Stability Analysis of Cellular Retaining Structure by PLAXIS

Abstract

In this study, analysis of retaining structure by using the software PLAXIS isadopted and the deformation that occurs in the body of the retaining structure afterapplied the failure load detected; the failure loads are obtained from the series of laboratory tests. Then, the cofferdam is modelled by using finite element codePLAXIS. The laboratory tests have been carried out two diaphragm cells of different widthto depth ratios, and used three different soil materials (subbase, sand passing No.4,river sand, and clay). The analysis includes studying the effect of height, width, andembedment depth. The input data of soils that are used in this software are getting from these laboratory tests. The comparison is done between the deformation that is obtained from the actual experimental and the software PLAXIS. It can be seen that thedisplacement for the retaining structure place on ground surface in the laboratory testequal to 0.00322m and the displacement that obtain from PLAXIS equal to 0.00372m,and the displacement for retaining structure with embedment depth in laboratory testequal to 0.00321m and the displacement from software PLAXIS equal to 0.00263mThus, the results from these two studies have been found closed to each other.