淤泥质软土基坑支护设计及监测成果分析  

Analysis of the Design and Monitoring Results of Silty Soft Soil Foundation Pit Support

作　　者：贾战磊 Jia Zhanlei

机构地区：[1]江苏省地质局第三地质大队,江苏镇江212021

出　　处：《江苏建材》2025年第2期75-77,83,共4页Jiangsu Building Materials

摘　　要：为确保基坑施工安全,以淤泥质软土区某基坑为工程背景,先开展基坑支护设计,并结合现场变形监测成果,通过变形预测分析支护方案的有效性。考虑基坑开挖范围内主要为淤泥质土,工程性质较差,结合工程实际,将基坑支护方案设计为“支护桩+锚杆+内支撑”。同时,经基坑变形监测成果分析,水平变形的最终预测值范围为19.18~20.37 mm,沉降变形的最终预测值范围为21.03~24.40 mm,均处于变形控制范围内,说明基坑支护措施合理有效。In order to ensure the safety of foundation pit construction,the foundation pit support design was first carried out with the foundation pit in the silty soft soil area as the engineering background,and the effectiveness of the support measures was analyzed through deformation prediction in combination with the on-site deformation monitoring results.The analysis results show that the excavation range of the foundation pit is mainly silty soil,and the engineering nature is poor.At the same time,according to the analysis of foundation pit deformation monitoring results,the final predicted value range of horizontal deformation is 19.18~20.37 mm,and the final predicted value range of settlement deformation is 21.03~24.40 mm,which are within the deformation control range,indicating that the foundation pit support measures are always reasonable and effective.

关 键 词：淤泥质土 基坑支护 变形监测 变形预测 

分 类 号：TV551.4[水利工程—水利水电工程]