatching spacing can be defined.
| 19.02.2019 |

GGU-RETAIN | 10.00 | - PDF import implemented.
- Mini-CAD: Layer designations can be defined.
- Expandable database with soil properties for common soils.
- Screen visualisation accelerated.
Info: Paid major update (free of charge for licensees with subscription or update insurance under the software service agreement) | 13.02.2019 |

GGU-RETAIN | 9.45 / 8.71 | - Bugfix: Combined sheet pile walls and soldier pile walls with several sections, if reduced fyk is required.
| 17.12.2018 |

GGU-RETAIN | 8.70 | - Bugfix: Potentials log output
- Bugfix: Soldier pile walls and contiguous walls: Three-dimensional effect of passive ep
| 04.12.2018 |

GGU-RETAIN | 9.44 | - Warning calibration factor EAB R 23 <> 0
- Deep-seated stability: Reduction to EAB R 44.
| 29.11.2018 |

GGU-RETAIN | 9.43 | - Bugfix: Analysis of vertical capacity for bored pile wall
| 26.11.2018 |

GGU-RETAIN | 9.42 | - Skin friction interpolation, if qc < 7.5 MN/m² or c,uk < 60 kN/m²
| 08.11.2018 |

GGU-RETAIN | 9.41 | - Bugfix: Equation for toe potential to EAU 1990 R 115 replaced by equation in EAU 2004 R 115. EAU 1990 was more conservative.
| 17.10.2018 |

GGU-RETAIN | 9.40 | - Bugfix: Anchor with prestressing N,w,k in output table
- 9.39: Product management
| 12.09.2018 |

GGU-RETAIN | 9.38 | - baseplate now as square slab
| 05.07.2018 |

GGU-RETAIN | 9.37 | - Product management
| 07.06.2018 |

GGU-RETAIN | 9.36 | - product management
| 08.05.2018 |

GGU-RETAIN | 9.35 | - Bugfix: Soldier pile walls and contiguous walls: Three-dimensional effect of passive ep
- product management
- Colour selection on passive side for different soils on the passive and active side optimised.
| 13.03.2018 |

GGU-RETAIN | 9.34 | - Bugfix: Potentials log output
- Inserted beams for contiguous walls, diaphragm walls and bored pile walls implemented.
| 06.03.2018 |

GGU-RETAIN | 9.32 | - Reduction of cohesion on soldier pile walls by "0.5" compliant with R 14 now possible using a factor.
| 28.02.2018 |

GGU-RETAIN | 9.33 | - Analysis of vertical capacity of soldier pile wall now with baseplate.
- Background colour for legends implemented
| 28.02.2018 |

GGU-RETAIN | 9.31 / 8.69 | - Bugfix: Bending stiffness of soldier pile wall and contiguous pile wall for bedded system and 'Subgrade on continuous wall' check box deactivated.
| 21.12.2017 |

GGU-RETAIN | 9.30 | - Always design anchors for DS-P. Surcharge now also for grout body design.
| 13.12.2017 |

GGU-RETAIN | 9.29.25 | - Reinforced concrete: Adopted BSt 550 rebar steel compliant with ÖNORM.
- Bugfix: Constrained slip surfaces and area surcharges.
| 11.12.2017 |

GGU-RETAIN | 9.27 | - Investigation of constrained slip surfaces compliant with DIN 4085 via Culmann implemented.
| 05.12.2017 |

GGU-RETAIN | 9.26 | - Bugfix: Analysis of vertical capacity after method 1: EAU Figure E 4-3 (left)
| 01.12.2017 |

GGU-RETAIN | 9.25 | - New profildata Arcelor
| 28.11.2017 |

GGU-RETAIN | 9.24 | - Update show slip surface angle
- shear design EC 3 optimised
| 07.11.2017 |

GGU-RETAIN | 9.23 | - Show slip surface angle
| 07.11.2017 |

GGU-RETAIN | 9.22 | - Bugfix: "Always design anchors for DS-P". Increase now performed for anchor steel design only.
| 27.10.2017 |

GGU-RETAIN | 9.21 | - Bugfix: Analysis of mobilised passive earth pressure: Units now kN/m
- Renaming of passive earth pressure 'DIN 4085:1987' to 'DIN 4085:2011 planar slip surfaces'. Now also as default specification.
| 25.09.2017 |

GGU-RETAIN | 9.20 | - product management
| 14.07.2017 |

GGU-RETAIN | 9.19 | - Bugfix Corrosion: Possible error for flange thickness eradicated.
| 10.07.2017 |

GGU-RETAIN | 9.18 | - Analysis of concrete infill and unreinforced piles now also with concrete qualities.
| 04.07.2017 |

GGU-RETAIN | 9.17 | - Output table improved for user-defined section data.
| 27.06.2017 |

GGU-RETAIN | 9.16 | - Bored pile wall analysis completely revised.
- 'Simulate corrosion' and 'Weld plates' considerably improved.
- Bugfix: Negative wall inclination and steep active berms.
| 20.06.2017 |

GGU-RETAIN | 9.14 | - Bored pile wall: 'Unreinforced pile normal forces via qb,k+qs,k' check box implemented
| 30.05.2017 |

GGU-RETAIN | 9.13 | - Bugfix: Sheet pile wall: Weld plates
- Warning passive earth pressure calibration factor incorporated in active earth pressure (R 22)
- Sheet pile wall: Weld plates inside
- "Always design anchors for DS-P" check box activated: "Deep-seated stability analysis"
- Culmann: "Eph increasing non-monotone" revised
| 18.05.2017 |

GGU-RETAIN | 9.12 / 8.67 | - Bugfix: Displacements output table.
- Bugfix: Vertical capacity of sheet pile wall.
| 30.04.2017 |

GGU-RETAIN | 9.11 / 8.66 | - Bugfix: Visualisation of differential water pressure beneath excavation base for soldier pile wall and contiguous wall and 'Classical water pressure approach' if groundwater levels are different. Different groundwater levels are not normally possible.
| 25.04.2017 |

GGU-RETAIN | 9.10 / 8.65 | - Bugfix: Corrosion of II and ][ sections and combined sheet pile walls.
| 18.04.2017 |

GGU-RETAIN | 9.09 | - Bugfix: Differentiate Culmann and active and passive soil properties
| 10.04.2017 |

GGU-RETAIN | 9.09 | - product management
| 04.04.2017 |

GGU-RETAIN | 9.07 | - Bugfix Culmann: Active earth pressure and passive earth pressure and berms and several layers in the berm area.
| 13.03.2017 |

GGU-RETAIN | 9.06 / 8.64 | - Bugfix EC 2: Shear reinforcement circle for cross sections with nominal reinforcement
- Bugfix Culmann passive side: groundwater level ground side > excavation base
| 07.03.2017 |

GGU-RETAIN | 9.06 | - 'Weld on plates' implemented.
- R 102: Output table improved.
- Culmann passive side: Now also with angle of inclination of passive earth pressure wedge up to -45°. Important in downward sloping passive berms.
- Vertical capacity Procedure 1 in bedded systems.
- 3 new Arcelor sections: GU 10N, GU 11N and GU 12N
- EC2 analysis with individual sections improved.
| 07.03.2017 |

