![]() ![]() The purpose of this note is to summarise the requirements of EC7 as they relate to embedded retaining walls and the use of WALLAP in their design. Separate data sets (SLS and ULS parameters) are required to fully investigate the two limit states. This allows the user to investigate both Ultimate and Serviceability Limit States. WALLAP carries out Limit Equilibrium and Soil-Structure Interaction analyses at each stage of the construction sequence. It remains to be seen whether all or part of the design process will be automated in future. For the time being the assistance provided in WALLAP will be restricted to the following advice. There are no automatic features for introducing partial factors although WALLAP does offer a convenient facility for factoring the strength and stiffness of groups of soil types as part of the data editing options. ![]() As things stand at present (WALLAP version 5.04), it is up to the user to select appropriate soil properties, excavation levels, surcharges and water pressures for the various different cases - short and long term conditions, load combinations, ULS and SLS. ![]() The use of WALLAP in the context of Eurocode 7 (EN 1997-1, Eurocode 7:Geotechnical Design) WALLAP allows you considerable freedom to follow the design requirements of Eurocode 7 (EC7) and many other codes of practice. ![]()
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