自由设站坐标法监测基坑水平位移的精度估算

Precision Estimation of Free Station Coordinate Method for Monitoring Horizontal Displacement in Foundation Pit

针对利用全站仪自由设站法可解决基坑周围场地狭窄而不便于设置固定基准点的问题,基于全站仪自由设站坐标法对该法进行了详细的误差分析,推导了精度估算公式,并将此公式应用于实际工程。结果表明,该法行之有效,可供类似工程借鉴。

Free station method with total station can be used to solve the problem of narrow space around the foundation pit for setting fixed reference point inconveniently.The error of free station coordinate method is analyzed in detail and the formula of precision estimation is deduced.The proposed formula is applied to practical project.The results show that the method is effective and it provides reference for engineering project.