GGU-RETAIN | 9.05 / 8.63 | - bugfix: EB 102: section length automatic
| 23.11.2016 |

GGU-RETAIN | 9.05 | - EB102: output table improved
- Buoyancy + Hydraulic heave: output improved
| 22.11.2016 |

GGU-RETAIN | 9.03 / 8.62 | - Bugfix: Factor for active earth pressure <> 1.0 and sum V analysis
| 08.11.2016 |

GGU-RETAIN | 9.02 / 8.61 | - Bugfix EC2: No shear force reduction after Weißenbach in bedded systems.
| 17.10.2016 |

GGU-RETAIN | 9.01 / 8.60 | - product management
| 11.10.2016 |

GGU-RETAIN | 9.00 | - Earth pressure calculation after Culmann implemented.
| 19.09.2016 |

GGU-RETAIN | 8.58 | - product management
| 16.08.2016 |

GGU-RETAIN | 8.56 | - Bugfix: EB 102: Calculation of Bh,k and Bh,d
| 27.06.2016 |

GGU-RETAIN | 8.55 | - Bugfix: Three-dimensional effect of passive ep to DIN 4085 and downward sloping passive berms
| 16.06.2016 |

GGU-RETAIN | 8.53 | - Bugfix: design unreinforced piles
| 31.05.2016 |

GGU-RETAIN | 7.108 | - product management
| 25.05.2016 |

GGU-RETAIN | 8.52 / 7.107 | - Bugfix: Bored pile shear design for small moment.
| 24.05.2016 |

GGU-RETAIN | 8.51 | - Deep-seated stability analysis: Intersection with wall can be entered.
| 11.05.2016 |

GGU-RETAIN | 8.51 / 7.106 | - Bugfix: Bored pile shear design
| 10.05.2016 |

GGU-RETAIN | 8.50 | - 'Differentiate active + passive soil properties'. Variable soil colouring on active and passive side is now possible.
| 03.05.2016 |

GGU-RETAIN | 8.49 | - Export function to GGU-STABILITY improved.
| 30.03.2016 |

GGU-RETAIN | 8.48 / 7.105 | - Bugfix: Strut force as a result of water pressure for predeformations or displacement boundary conditions <> 0.0.
| 18.03.2016 |

GGU-RETAIN | 8.48 | - 'Use anchor-strut spacing' implemented.
| 18.03.2016 |

GGU-RETAIN | 8.46 / 7.104 | - Bugfix: Bounded surcharges (active side) with negative surcharge load
- Bugfix: Double-bounded surcharges (also see current manual)
| 24.02.2016 |

GGU-RETAIN | 8.46 | - EC 2 concrete design: Shear stress: VRd,c is calculated and output.
- Heave FOS: Designations adapted to EC 7.
- Active berms and at-rest pressure: Berm gradient too steep warning
| 24.02.2016 |

GGU-RETAIN | 8.44 | - product management
| 09.02.2016 |

GGU-RETAIN | 7.103 | - Bugfix: Reinforced concrete design: d1 is now shown again.
| 04.02.2016 |

GGU-RETAIN | 8.43 / 7.102 | - Bugfix: Shear reinforcement for small moment and small normal force.
| 29.01.2016 |

GGU-RETAIN | 8.42 | - Analysis of vertical forces: A wall friction angle of '0' can be automatically adopted for at-rest earth pressure. This is appropriately reduced for increased earth pressure.
- Length surcharge via equation: The influence of active berms can be turned off.
| 12.01.2016 |

GGU-RETAIN | 8.41 /7.101 | - Bugfix: At-rest earth pressure and wall friction
| 09.12.2015 |

GGU-RETAIN | 8.41 | - New partial safety factors for Hydraulic heave to DIN 1054/A2:2015-11
| 07.12.2015 |

GGU-RETAIN | 8.40 / 7.100 | - Bugfix: Active berms and at-rest earth pressure
| 01.12.2015 |

GGU-RETAIN | 8.39 / 7.99 | - Vertical capacity in bedded systems and 'Method 1' (EAU) now with Bv,d
| 23.11.2015 |

GGU-RETAIN | 8.38 | - Bugfix: Vertical capacity and diaphragm wall
- New ThyssenKrupp sheet pile wall sections included in database.
- Distance between double U can be modified.
| 17.11.2015 |

GGU-RETAIN | 7.98 | - Bugfix: Vertical capacity and diaphragm wall
| 17.11.2015 |

GGU-RETAIN | 8.37 | - New Arcelor section data
| 21.10.2015 |

GGU-RETAIN | 8.36 | - Bugfix: Active berms and at-rest earth pressure
- Concrete design EC 2: Partial safety factors for concrete and steel can be altered.
| 02.10.2015 |

GGU-RETAIN | 7.97 | - Bugfix: Active berms and at-rest earth pressure
| 02.10.2015 |

GGU-RETAIN | 8.34 | - product management
| 14.08.2015 |

GGU-RETAIN | 8.33 / 7.96 | - Bugfix: Output table for EC 3 and user-defined section data
| 28.07.2015 |

GGU-RETAIN | 8.33 | - Reduction of design shear force by 50% after Weißenbach now performed or all depths below the lowest shear force transition point.
| 28.07.2015 |

GGU-RETAIN | 8.32 / 7.95 | - Bugfix: Heave of anchor soil and area loads
| 17.07.2015 |

GGU-RETAIN | 8.32 | - Always design anchors/struts using DS-P. With at-rest pressure or increased active earth pressure
| 17.07.2015 |

GGU-RETAIN | 8.31 | - Stability analysis criterion to EC 3 using either N,Ed/Ncr <= 0.04 or N,Ed/Ncr <= 0.10
| 03.06.2015 |

GGU-RETAIN | 8.30 | - Stability analysis to EC 3
- Improved shear force analysis to EC 2 for minimum bending reinforcement
| 22.05.2015 |

GGU-RETAIN | 8.29 / 7.94 | - Bugfix: EC3 buckling stress curves for sheet pile walls and combined sheet pile walls
- Bugfix: Inclined wall and passive earth pressure
| 07.05.2015 |

GGU-RETAIN | 8.28 / 7.93 | - Bugfix Analysis of vertical capacity: Fixed section length is larger than length for full fixity.
- Bugfix: Area loads with increased active earth pressure and active earth pressure for area loads and increased earth pressure or at-rest earth pressure for the remainder.
| 28.04.2015 |

GGU-RETAIN | 8.27 b | - 'Always design anchors/struts for DS-P' no longer for analysis of vertical capacity.
| 15.04.2015 |

GGU-RETAIN | 8.27 | - Bugfix: Anchor force from water pressure, if gamma(G) <> gamma(W)
- Design situation text
| 09.04.2015 |

GGU-RETAIN | 8.24 / 7.92 | - Bugfix: Sheet pile wall and user-defined section data: fy,red Cl. 4 -> Cl. 3
- Bugfix: Analysis of anchor soil with active berms
| 11.03.2015 |

GGU-RETAIN | 8.24 | - Analysis of anchor soil now also with passive earth pressure from area loads, permanent distributed loads, bounded and double-bounded surcharges.
| 11.03.2015 |

GGU-RETAIN | 8.23 | - Bugfix: Combined sheet pile wall with individual sections: fy,red (Class 4)
| 26.02.2015 |

