复杂环境条件下的深基坑支护设计与分析

Design and Analysis of Deep Foundation Pit Support under Complex Environmental Conditions

以上海地区某深约7 m的周边环境复杂的深基坑工程为例,根据该工程的基本情况及特点,进行基坑围护形式比选。通过计算分析坑边超载与基坑的距离、围护桩插入比、围护桩直径等主要因素与基坑变形量的关系,得到各影响因素对基坑变形影响的规律,为类似工程的基坑围护设计提供经验。

Taking a deep foundation pit project with a complex depth of about 7m in Shanghai area as an example,according to the basic conditions and characteristics of the project,the selection of foundation pit form is carried out. Through the calculation and analysis,the relationship between the main factors such as the distance between the pit and the foundation pit,the insertion ratio of the retaining pile and the diameter of the retaining pile and the deformation of the foundation pit are obtained. The law of the influence of various influencing factors on the deformation of the foundation pit is obtained. Foundation pit enclosure design provides experience for similar engineering.