沉井基础应用及试验模拟

Application and Test Simulation of Sunk Shaft Foundation

沉井因埋深大、整体性强、稳定性好和施工工艺简单等优势被广泛应用于基础建设项目中。但是,随着建设项目的扩展,沉井深度越来越深,尺寸越来越大,下沉过程对沉井刃脚要求越来越高。本文介绍了沉井刃脚下沉过程中刃脚处扰动土压力的变化规律,介绍了相关试验模拟方法,以期得到扰动土压力作用下沉井刃脚受力机理,为沉井刃脚的设计提供理论依据。

Sunk shaft foundation is widely used in infrastructure projects because of its deep buried depth,strong integrity,good stability and simple construction technology.However,with the expansion of construction projects,the depth and size of sunk shaft foundation are getting deeper and larger,and the requirements for the edge of sunk shaft foundation are higher and higher.This paper introduced the variation law of disturbed earth pressure at the edge of sunk shaft foundation in the process of sinking,and introduced the relevant experimental simulation methods,in order to obtain the force mechanism of sunk shaft foundation under the action of disturbed earth pressure,and provide theoretical basis for the design of sunk shaft foundation edge foot.