深基坑开挖对邻近建筑物影响数值分析

Numerical analysis of the impacts of deep foundationpit excavation on neighboring buildings

文章针对复杂周边环境下的深基坑开挖,提出将基坑边线附近地层稳定分析引入基坑施工模拟过程的新方法;结合地层分析与三维有限元计算模拟基坑施工过程,表明地层稳定分析有助于判断基坑底部岩层之间的相对滑移状况,采用真实的地层曲面也使模拟的基坑支护体系的受力状态更加符合实际;验证该方法的可行性,所提出的方法为今后复杂周边环境基坑分析提供了一个新思路。

In allusion to the deep foundation pit excavation with a complex environment surrounding, a method to simulate the process of foundation pit excavation is proposed considering the stability analysis of the stratum near the pit lines. By combining stratum stability analysis and three-dimensional finite element analysis, it is shown that stability analysis of the stratum will be helpful in judging the slip between the rocks at the bottom of the pit, and the use of the actual stratigraphic surfaces makes the result of the numerical simulation of the deep foundation pit more realistic, which can verify the feasibility of the method and also provide some new ideas for the analysis of the deep foundation pit excavation.