陈  炯
    （上海宝钢设计研究院 201900）

[提要]  在基坑工程中，忽视软粘土结构性造成的计算参数随施工工法的可变性导致的事故不时发生。作者较全面地论述了软粘土结构性及基础桩施工方式对软粘土区基坑挖方性状的影响以及引起的破坏现象，以期工程设计时恰当地考虑和预估这一重要影响因素，避免类似事故重演。
[关键词]  软粘土  结构性  深基坑  基础桩  施工工法

It happens sometimes that ignoring convertibility of calculation parameters with construction methods due to structural character of clay causes slumping or excessive displacement of deep foundation pits.This paper discusses systematically effect of structural character of clay and construction methods of foundation piles on behavior of deep excavation in soft clay to consider and pre-estimate suitably the important effect of character of clay and avoid similar cases repeating in foundation pits engineering.
Keywords:  soft clay; structural character; deep excavation; foundation piles; construction method