GGU-TRENCH: "Analysis options" menu item

You can select the desired verification concept. If a partial factor concept is selected, the partial factors for "Slurry fluid" (_H) and "Earth pressure" (_E) can be entered. Further information is available by pressing the "Info" buttons (see also "Analysis principles").

In order to guarantee the compatibility of the older records it is still possible to select DIN 4126-100 here and edit the partial safety factors.

Analysis compliant with DIN 4126 5.3 requires the characteristic value of the buoyant unit weight of the soil in the slurry. The buoyant unit weight of the soil may be adopted as an approximation. If the check box "Analysis of slip of individual grains with gam(s) and n" is deactivated, the buoyant unit weight of the soil is adopted for analysis. Otherwise, a more precise analysis compliant with DIN 4126 5.3 is performed.

If you activate the "Use absolute heights" check box, all information with regard to trench depth, guide wall depth, suspension level, groundwater level and depth of soil layers can be given in absolute heights (e.g. in m AD). In the dialog box for diaphragm wall input (see menu item "Edit/Diaphragm wall") the height of the ground level must then also be entered in absolute figures. In all relevant dialog boxes, the input value will be shown as [m AD] instead of [m]. This simply provides clarity. You are, of course, free to select a reference level other than [m AD]. If you do not activate the "Use absolute heights" check box, ground level is assumed to be 0.0 m and all depth information is positive downwards.