PREDICTION OF STRUT FORCE FOR AN EXCAVATION OF METRO UNDER GROUND STATION CONSTRUCTION USING FLAC3D

Abstract

Deep excavations in city areas are increasing day by day. If the excavation is done close to heavily populated
areas, it will be great challenge for the engineers to protect the buildings and to minimize the settlements. Retaining walls
are used to support the excavation and to provide stability to the side walls. Strut beams are used to keep the retaining
wall in position and to prevent the lateral deformation of the wall due to earth pressure. In this paper analysis of the strut
beam force is done with FLAC3D software for an excavation near a major building. The strut forces developed were
compared with the field monitored data and the results are found to be in good agreement.