GGU-RETAIN | 8.22 | - 3 additional redistribution figures for area loads
| 13.02.2015 |

GGU-RETAIN | 8.21 / 7.91 | - Bugfix: Determination of max. load on infill for soldier pile walls and subgrade on non-continuous wall.
| 10.02.2015 |

GGU-RETAIN | 8.20 / 7.90 | - Bugfix: Heave FOS to R 99 of EAB
| 06.02.2015 |

GGU-RETAIN | 8.19 / 7.89 | - Bugfix: Bedded soldier pile wall and subgrade on pile width
- Wall inclination can be taken into account.
- CMG wall: Analysis of vertical capacity now as for diaphragm wall
- Area load at-rest earth pressure: Now also with increase in active earth pressure by the factor k0/kah. For increased active earth pressure the increase is performed using: [(1
- f) · kah + f · k0]/kah.
- Three-dimensional effect of passive earth pressure now also to DIN 4085
| 12.01.2015 |

GGU-RETAIN | 8.18 | - EC3 and Soldier pile wall legend: Now with visualisation of soldier pile spacing again
| 17.12.2014 |

GGU-RETAIN | 8.17 | - product management
| 10.12.2014 |

GGU-RETAIN | 7.88 / 8.16 | - Bugfix: Analysis of deep-seated stability and active berms
- Bugfix: Increased earth pressure and calculation of design value of anchor forces
| 14.11.2014 |

GGU-RETAIN | 8.13 | - Reinforced concrete design to EC2 completely revised.
- Query for minimum longitudinal reinforcement can be turned off.
| 27.10.2014 |

GGU-RETAIN | 8.11 / 7.87 | - Bugfix: Reinforced concrete design to EC2
| 06.10.2014 |

GGU-RETAIN | 8.10 | - Bugfix: User-defined active earth pressure coefficients for at-rest earth pressure or increased active earth pressure or for subgrade and analysis compliant with R 102
| 02.10.2014 |

GGU-RETAIN | 7.85 / 8.09 | - Bugfix: Analysis of vertical capacity for driven girders nd extension below TF > 0.0
| 08.09.2014 |

GGU-RETAIN | 8.08 | - Sum V analysis improved.
| 25.08.2014 |

GGU-RETAIN | 7.84 / 8.07 | - Bugfix: Sheet pile wall design EC 3 (M,V,N interaction)
| 15.08.2014 |

GGU-RETAIN | 8.06 | - Shear force reduction to 50 % after Weißenbach now also for diaphragm wall and bored pile wall.
| 14.08.2014 |

GGU-RETAIN | 7.83 / 8.05 | - Product Management
| 19.06.2014 |

GGU-RETAIN | 7.82 | - Bugfix: Analysis of vertical capacity for soldier pile walls with concreted toe.
- Bugfix: Analysis of vertical capacity for soldier pile walls, contiguous walls and cast-in-place concrete walls if extended below TF > 0.0.
| 16.06.2014 |

GGU-RETAIN | 8.04 | - 2nd order theory: In the the parabolic predeformation region the value of the predeformation can now be doubled.
- Bugfix: Analysis of vertical capacity for soldier pile walls with concreted toe.
- Bugfix: Analysis of vertical capacity for soldier pile walls, contiguous walls and cast-in-place concrete walls if extended below TF > 0.0.
| 12.06.2014 |

GGU-RETAIN | 8.03 | - Compaction earth pressure implemented.
| 30.05.2014 |

GGU-RETAIN | 8.02 | - Bugfix: Length surcharge via equation and active berms
| 15.05.2014 |

GGU-RETAIN | 7.81 | - Bugfix: Length surcharge via equation and active berms
| 14.05.2014 |

GGU-RETAIN | 8.01 | - Bored pile wall: If the unreinforced piles can transfer their self weight via end resistance and skin friction, the self weight of the unreinforced piles can be ignored for the analysis.
| 14.05.2014 |

GGU-RETAIN | 7.80 | - Bugfix: 2nd order theory and DIN EN 1993-1-1: analysis now with gamma,M1.
| 07.05.2014 |

GGU-RETAIN | 8.00 | - new programm version
| 07.05.2014 |

GGU-RETAIN | 7.79 | - Bugfix: Combined sheet pile wall: determination of EI and EF
- Bugfix: User-defined section data (EC 3): soldier pile and Combined sheet pile wall: determination of EI and EF
| 25.04.2014 |

GGU-RETAIN | 7.78 | - Product Management
| 15.04.2014 |

GGU-RETAIN | 7.76 | - Deep-seated stability analysis now also with increased earth pressure/at-rest pressure
| 14.03.2014 |

GGU-RETAIN | 7.75 | - Bugfix: Blum's method: Fixed section length and minimum embedment depth to EAU activated.
| 19.02.2014 |

GGU-RETAIN | 7.74 | - Analysis with subgrade: Bh,d and Eph,d now also to the wall toe.
- Reinforcement distribution (bored pile wall and contiguous wall) can be given in output table.
- Reinforced concrete analysis now with design situations max M, max Q and max N.
- Analysis of sum H now optionally detailed in graphics.
- Bugfix: Soldier pile wall and contiguous wall with subgrade: Analysis of Bh,d and Eph,d: Eph,d is multiplied by the pile width.
| 06.02.2014 |

GGU-RETAIN | 7.73 | - Translation improved.
| 17.01.2014 |

GGU-RETAIN | 7.72 | - EC 3 for soldier pile walls and combined sheet pile walls Simplified buckling analysis can be turned off.
| 16.12.2013 |

GGU-RETAIN | 7.70 | - Bugfix: Output of strut forces resulting from water pressure.
- Bugfix: Vertikale Tragfähigkeit, "Verfahren 2 und Verlängerung unter TF > 0.0"
- Note for systems using struts below the excavation base and Blum's method.
- Opening from and saving to network storage media accelerated.
| 11.12.2013 |

GGU-RETAIN | 7.71 | - Bugfix: EC 3 for soldier pile walls and combined sheet pile walls Simplified buckling analysis now with moment loading.
| 11.12.2013 |

GGU-RETAIN | 7.68 | - Bugfix: Shear reinforcement to EC 2/DIN 1045-1
- Partial factors to ÖNORM EN 1997-1 implemented.
| 16.11.2013 |

GGU-RETAIN | 7.67 | - Bugfix: Buckling length analysis for combined sheet pile walls
| 04.11.2013 |

GGU-RETAIN | 7.66 | - Sheet pile walls, soldier pile walls and combined sheet pile walls now also work with user-defined section data.
| 16.10.2013 |

GGU-RETAIN | 7.65 | - Bugfix: Determination of anchor and strut design values with prestressing and check box 'Always design ... for DS-P' activated.
- Hoesch and Peiner Träger combined sheet pile walls added compliant with manufacturer's data.
| 23.09.2013 |

GGU-RETAIN | 7.64 | - Bugfix: Analysis of mob. Ep and vertical capacity for soldier pile walls and contiguous walls.
- Analysis method in accordance with EAU Figure R 4-3 (right) extended.
- Analysis of mob. Ep: Precise approach for soldier pile walls and contiguous walls implemented.
| 04.09.2013 |

