ANALYSIS OF EMBEDDED RETAINING WALLS HAVING COMPACTED BACKFILLS NEAR BABU JAGJIWAN RAM MEMORIAL HOSPITAL AT JAHANGIR PURI, DELHI

Abstract

Retaining walls have been widely constructed all over the world. In this study retaining walls behind the Babu Jagjiwan Ram Memorial hospital at Jahangir puri was considered under study. Properties of soil were assessed and classification was done. There were two retaining walls one behind the other separated by suitable distance. Influence of water table was also considered in the study. One retaining wall consisted of inclined backfill having a approximate slope angle of 30° and another retaining wall consisted of horizontal levelled levelled backfill. Surcharge load on the backfill was suitably considered by loads of different magnitudes on the upper and lower backfill. It is being mentioned that the backfill in this study had already been compacted before the analysis. Plaxis 2D software is used for analysis considering 15 node strain criteria. Some of the material properties like cohesion value, angle of friction in case of sand were determined from soil testing in lab. Case history of the site and some other data like water table level, material properties was verified from respective Public Works Department Division, Division M-32, Sub division M-321. An attempt to analysis of retaining wall for stability for loading condition as on site using finite element analysis software PLAXIS 2D. The analysis was carried out successfully and the results were found to be satisfactory and different distributions like deformations, stress , active pore pressure distribution are also plotted in this study to have a good insight into the analysis.