误差椭圆在基坑水平位移监测中最佳自由站选择的应用  

The Application of Error Ellipse Principle in the Chosen of Better Station in the Pit Horizontal Displacement Measurement

作　　者：李东风[1] 李盼盼[2] 

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001 [2]福建农林大学,福建福州350002

出　　处：《北京测绘》2015年第1期69-71,108,共4页Beijing Surveying and Mapping

摘　　要：基坑水平位移监测常用的方法有小角法、前方交会等。由于城市基坑复杂的现场条件,全站仪自由设站法被越来越多的应用。为了确保自由设站法监测点精度,需要选择合格的自由站点。在具体的基坑项目中利用误差椭圆原理,讨论了在满足精度前提下自由站较佳设站点位的选择的方法。Some methods are commonly used in the monitoring of pit horizontal displacement, such as small angle method and the intersection. The total station free station method is frequently applied because of the complicated urban pit condition. After studying the specific project, this article discusses how to choose a better place for the free station which meets the request of accuracy that is based on the error ellipse principle.

关 键 词：基坑 水平位移监测 自由设站法 误差椭圆 较佳设站 

分 类 号：TB22[天文地球—大地测量学与测量工程]