Study on the behavior of diaphragm walls-pile raft foundation subjected to building loads

Abstract

In designing and calculating the piled raft foundations for tall buildings,  many calculations do not take into account the participation of the diaphragm walls. The load-bearing capacity of the diaphragm wall is significant when the diaphragm wall is inserted into the hard ground. In this paper, the involvement of the diaphragm wall system together with the piled raft foundation was analyzed and evaluated by the PLAXIS 3D V20 software for an project. With the piled raft foundation, the distribution of load on the raft is 13.48%, and the pile group is 86.52%. When the piled raft foundation is combined with the diaphragm wall , the percentage of load on the raft is 13.48%, the percentage of the load on the pile group is 70.62%, and the diaphragm wall is 15.9%. As a result, the percentage of load on the pile group decreases by 15.9% when the piled raft foundation is combined with the diaphragm.