GGU-RETAIN | 7.63 | - Analysis of vertical capacity now also possible with user-defined values.
| 28.08.2013 |

GGU-RETAIN | 7.62 | - Sheet pile wall design: Shear force reduction to 50% implemented.
- Analysis of vertical capacity of sheet pile wall: Analysis method in accordance with EAU Figure R 4-3 (right) implemented.
- Bugfix: EC 3: fyk,red for Cl. 4 ==> Cl. 3 for soldier piles and combined sheet pile walls.
| 12.08.2013 |

GGU-RETAIN | 7.61 | - Combined sheet pile wall: Buckling analysis can be deactivated.
- Soldier pile wall design: Reduction of shear force to 50%.
- Reduction of shear force to 50% can be deactivated.
- Bugfix: EC 3: numerical imprecision in analysis eradicated for fyk,red for Class 4 ==> Class 3 for soldier piles and combined sheet pile walls.
| 05.08.2013 |

GGU-RETAIN | 7.60 | - Combined sheet pile wall design: 'Shear force reduced to 50%' improved.
| 30.07.2013 |

GGU-RETAIN | 7.59 | - Bored pile wall internal forces output now also per pile
- Bugfix: Lateral pressures and old standard
| 22.07.2013 |

GGU-RETAIN | 7.58 | - Combined sheet pile wall design: shear force reduction to R 86.
- Bugfix: Output of potentials in the output table for absolute elevations.
| 19.06.2013 |

GGU-RETAIN | 7.57 | - Product management
- Design of combined sheet pile wall and soldier pile wall optimised.
| 13.06.2013 |

GGU-RETAIN | 7.55 | - Bugfix sheet pile wall: 2nd order theory and double sections and el.-pl. design
| 14.05.2013 |

GGU-RETAIN | 7.55 | - Unreinforced concrete (CMG wall): Maximum earth pressure can now also be determined to base of section.
| 13.05.2013 |

GGU-RETAIN | 7.54 | - General legend: File name is now shown again.
| 23.04.2013 |

GGU-RETAIN | 7.52 | - Bugfix: Incorrect earthquake message
- Bugfix: Soldier pile wall design to EC 3
| 25.03.2013 |

GGU-RETAIN | 7.52 b | - Soldier pile wall design to EC 3: No buckling analysis to EC 3, if analysis uses 2nd order theory.
- Combined sheet pile wall: Interlock section modulus and interlock yield point with subsequent design
| 25.03.2013 |

GGU-RETAIN | 7.53 | - Simplified shear crimping analysis via reduction in yield point
- Combined sheet pile wall: test phase ended.
| 25.03.2013 |

GGU-RETAIN | 7.51 | - Vertical capacity (sheet pile wall): Skin friction between TF and UK section taken into consideration.
| 25.02.2013 |

GGU-RETAIN | 7.51 b | - Bugfix: Vertical capacity: R,S2,d now design value
| 25.02.2013 |

GGU-RETAIN | 7.50 / 6.29 | - Bugfix: Soldier pile wall analysis to old standard
| 24.01.2013 |

GGU-RETAIN | 7.50 | - Vertical capacity to EAU 2012, EAB 2012 and EAP 2012 implemented.
- Combined sheet pile wall (test phase) implemented. Iteration of 'free earth support' optimised.
| 24.01.2013 |

GGU-RETAIN | 7.46 / 6.28 | - Bugfix for sheet pile walls to EC3: reduction of moment of inertia now using beta,D
| 11.01.2013 |

GGU-RETAIN | 7.46 | - Soldier pile wall and contiguous pile wall with subgrade:Subgrade was previously adopted for the continuous wall.The subgrade can now also be adopted for the girder width.
- State variables for soldier pile wall and contiguous pile wall now also in M [kN·m] and Q, N in [kN]
| 11.01.2013 |

GGU-RETAIN | 7.45 | - Bugfix: When designing sheet pile walls to EC 3 the moment of resistance is reduced in certain situations (e.g. single pile) using beta,B. This reduction is now also performed for the moment of inertia. This also affects the displacements.
| 20.12.2012 |

GGU-RETAIN | 7.44 / 6.27 | - Program update
| 17.12.2012 |

GGU-RETAIN | 7.44 | - Flow below base implemented.
| 17.12.2012 |

GGU-RETAIN | 7.43 | - Reinforcement distribution without minimum reinforcement
| 28.11.2012 |

GGU-RETAIN | 7.42 / 6.26 | - Bugfix: Earth pressure calculation with active berms and high groundwater table and downward sloping berms.
| 22.11.2012 |

GGU-RETAIN | 7.41 | - Steel design to EC 3-5:Search criterion: "Find smallest section area" implemented.
| 07.11.2012 |

GGU-RETAIN | 7.39 | - Seismic effects implemented to EC 8.
| 18.10.2012 |

GGU-RETAIN | 7.38 | - Bugfix: Corrosion of sheet pile walls
| 10.10.2012 |

GGU-RETAIN | 7.37 | - Reinforcement distribution (diaphragm wall) can be given in output table.
- Corrosion of sheet pile walls and soldier piles can now be simulated.
| 26.09.2012 |

GGU-RETAIN | 7.35 | - Export anchors as injection piles to GGU-STABILITY.
| 13.09.2012 |

GGU-RETAIN | 7.36 | - Anchors may always be designed for DS-P or LC 1.
| 13.09.2012 |

GGU-RETAIN | 7.34 | - Bugfix: EC 3, for number of anchors >= 3 and U sections
- Bugfix: EC 3, determination of max µ, if shear crimping analysis must be performed.
| 30.08.2012 |

GGU-RETAIN | 7.33 | - Bug fix: EC 3 buckling length analysis for free earth support or partial embedment
| 23.08.2012 |

GGU-RETAIN | 7.32 | - Program updated to EC 3
| 25.07.2012 |

GGU-RETAIN | 7.31 | - EC 3: Retaining wall legend substantially improved.
| 19.07.2012 |

GGU-RETAIN | 7.30 | - Steel design to EC 3 implemented.
| 18.07.2012 |

GGU-RETAIN | 7.17 / 6.25 | - Bugfix: Visualisation of water pressure as a result of lateral pressures.
| 16.07.2012 |

GGU-RETAIN | 7.20 | - Sheet pile wall design to EC 3-5 implemented.
- Bored pile wall: Unreinforced pile design implemented.
| 16.07.2012 |

GGU-RETAIN | 7.16 / 6.24 | - Bugfix: EP calculation with several active berms higher than top of wall.
| 08.06.2012 |

GGU-RETAIN | 7.15 | - Product management
| 24.04.2012 |

GGU-RETAIN | 7.14 / 6.23 | - Generate triangular load from stepped loads.
| 12.03.2012 |

GGU-RETAIN | 7.14 b / 6.23 b | - Bugfix: Earth pressure analysis with active berms and high groundwater table or strata of highly variable bearing capacity at the top of the wal
| 12.03.2012 |

GGU-RETAIN | 7.13 | - Bugfix: Earth pressure redistribution with traffic area live loads and cohesion and 'Do not redistribute live loads'
| 24.02.2012 |

