GGU-RETAIN: Earth pressure redistribution

Classical earth pressure redistribution is not appropriate for braced or tied-back retaining walls. Earth pressure calculated according to classical theory must be redistributed.

A large number of redistribution figures are programmed into the program. In addition, any form of redistribution figure can be created by defining any polygon. The figures available are given below:

• rectangle,

• 2 rectangles,

• triangle, maximum at top,

• triangle, maximum at centre,

• triangle, maximum at base,

• trapezoid,

• quadrilateral with maximum at anchor locations or at any point,

• user-defined redistribution figure by means of a polygon,

• all EAB redistribution figures.

• EAU 2012.

For normal retaining walls, earth pressure redistribution according to the EAB is certainly the simplest way to find the correct redistribution figure. If you select this option, you only need to wait for the analysis to be completed. The program automatically selects the correct redistribution figure from the possible redistribution figures according to EAB (R 69 for soldier pile walls and R 71 for sheet pile or in-situ concrete walls). If GGU-RETAIN is unable to find a suitable EAB figure because of abnormal anchor or strut positions, analysis is terminated, and a warning message is displayed. You then have to think about the redistribution figure yourself and select one of the other figures offered.

You can specify whether block loads are to be included in the redistribution. Water pressure is never redistributed.