厦门地区残积土层中施工降水沉降计算模拟

Numerical simulation of Construction Pumping Water in Residual Soil of Xiamen

轨道交通工程矿山法开挖过程中,花岗岩残坡积地区降水与开挖分别导致的沉降常常难以区分和判定。本文利用厦门轨道交通1号线塘边~火炬园站区间降水与隧道开挖掘进过程引起的沉降变形进行数值模拟,并与现场监测结果进行对比分析,得到了降水与隧道开挖导致的地表沉降变形规律及水位变化规律,可为今后类似工程提供案例与参考。

It is a very difficult problem for engineer to distinguish the settlement caused by excavation or pumping water at granite residual soil area in Xiamen. In this manuscript,construction pumping water and excavation from Tangbian Station to Huojuyuan Station has been simulated numerically,and compared with monitoring data. And the law of land subsidence with pumping water and excavation has been obtained in the end. Moreover,it is important and meaningful for future similar construction.