GGU-RETAIN | 6.22 | - Bugfix: Earth pressure redistribution with traffic area live loads and cohesion and 'Do not redistribute live loads'
| 24.02.2012 |

GGU-RETAIN | 5.30 | - Bugfix: Earth pressure redistribution with traffic area live loads and cohesion and 'Do not redistribute live loads'
| 24.02.2012 |

GGU-RETAIN | 4.71 | 24.02.2012 | |

GGU-RETAIN | 7.12 | - Passive side distributed load now also in analysis of 'Sum H'
| 23.02.2012 |

GGU-RETAIN | 6.21 | - Passive side distributed load now also in analysis of 'Sum H'
| 23.02.2012 |

GGU-RETAIN | 5.29 | - Bugfix: Determination of design state variables for prestressed anchors.
| 01.02.2012 |

GGU-RETAIN | 6.20 | - Bugfix: Determination of design state variables for prestressed anchors.
| 01.02.2012 |

GGU-RETAIN | 7.11 | - Bugfix: Determination of design state variables for prestressed anchors.
| 01.02.2012 |

GGU-RETAIN | 7.11 | - Partial safety factors to Eurocode 7
| 16.01.2012 |

GGU-RETAIN | 7.10 | - CMG (cut-mix-grout) wall implemented.
| 15.12.2011 |

GGU-RETAIN | 6.18 | - Bugfix: Calculation of self-weight of bored pile wall
- Bugfix: Sheet pile wall design using user-defined section data and sigma = N/A + (w * N + M)/W. w is now characteristic.
| 04.11.2011 |

GGU-RETAIN | 5.28 | - Bugfix: Calculation of self-weight of bored pile wall
- Bugfix: Sheet pile wall design using user-defined section data and sigma = N/A + (w * N + M)/W. w is now characteristic.
| 04.11.2011 |

GGU-RETAIN | 4.70 | - Bugfix: Calculation of self-weight of bored pile wall
- Bugfix: Sheet pile wall design using user-defined section data and sigma = N/A + (w * N + M)/W. w is now characteristic.
| 04.11.2011 |

GGU-RETAIN | 3.31 | - Bugfix: Calculation of self-weight of bored pile wall
| 04.11.2011 |

GGU-RETAIN | 6.17 | - Bugfix: File name output with pre deformations if the name contains the character string '/2'.
| 12.10.2011 |

GGU-RETAIN | 6.16 | - Subsurface hydraulics printout improved.
- Sheet pile wall sections adapted to current terms of supply and delivery.
- Arcelor's sheet pile wall sections with large and small moments of inertia added.
| 27.07.2011 |

GGU-RETAIN | 6.14 | - Now possible to export area loads from horizontal loading to GGU-STABILITY (V 9.31) as horizontal line load.
| 27.06.2011 |

GGU-RETAIN | 6.13 | - Bugfix: Concrete shear design for minor bending
| 23.06.2011 |

GGU-RETAIN | 6.11 | - In accordance with EAB 4th edition, 3.4, Paragraph 4, the equivalent earth pressure coefficient can now be applied to permanent loads only.
| 08.04.2011 |

GGU-RETAIN | 6.10 | - Bugfix: Concrete infill designations
| 11.03.2011 |

GGU-RETAIN | 6.09 | - Reinforced concrete design for bored pile wall: Normal force can now also be determined with half the bored pile spacing.
| 03.03.2011 |

GGU-RETAIN | 6.07 | - Bugfix: Open/Save dialog box in Vista and Windows 7.
| 23.02.2011 |

GGU-RETAIN | 6.08 | - Bugfix: Sum V verification for inclined struts
- Bugfix: Waling verification for struts
| 21.02.2011 |

GGU-RETAIN | 5.27 | - Bugfix: Sum V verification for inclined struts
- Bugfix: Waling verification for struts
| 21.02.2011 |

GGU-RETAIN | 4.69 | - Bugfix: Sum V verification for inclined struts
- Bugfix: Waling verification for struts
| 21.02.2011 |

GGU-RETAIN | 6.06 | - Output table: If the stability of sheet pile walls, etc. under permanent loads cannot be demonstrated, the state variables for the g,d load case were given. Now the maximum values for the overall loads (d) are always given.
| 03.02.2011 |

GGU-RETAIN | 6.04 | - Sheet pile wall and soldier pile section list: Lists can now be appended and double sections can be deleted.
| 28.01.2011 |

GGU-RETAIN | 6.05 | - Bugfix: Sign of prestressed struts (Enter positive values for anchors and struts)
| 19.01.2011 |

GGU-RETAIN | 5.26 | - Bugfix: Sign of prestressed struts (Enter positive values for anchors and struts)
| 19.01.2011 |

GGU-RETAIN | 4.68 | - Bugfix: Sign of prestressed struts (Enter positive values for anchors and struts)
| 19.01.2011 |

GGU-RETAIN | 6.03 | - The absolute value is not longer adopted for detailed analysis of compression anchors and tension struts.
| 10.01.2011 |

GGU-RETAIN | 6.0 | - Lateral pressures for passive earth pressure implemented.
- Buckling analysis to DIN EN 1993-1-1 implemented
| 16.10.2010 |

GGU-RETAIN | 5.25 | - Bugfix: Analysis of Sum H and bedded system:Support Bh,d is determined from positive subgrade.
| 13.09.2010 |

GGU-RETAIN | 4.67 | - Bugfix Nachweis Summe H und Gebettetes System:Support Bh,d is determined from positive subgrade.
| 13.09.2010 |

GGU-RETAIN | 5.24 | - Section length and embedment depth in legend.
| 20.08.2010 |

GGU-RETAIN | 5.24 | - Bugfix new standard: Anchor force design value for prestressed anchors.
| 20.08.2010 |

GGU-RETAIN | 4.66 | - Bugfix new standard: Anchor force design value for prestressed anchors.
| 20.08.2010 |

GGU-RETAIN | 5.23 | - Anchor labelling improved.
| 09.07.2010 |

GGU-RETAIN | 4.65 | - Analysis of Sum H: Passive earth pressure can now be computed to EAB R 15 without calibration factor.
| 21.06.2010 |

GGU-RETAIN | 4.65 | - Bugfix: Analysis of Sum H and subgrade support for calibration factors for passive earth pressure <> 1.0.
| 16.06.2010 |

GGU-RETAIN | 5.21 | - Bugfix: Analysis of Sum H and subgrade support for calibration factors for passive earth pressure <> 1.0.
| 14.06.2010 |

GGU-RETAIN | 5.21 | - Analysis of Sum H: Passive earth pressure can now be computed to EAB R 15 without calibration factor.
| 14.06.2010 |

GGU-RETAIN | 5.20 | - Heave FOS verification for elevated area loads improved.
| 03.06.2010 |

GGU-RETAIN | 5.19 | - Bugfix for active and passive berms: numerical problems for differences in x values < 0.003 m rectified.
| 20.04.2010 |

GGU-RETAIN | 4.64 | - Bugfix for active and passive berms: numerical problems for differences in x values < 0.003 m rectified.
| 20.04.2010 |

GGU-RETAIN | 3.30 | - Bugfix for active and passive berms: numerical problems for differences in x values < 0.003 m rectified.
| 20.04.2010 |

