基坑开挖引起地表沉降的计算方法  

Calculation Method of Surface Settlement Caused by Foundation Pit Excavation

作　　者：赵园园[1] 耿欧[2] 范加冬 Zhao Yuanyuan;Geng Ou;Fan Jiadong

机构地区：[1]中国矿业大学徐海学院,江苏徐州221000 [2]中国矿业大学,江苏徐州221000

出　　处：《江苏建材》2024年第4期94-97,共4页Jiangsu Building Materials

基　　金：江苏省高等学校自然科学研究面上项目(地铁车站施工扰动下粉质黏土的力学特性及工程响应研究21KJB560019)。

摘　　要：通过分析基坑开挖引起地表沉降的主要原因,梳理了地表沉降的影响因素,进而对不同工况下地表沉降的形态进行深入分析。对于地表沉降的计算方法,研究了Peck曲线法、地层损失法、数值模拟法以及监控量测法的应用特点及适用条件,最后以南京某地铁基坑工程为例对基坑开挖引起的地表沉降进行计算分析。By analyzing the main causes of surface settlement caused by foundation pit excavation,the influencing factors of surface settlement were sorted out,and then the morphology of surface settlement under different working conditions was analyzed in depth.For the calculation method of surface settlement,the application characteristics and applicable conditions of Peck curve method,formation loss method,numerical simulation method and monitoring and measurement method are studied,and finally the surface settlement caused by foundation pit excavation is calculated and analyzed by taking a subway foundation pit project in Nanjing as an example.

关 键 词：基坑 地表沉降 影响因素 计算方法 

分 类 号：TV551.4[水利工程—水利水电工程]