坐标法水平位移监测点位移量的计算方法

Coordinate Method for Calculating Displacement of Horizontal Displacement Monitoring Points

指出了随着测绘仪器及测绘科学技术的发展,工程建设项目的变形监测大多采用GNSS静态测量法、高精度全站仪极坐标法、导线测量法获取位移点的坐标。针对边坡倾向或基坑侧壁不平行于施工坐标系轴向的监测点,不能直接获得该点在滑动方向上的水平位移偏移量,推导了一种针对不规则的弯曲边坡、与施工坐标系轴向成任意角度的边坡或基坑侧壁监测点的水平位移量求解方法。

With the development of the technology and instruments of surveying and mapping engineering,the deformation monitoring of engineering construction projects mostly adopts GNSS static measurement method,high-precision total station polar coordinate method and traverse measurement method to obtain the coordinates of displacement points.It is difficult to obtain the horizontal displacement of monitoring point in the slope or foundation pit,which is not parallel to Construction Coordinate System axis.This paper mainly derived a method for calculating horizontal displacement of monitoring point of unmeasured bending slope,slope or foundation pit side wall at arbitrary angle with construction coordinate system axis.