圆形基坑地下连续墙的稳定性分析

On the Stability of Diaphragm Wall on Underground Circular Excavation

通过对连续墙不同入土深度时某地铁风井圆形基坑的设计方案进行离心模型试验 ,分析了基坑开挖引起的位移 ,得出了直径小于 3 0m的圆形基坑入土系数的合理取值范围 。

For the design of diaphragm walls on circular excavation under different embedment depths, a centrifugal model test is often carried on to analyze the displacement caused by the digging of the excavation, and obtain the reasonable embedment factors of circular excavation( φ <30 m). This article discusses the test and summarizes the displacement law of circular excavation.