基坑围护结构水平位移监测常用方法比较  

Comparison of Several Methods for Horizontal Displacement Monitoring of Foundation Pit Enclosure Structure

作　　者：崔旭升 陈旭云 CUI Xusheng;CHEN Xuyun(School of Geomatics and Marine Information, Jiangsu Ocean University, Lianyungang Jiangsu 222005, China)

机构地区：[1]江苏海洋大学测绘与海洋信息学院,江苏连云港222005

出　　处：《北京测绘》2020年第3期432-436,共5页Beijing Surveying and Mapping

摘　　要：本文介绍了基坑围护结构水平位移监测的各种方法及新技术,重点讨论和分析了视准线法、极坐标法与角度交会法,结合误差传播定律分别对各方法监测点精度进行推算;在极坐标法的基础上,提出了监测精度更高的双极坐标法。论文结合具体基坑监测工程,分别利用每种方法对基坑围护结构水平位移监测进行精度估算,并分析不同监测方法的适用情况,为类似基坑水平位移监测方案设计提供理论参考。This paper introduces various methods and new techniques for horizontal displacement monitoring of foundation pit enclosure structure.Collimation line method,polar coordinate method and angle intersection method are discussed and analyzed emphatically.Using the error propagation law,the monitoring points precision of each method are calculated separately.On the basis of polar coordinate method,a double coordinate method with higher monitoring precision is proposed.Combined with the specific foundation pit monitoring project,each method is used to estimate the monitoring precision of horizontal deformation of foundation pit enclosure structure,and the application of various monitoring methods is analyzed,which provides a theoretical reference for the design of horizontal displacement monitoring for similar foundation pits.

关 键 词：基坑监测 水平位移 视准线法 极坐标法 角度交会法 精度分析 

分 类 号：P258[天文地球—测绘科学与技术]