GGU-RETAIN | 5.18 | - Verification of 'Sum V' if at-rest earth pressure for area loads is activated.
| 24.03.2010 |

GGU-RETAIN | 4.63 | - Verification of 'Sum V' if at-rest earth pressure for area loads is activated.
| 24.03.2010 |

GGU-RETAIN | 3.29 | - Verification of 'Sum V' if at-rest earth pressure for area loads is activated.
| 24.03.2010 |

GGU-RETAIN | 5.17 | - Soil designations can be displayed in the main graphics.Export function to GGU-STABILITY improved.
| 19.03.2010 |

GGU-RETAIN | 5.15 | - Mini-CAD Version 7.10
| 15.03.2010 |

GGU-RETAIN | 5.16 | - Mini-CAD Version 7.10
| 15.03.2010 |

GGU-RETAIN | 5.14 | - Undo function implemented.
| 27.01.2010 |

GGU-RETAIN | 4.61 | - Analysis of earth pressure for passive and active berms with highly variable unit weights in the berm region.
| 16.12.2009 |

GGU-RETAIN | 5.11 | - Analysis of earth pressure for passive and active berms with highly variable unit weights in the berm region.
| 16.12.2009 |

GGU-RETAIN | 5.11 | - New Features
| 16.12.2009 |

GGU-RETAIN | 4.62 | - Bugfixes
| 16.12.2009 |

GGU-RETAIN | 4.62 | - Bored pile shear reinforcement no longer on equal-area square.
| 16.12.2009 |

GGU-RETAIN | 5.12 | - Bugfixes
| 16.12.2009 |

GGU-RETAIN | 5.12 | - Bored pile shear reinforcement no longer on equal-area square.
| 16.12.2009 |

GGU-RETAIN | 5.09 | - Excavation can now also be displayed on the 'right'.
| 25.11.2009 |

GGU-RETAIN | 5.08 | - Bugfixes
| 23.10.2009 |

GGU-RETAIN | 4.60 | - Bugfixes
| 23.10.2009 |

GGU-RETAIN | 4.59 | - Deep-seated stability of soldier pile walls and free interlock piling
| 07.10.2009 |

GGU-RETAIN | 5.07 | - Deep-seated stability of soldier pile walls and free interlock piling
| 07.10.2009 |

GGU-RETAIN | 5.07 | - Modulus of subgrade reaction can now also be entered in MN/m³
| 07.10.2009 |

GGU-RETAIN | 5.05 | - Â‘Moment due to gamma(Ep,red) at full lengthÂ’ check box for high degree of fixity
| 15.07.2009 |

GGU-RETAIN | 5.04 | - Calculation of kpch to DIN 4085(new)
| 27.05.2009 |

GGU-RETAIN | 4.57 | - Calculation of kpch to DIN 4085(new)
| 27.05.2009 |

GGU-RETAIN | 5.03 | - Legend output corrected for free toe
| 03.03.2009 |

GGU-RETAIN | 4.56 | - Legend output corrected for free toe
| 03.03.2009 |

GGU-RETAIN | 5.02 | - Sum V verification
| 02.12.2008 |

GGU-RETAIN | 4.55 | - Sum V verification
| 02.12.2008 |

GGU-RETAIN | 5.01 | - New partial factor to DIN 1054 Corrigendum 4 (Oct 2008)
| 29.10.2008 |

GGU-RETAIN | 5.0 | - New Features and Bugfixes
| 23.09.2008 |

GGU-RETAIN | 4.54 | - Log output improved
| 04.09.2008 |

GGU-RETAIN | 4.53 | - new standard: Sum V analysis and 'Redistribute area loads' check box activated.
| 05.06.2008 |

GGU-RETAIN | 4.52 | - Verification of sum V
| 09.05.2008 |

GGU-RETAIN | 4.51b | - Verification of sum V: Upwardly acting components from traffic are taken into consideration.
| 18.04.2008 |

GGU-RETAIN | 4.51a | - New partial safety factors according to DIN 1054 Corrigenda 3 (Jan 2008)
| 18.04.2008 |

GGU-RETAIN | 4.50 | - Crack width verification bugfix: analysis of diaphragm wall reinforcement
| 20.11.2007 |

GGU-RETAIN | 3.28 / 4.47 a | - Double-bounded loads implemented.
| 24.09.2007 |

GGU-RETAIN | 3.28 / 4.47 b | - Crack width verification for rectangular sections to DIN 1045-1 implemented.
| 24.09.2007 |

GGU-RETAIN | 3.28 / 4.47 c | - Graphical table output with struts.
| 24.09.2007 |

GGU-RETAIN | 3.28 / 4.47 d | - "Deep-seated stability" if active berm present.
| 24.09.2007 |

GGU-RETAIN | 4.46 a | - Crack width verification for circular sections to DIN 1045-1 implemented.
| 13.07.2007 |

GGU-RETAIN | 4.46 b | - Pressure diagrams to EAB 2006 implemented.
| 13.07.2007 |

GGU-RETAIN | 4.45 a | - Displacements and state variables, etc. now with common designations (adjustable)
| 20.06.2007 |

GGU-RETAIN | 4.45 b | - Additional length via equation: kpch now no longer reduced by a factor of "2".
| 20.06.2007 |

GGU-RETAIN | 4.45 c | - Lateral pressures can now be displayed on an analysed system.
| 20.06.2007 |

GGU-RETAIN | 4.45 d | - permanent action BCs are now dealt with correctly in verification of Sum V.
| 20.06.2007 |

GGU-RETAIN | 4.45 e | - For fixed section length and minor layering below the wall toe the hydraulic heave safety is now calculated correctly.
| 20.06.2007 |

GGU-RETAIN | 4.44 a | - New standard: partial safety factors EQU: Corrigenda to DIN 1054:2005-01 implemented.
| 01.06.2007 |

GGU-RETAIN | 4.44 b | - permanent action BCs are now dealt with correctly in verification of Sum V.
| 01.06.2007 |

GGU-RETAIN | 4.43 a | - Area load and bounded surcharge propagation angle for several layers with differing friction angles.
| 11.05.2007 |

GGU-RETAIN | 4.43 b | - Export to GGU-STABILITY (new standard)
| 11.05.2007 |

GGU-RETAIN | 4.40 a | - Verification of driving depth surcharge overhauled.
| 13.04.2007 |

GGU-RETAIN | 4.40 b | - Point loads, parallel input of G and Q now possible.
| 13.04.2007 |

GGU-RETAIN | 4.40 c | - Graphics labelling of "Loads (bounded)" improved.
| 13.04.2007 |

GGU-RETAIN | 4.40 d | - Export to GGU-STABILITY Version 8.06 and higher
| 13.04.2007 |

GGU-RETAIN | 4.40 e | - Anchors increased by 15%.
| 13.04.2007 |

GGU-RETAIN | 4.40 f | - Equivalent EP coefficient via phi now also with 45°
| 13.04.2007 |

GGU-RETAIN | 4.41 | - Input of more than 6 anchors'
| 13.04.2007 |

GGU-RETAIN | 4.39 | - Export to GGU-STABILITY Version 8.06 or higher implemented
| 07.03.2007 |

GGU-RETAIN | 4.38 | - Bugfix: Verification of anchor soil possible w/o mean partial factors.
| 30.01.2007 |

