摘要
由于岩土体性质的复杂性、多变性及各种计算模型的局限性,基坑开挖过程仅靠理论分析和经验估计很难准确地预测工程施工对地表、建构筑物、管线等产生的影响。以福州某基坑为例,通过理正深基坑7.0PB1建立计算模型,对开挖过程SMW工法桩变形进行研究,结合现场监测数据对比分析,检验工程设计、施工方案的正确性,可为同地区同类基坑支护设计和施工提供参考。
Due to the complication and variation of geomaterials and the limitation of various prediction models,it is very difficult to accurately predict the impact of deep excavation on the adjacent ground,utilities and buildings based only on theoretical and empirical approaches.This paper presents a case history of the comparative studies on the deep excavation supporting structure between the theoretical analysis and construction monitoring data.The soil mixing wall(SMW)supporting structure in the deep excavation process was simulated by the commercial geotechnical software Lizheng version 7.0 PB1,the simulated data then were compared with the construction instrumentation data.It is therefore verified that the SMW could be adequately used as the supporting structure for the deep excavation.
作者
王涛
WANG Tao(Fujian Geological Investigation Co.,Ltd.,China Chemical Geology and Mine Bureau,Fuzhou 350013)
出处
《土工基础》
2020年第3期304-307,共4页
Soil Engineering and Foundation
关键词
基坑
SMW工法桩
现场监测
对比分析
Deep Excavation
Soil Mixing Wall Method
Construction Monitoring
Comparative Analysis
