摘要
近年来 ,喷锚网支护技术在全国各地的深基坑支护工程中得到了广泛应用 ,本文对成都某高层建筑砂卵石深基坑 (深 11m)喷锚网支护工程进行了变形试验研究。通过监测基坑分步开挖与支护过程中坑壁及地表土体的变形发展 ,分析了影响基坑变形的各种因素 ,以期为喷锚网支护的设计和施工提供一定参考。
This paper presents the results of displacement monitoring for a 1 lm deep excavation of the foundation pit for a high rise building situated in a sand cobble deposit in Chengdu, Sichuan Province. The vertical excavated wall is constructed by the so called 'top down' step by step method. After each excavation step, the meshing, shotcreting and soil nailing are followed subsequently. Displacements are observed along key points on the wall as well as on the top ground surface. A number of influencing factors affecting the de formation of foundation pit is analyzed at the end of the paper.
出处
《地下空间》
CSCD
2001年第5期418-421,共4页
Underground Space
关键词
喷锚网
支护
砂卵石
基坑
变形观测
空间效应
试验
soil nailed supporting system
foundation pit excavation
sand cobble deposit
step by stepexcavation
displacement observation
spatial effect