GGU-RETAIN | 4.38 i | - Bugfix: "Area loads rectangular on equivalent wall" check box in "Heave of anchor soil" is now no longer applied to the general earth pressure calculation. (bug since Version 4.37)
| 30.01.2007 |

GGU-RETAIN | 4.38 a | - New standard: Output adjustment factor (passive earth pressure) in "General legend".
| 23.01.2007 |

GGU-RETAIN | 4.38 b | - New standard: heave FOS implemented.
| 23.01.2007 |

GGU-RETAIN | 4.38 c | - R 102 (EAB 2006) completely reworked.
| 23.01.2007 |

GGU-RETAIN | 4.38 d | - Floor live loads and bounded live loads can now be redistributed.
| 23.01.2007 |

GGU-RETAIN | 4.38 e | - Shear force transition points can be sent to output table.
| 23.01.2007 |

GGU-RETAIN | 4.38 f | - Soils can now also be displayed with hatching.
| 23.01.2007 |

GGU-RETAIN | 4.38 g | - Verification of injection pile pull-out resistance implemented.
| 23.01.2007 |

GGU-RETAIN | 4.37 a | - Output table: rotation (toe) will be output.
| 16.10.2006 |

GGU-RETAIN | 4.37 b | - Verification of deep-seated stability + anchor soil
| 16.10.2006 |

GGU-RETAIN | 4.37 c | - Verificaton of anchor soil: now also possible w/o partial safety factors.
| 16.10.2006 |

GGU-RETAIN | 4.37 d | - Length surcharge using equation: Not obligatory with EP coefficients after Streck.
| 16.10.2006 |

GGU-RETAIN | 4.36 a | - Bugfix: Export to GGU-STABILITY: Unit weights now correct when exporting from systems with differing soil properties on the active and passive side.
| 28.08.2006 |

GGU-RETAIN | 4.35 a | - New standard: Increase in anchor force now with earth pressure from live loads.
| 20.07.2006 |

GGU-RETAIN | 4.35 b | - New standard: Verification of vertical load-bearing capacity optimised.
| 20.07.2006 |

GGU-RETAIN | 4.35 c | - Bugfix: New standard: "Additional ordinate at 0.5 m spacing" and depth subdivisions > 0.10 and cohesion below base of excavation <> 0.0Calculation of theoretical embedment depth.
| 20.07.2006 |

GGU-RETAIN | 4.34 a | - Verification "Aufbruch des Verankerungsbodens" implementiert.
| 03.07.2006 |

GGU-RETAIN | 4.34 b | - Bugfix: "Deep-seated stability" Berechnung Earth pressure, wenn Schalter "Enter wall friction angle (equiv. wall) manually" activiert.
| 03.07.2006 |

GGU-RETAIN | 4.34 c | - Bugfix: New standard: "Verification of sum H" (soldier pile walls) now with passive earth pressure design value.
| 03.07.2006 |

GGU-RETAIN | 4.32 b | - Bugfix: Deep-seated stability for several anchors and phi = 0.0 in toe area.
| 11.05.2006 |

GGU-RETAIN | 4.33 a | - Bugfix: Output table (graphical) with moment transition points
| 11.05.2006 |

GGU-RETAIN | 4.32 c | - Bugfix: New standard: Iteration of degree of fixity for given wall length and Length surcharge using equation.
| 11.05.2006 |

GGU-RETAIN | 4.32 d | - -Output table printing improved.-Export to GGU-STABILITY improved.
| 11.05.2006 |

GGU-RETAIN | 4.32 a | - Bugfix: The equivalent ep coefficient was previously only checked at layer boundaries. This can now be specified for intervals of 0.5 m ("Editor 1" /"Active earth pressure").
| 05.05.2006 |

GGU-RETAIN | 4.31 a | - New standard: Bugfix: Design force for anchors/struts now correct.
- New standard: Labelling (anchors/struts) improved.
| 07.04.2006 |

GGU-RETAIN | 4.30 a | - Bugfix: "Differentiate active + passive soil properties" activated and active berms defined: Analysis now with friction angle on the active side.
| 12.01.2006 |

GGU-RETAIN | 4.29 a | - Displacement value output optimised.
| 03.12.2005 |

GGU-RETAIN | 4.29 b | - Verification Deap-seated stability
| 03.12.2005 |

GGU-RETAIN | 4.29 c | - Additional length using equation:Bounded live loads are now taken into consideration.Bugfix: Cohesion component is now multiplied by a faktor of "2.0".
| 03.12.2005 |

GGU-RETAIN | 4.28 a | - Bugfix: Iteration for user-defined section length.
| 09.11.2005 |

GGU-RETAIN | 4.27 a | - New standard: Printing of "active ep coordinates" optimised.
| 08.11.2005 |

GGU-RETAIN | 4.27 b | - Printing of "Length multiplier via equation" now with cohesion.
| 08.11.2005 |

GGU-RETAIN | 4.26 a | - New standard: Designation adapted.
| 01.11.2005 |

GGU-RETAIN | 4.25 a | - Bugfix: New Standard: Prestressing of anchor/struts is now correctly considered.
| 10.10.2005 |

GGU-RETAIN | 4.24 a | - If berms intersect groundwater automatic adaptation can be carried out.
| 29.09.2005 |

GGU-RETAIN | 4.24 b | - For extremely active "berm constructions" with negative "delta.h", negative active earth pressure may ensue under certain conditions. This can now be suppressed using a check box ("Editor 1 / Active earth pressure").
| 29.09.2005 |

GGU-RETAIN | 4.23 a | - Bugfix: Protocoll (new norm): Output "tau(D)" is now ok.
| 07.09.2005 |

GGU-RETAIN | 4.22 a | - Bugfix: Deap-seated stability: Under certain geometric conditions the shear strength was not correctly determined in all joints.
| 31.08.2005 |

GGU-RETAIN | 3.22 a | - Bugfix: Deap-seated stability: Under certain geometric conditions the shear strength was not correctly determined in all joints.
| 31.08.2005 |

GGU-RETAIN | 4.21 a | - New standard: Bug fix: Surcharges (permanent / changeable) were swapped.
| 21.06.2005 |

GGU-RETAIN | 4.21 b | - New standard: Bug fix: State variable (Q) output now correct.
| 21.06.2005 |

GGU-RETAIN | 4.20 a | - New standard: Design with user-defined sections reworked.
| 29.05.2005 |

GGU-RETAIN | 4.20 b | - New standard: Output table reworked.
| 29.05.2005 |

GGU-RETAIN | 4.20 c | - Area of influence of area loads etc. and berms can be hidden.
| 29.05.2005 |

GGU-RETAIN | 4.20 d | - New standard: Moment resulting from (Ep, red) can now be calculated with full length.
| 29.05.2005 |

GGU-RETAIN | 4.20 e | - Iteration of fixity improved for fixed section length.
| 29.05.2005 |

GGU-RETAIN | 4.19 a | - Bugfix: New standard: Displacement BCs with magnitude <> 0.0 and anchor deformations are now handled correctly.
| 21.05.2005 |

GGU-RETAIN | 4.19 b | - New standard: Lateral pressures can now also be defined as water pressure.
| 21.05.2005 |

