无超载时围护结构水平位移与墙后地表位移关系研究

Study on Relationship of Horizontal Displacement of Supporting Wall and Surface Settlement behind the wall in the deep excavation without Superload

分析了引起基坑围护结构变形的主要因素,以简单位移场及修正的地层补偿法位移场模拟无超载时围护结构水平位移与墙后地表位移的对应关系,并结合上海软土深基坑工程的实践,给出收缩系数及坑周地表位移的表达式。

This paper analyzes the main causes of the deformation of supporting wall and simulates the relationship of horizontal displacement of supporting wall and surface settlement behind the wall without superload by simple displacement field and modified ground compensation displacement field. Contraction coefficient and expression of surface settlement around deep excavation are concluded on the basis of the practices of deep excavation engineering in the soft ground of Shanghai.