软土地基上的地下墙圆井深开挖工程  

Deep Excavation of a Circular Shaft Protected by Polygonal Shape Concrete Wall in Soft Soil Foundation

作　　者：汪贵平 顾宽海 王锦 马昌曦 

出　　处：《造船工业建设》2005年第4期24-28,共5页

摘　　要：本文结合工程实例介绍软土地基上由多边形地下墙组成的圆井围护的深开挖工程，通过深井降水减压，避免了承压水条件下深开挖工程的坑底降起和管涌现象，实现了深基坑工程干开挖和干封底，确保了工程和环境安全。In this article, we introduce the application of polygonal shape concrete wall, which is used as protected structure, in the engineering of a circular shaft in soft soil foundation. By deep precipitation and decompression, the problem of deep excavation over pressure water was successfully settled, and the effect of bottom uplifting and piping was avoided. By these means, we realized dry excavation and dry sealing in deep excavation engineering, and enssured the safety of engineering and environment.

关 键 词：多边形地下墙 圆井围护 深井降水 回弹 稳定 

分 类 号：TU753.1[建筑科学—建筑技术科学] TU471.8