Behavior of an earth retaining wall during deep excavation in Shanghai

摘要

In this paper, simulation methods and measurement systems for earth retaining strucutres during deep excavation work in Shanghai, China are discussed. In the simulation analysis, the stiffness of the ground on the excavation side was reduced due to the presence of vertical voids induced from the installation of plastic-board drains and other pre-excavation construction. The stiffness of the earth retaining wall was also reduced due to the cracks in the concrete. With these modifications, the results of the simulation analysis showed values quite similar to the measured data. Consequently, it is concluded that the simulation methods, measurement systems and execution methods previously applied to excavation works in Japan are applicable to excavation works in Shanghai soft ground.