Predicting the Displacement of Diaphragm Wall for Deep Excavation Problem on the Basing Thickly Soft Soil in an Urban Area Using Semi-Top-Down Construction Method

Abstract

In this study, the finite element method (FEM) is employed in the forecasting the displacement of diaphragm wall. A popular and effective constructed method, termed semi-top-down (STD), is adopted to reduce the displacement of the diaphragm wall as well as ground settlement. The response of soil and diaphragm walls is thoroughly investigated via the Hardening Soil (HS) model. An actual project is employed to evaluate this simulation. The obtained results draw a preliminary picture of the estimating displacement of a diaphragm wall and the proper way to forecast soil parameters excavation problems of a high-rise building on base thick, soft soil as the in Ho Chi Minh City, Vietnam.