摘要
基于水平角度、水平距离观测值与基坑水平位移之间的内在相关关系,提出了一种"自由设站余弦定理法",该方法具有可以根据工程现场实际情况自由设站、无需加密平面控制点、无需测试人员后视定向、作业过程更加简单快捷、通用性更强等优点;模拟试验数据计算结果表明,该方法可以取得较高的监测精度,完全可以满足基坑水平位移监测工作的需要。
Based on the inner relationship between the horizontal angle and distance with the horizontal displacement of foundation pit,a new method named ＂free station Cosine Law＂ is given.This method could set the control station according to the project actual situation、does not have to encrypt horizontal control points、does not have to be orientation by backsight with surveyors and has very good commonality and feasibility.simulation test data results show that the monitoring accuracy of the horizontal displacement using the new method could be rather high and meet the needs of monitoring.
出处
《北京测绘》
2012年第6期17-21,共5页
Beijing Surveying and Mapping
关键词
基坑
水平位移
监测
excavation
horizontal displacement
monitoring
