The program system allows comfortable data input. The system is displayed on the screen. Every change in data is shown on the screen, so that optimum control of input data is guaranteed. A variety of graphical presentation possibilities, to a high standard of quality, allow you to present the calculation results according to your wishes.

The working group 5.9.3 of the FGSV (Forschungsgesellschaft für Straßen und Verkehrswesen - German Research Group for Road and Traffic Systems) has developed a paper for the calculation of gabions. This paper represents the main basis for programming.

The program was developed in early 1999, in part from previously existing program modules.

Capabilities

The GGU-GABION program has the following special capabilities (and maximum values):

• Almost any kind of definition of gabion bodies
• Base inclination of the gabion body
• 50 soil layers
• 5 benches on the active side
• 5 benches on the passive side
• Calculations with active, increased active and at-rest earth pressure
• Active earth pressure coefficients, MOHR / COULOMB and user-defined values
• Passive earth pressure coefficients, MOHR / COULOMB, STRECK / WEIßENBACH, CAQUOT / KERISEl and user-defined values
• Calculation of settlements
• Calculation of external stability
• Verification of inner stability along the lines
• Comfortable interface to the slope stability program GGU-STABILITY for fast investigations of terrain stability
• 50 surcharge earth pressure figures
• 20 block loads at any depth
• Static calculations of the wall via a two-dimensional rod structure program module on the basis of finite-element methods.
• Definition of up to 10 additional path boundary conditions (torsion, displacement for x and y) at any position.
• Definition of up to 10 additional force boundary conditions (moment, cross force and normal force) at any position.
• A variety of different earth pressure redistribution figures:
  - without redistribution
  - rectangular
  - 2 rectangles
  - triangular (choice of maximum at the top, center or at the bottom)
  - trapezoid
  - quadrilateral with maximum at the geogrid layers or in any position
  - user-definable redistribution figure via definition of a polygon course

• The passive earth pressure can be above or in front
• After the system is calculated the earth pressure, water pressure, moment, horizontal force, vertical force and the relationship µ * V/H are automatically displayed on the screen. The screen presentation can be varied within wide limits.
• Presentation of the pressure line, the first and second core dimensions and the gravity axis.
• Six legends can be shown on the screen, containing the soil properties, general calculation information, any settlement information and principle design values. In this way, almost all initial calculation data are documented on the screen.
• The program works on the principle of "What you see is what you get". This means that the screen presentation almost completely represents that which you will see on your printer. It also means that you can have the current screen contents sent to the printer at any stage during processing. With a consequent realization of this principle, the screen would have to be refreshed after every alteration you make. For reasons of efficiency, and as this can take several seconds for complex screen contents, the GGU-GABION screen is not refreshed after every alteration. If you would like to refresh the screen contents, you may press either the [F2] key, or the [Esc] key. The [Esc] key will additionally set the screen presentation to A4. The "What you see is what you get" principle provides the possibility of sending the current screen contents to the printer at any time during processing (including during input). Select the menu item "File / Print" and then the "Printer" button
• Use of any True-type fonts, guaranteeing an excellent layout
• Colour presentation of almost all system geometry. The colors can be freely specified by the user. In particular, the soil layers can be color-filled The colors can also be specified
• Zoom function
• Mini-CAD system (additional labeling, lines, rectangles, circles, Bitmap graphics et