摘要
介绍了小直径超深圆形基坑工程的施工监测情况。对围护墙体和坑外土体的侧移以及坑外土体的深层沉降变形的分析表明,小直径圆形基坑施工引起的环境变形较小。作用在围护墙上的坑外土压力测试结果表明,由于小直径圆形基坑的变形较小,在开挖施工过程中,土压力基本稳定,其变化主要由深层承压水降水引起。
Monitoring of a small diameter deep circular excavation is introduced in this paper. Results of the lateral displacement of diaphragm walls and the settlement of the foundation show that the deformation caused by the small - diameter deep excavation is small. The measured soil pressure on the diaphragm walls is steady during excavation. The variation of soil pressure is mainly caused by the dewatering in the confined aquifers.
出处
《地下空间与工程学报》
CSCD
2008年第2期351-354,共4页
Chinese Journal of Underground Space and Engineering
关键词
小直径
深基坑
施工监测
土压力
变形
small diameter
deep excavation
construction monitoring
soil pressure
deformation
