浅埋暗挖法地下穿越工程变形监测概述与实例分析

Overview and Case Analysis of Deformation Monitoring in Underground Crossing Engineering by Shallow Buried Excavation

结合浅埋暗挖法地下穿越工程变形监测的经验,在总结变形监测控制网的建立、穿越工程的监测项目选择、不同监测项目的测点布设及观测方法的实践基础上,就采用优化的独立坐标系统观测工作井桩顶(冠梁)水平位移、采用精密三角高程测量方法代替水准测量对某些危险区域进行沉降观测等方面进行了探讨。

Combined with the experience of monitoring deformation in underground crossing engineering by shallow buried excavation,on the basis of summarizing the establishment of deformation monitoring and control network,the selection of monitoring projects for crossing projects,the layout of measurement points in different monitoring projects and the practice of observation methods,this paper discusses using an optimized independent coordinate system to observe the horizontal displacement of well piles(crown beams)and using precision triangular elevation measurement instead of standard measurement to carry out settlement observation of certain dangerous areas.