GGU-RETAIN | 4.18 a | - Bugfix: New standard: Water pressure an the earth side is now correctly handled.
| 17.05.2005 |

GGU-RETAIN | 4.18 b | - New standard: Water pressure on the earth side can be activated or deactivated.
| 17.05.2005 |

GGU-RETAIN | 4.18 c | - Iteration precision improved for subgrade.
| 17.05.2005 |

GGU-RETAIN | 4.18 d | - New standard: Greater printing variability.
| 17.05.2005 |

GGU-RETAIN | 4.18 e | - New standard: Output of factors (passive earth pressure) for characteristic horizontal load.
| 17.05.2005 |

GGU-RETAIN | 3.21 a | - Iteration precision improved for subgrade.
| 10.05.2005 |

GGU-RETAIN | 4.17 a | - Percolation around wall can be subdued (analysis with flow conduit).
| 18.03.2005 |

GGU-RETAIN | 4.17 b | - Input of potentials alternatively possible via water pressures.
| 18.03.2005 |

GGU-RETAIN | 4.17 c | - Anchor force (earth pressure) can be increased.
| 18.03.2005 |

GGU-RETAIN | 4.17 d | - Toe potential implemented in accordance with EAU 1990 R 115.
| 18.03.2005 |

GGU-RETAIN | 4.16 a | - Bugfix: "General line loads" now works correctly again.
| 09.03.2005 |

GGU-RETAIN | 4.15 a | - Bugfix: Action effects G(D) for subgrade are noe calculated.
| 16.02.2005 |

GGU-RETAIN | 4.15 b | - Bugfix: Reinforced concrete design (bored piles, new standard) action effects are applied correctly.
| 16.02.2005 |

GGU-RETAIN | 4.14 a | - Verify "Sum V" (new standard) revised.
| 08.02.2005 |

GGU-RETAIN | 4.14 b | - Graphical representation of earth pressure (design values) can be turned of.
| 08.02.2005 |

GGU-RETAIN | 4.13 a | - Redistribution to EAU: Position of top of redistribution can be defined.
| 21.01.2005 |

GGU-RETAIN | 4.12 a | - Bugfix: Concrete design printout (new standards).
| 28.12.2004 |

GGU-RETAIN | 3.20 a | - Bugfix: "Deep-seated stability" verification for berms.
| 28.12.2004 |

GGU-RETAIN | 4.11 a | - Subgrade to R 102: Note for braced or anchored systems, if displacement at toe ist to soil side.
| 26.10.2004 |

GGU-RETAIN | 4.11 b | - Subgrade to R 102: At-rest pressure now with GW level an soil side.
| 26.10.2004 |

GGU-RETAIN | 4.10 a | - New standards implemented.
| 28.08.2004 |

GGU-RETAIN | 4.10 b | - Length surcharge with cohesion.
| 28.08.2004 |

GGU-RETAIN | 4.10 c | - Free earth support after Hettler.
| 28.08.2004 |

GGU-RETAIN | 4.10 d | - Active berms: surcharges alternatively computable unsing bouded surcharges (global FOS only, always active for partial factors).
| 28.08.2004 |

GGU-RETAIN | 4.10 e | - Passive ep to DIN 4085 (phi <= 35°) otherwise Caquot/Kerisel can be selected.
| 28.08.2004 |

GGU-RETAIN | 4.10 f | - Editor 1 / "System preferences" instead of "Project identification".
| 28.08.2004 |

GGU-RETAIN | 4.10 g | - Subgrade reaction can be adapted with eta(p) = 1.0.
| 28.08.2004 |

GGU-RETAIN | 4.10 h | - EAU 2004
| 28.08.2004 |

GGU-RETAIN | 4.10 i | - Subgrade to R 102.
| 28.08.2004 |

GGU-RETAIN | 4.04 a | - Bugfix: "Deep-seated stability" verification for berms.
| 01.08.2004 |

GGU-RETAIN | 3.19 a | - Bugfix: Prestressing force for prestressed struts.
| 12.02.2004 |

GGU-RETAIN | 4.03 a | - Bugfix: Prestressing force for prestressed struts.
| 12.02.2004 |

GGU-RETAIN | 4.00 a | - Output table implemented as graphic element.
| 01.08.2003 |

GGU-RETAIN | 4.02 b | - Table output improved.
| 24.07.2003 |

GGU-RETAIN | 4.02 a | - Equivalent ep coefficient printed in legend and output table.
| 24.07.2003 |

GGU-RETAIN | 4.01 a | - Modulus of subgrade reaction legend implemented.
| 18.07.2003 |

GGU-RETAIN | 3.18 a | - Bug in "Recalculate image coordinates" with Mini-CAD and absolute heights corrected.
| 11.09.2002 |

GGU-RETAIN | 3.17 a | - For berm modelling with user-defined earth pressure coefficients and active berms, the program automatically switches to earth pressure coefficients in accordance with DIN 4085.
| 23.04.2002 |

GGU-RETAIN | 3.15 a | - Sum H (soldier pile walls and bored pile walls) now with area loads.
| 05.11.2001 |

GGU-RETAIN | 3.14 a | - Updatetd verification sum V.
| 24.10.2001 |

GGU-RETAIN | 3.14 b | - Updated: Design legend.
| 24.10.2001 |

GGU-RETAIN | 3.13 a | - Batch print implemented.
| 08.10.2001 |

GGU-RETAIN | 3.11 a | - Struts can now be assigned a degree of fixity on the left-hand side.
| 06.01.2001 |

GGU-RETAIN | 3.10 a | - In-situ concrete walls divided into diaphragm walls and secant pile walls.Inertia moment for secant pile walls now calculated automaticallyDiaphragm wall thickness and secant pile diameter and spacing are now entered in menu item "Editor 1 / Excavation".Therefore, list of "In-situ concrete walls" (Editor 2/In-situ concrete) is gone.Bored pile walls are analogous. The given secant pile width is solely for calculation of earth pressure after Weissenbach. The diameter of the secant pile can deviate. It is used for determination of the inertia moment and for dimensioning (input of secant pile diameter in menu item "Editor 2/Bored pile walls").
| 22.07.2000 |

GGU-RETAIN | 3.10 b | - Graphic presentation of retaining wall as legend implemented.
| 22.07.2000 |

GGU-RETAIN | 3.00 a | - Automatic iteration of profile length for free systems with a choice of additional iteration criteria:Maximum permissible wall crown displacement or maximum permissible wall crown torsion.Settings in menu item "System/Analyse" and then select button "Embedment depth via".Then activate the button "Profile length automatic and toe free".
| 01.06.2000 |

GGU-RETAIN | 2.13 a | - With activated "Use absolute heights" switch the heights of soil layers etc. can, if wished, be fitted to a new wall crown height.
| 15.05.2000 |

GGU-RETAIN | 2.13 b | - Weight of sheet pile wall presentable in dimensioning legend if wished.
| 15.05.2000 |

GGU-RETAIN | 2.12 a | - Font preferences extended (menu item "Page/Font sizes").
| 10.04.2000 |

GGU-RETAIN | 2.04 a | - gamma(f) and (gamma(r) < 10.0 kN/m³ now permissible.
| 14.09.1999 |