基坑水平位移监测方法提高精度的研究  

Research on Improving the Accuracy of the Horizontal Displacement Monitoring Method of Foundation Pit

作　　者：郭林云 徐泮林[1] 何士伟 GUO Linyun;XU Panlin;HE Shiwei(College of Geomatics,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《测绘与空间地理信息》2021年第3期179-182,共4页Geomatics & Spatial Information Technology

摘　　要：在深基坑日益普及的今天,对基坑稳定性的监测要求也越来越高,高效快捷地完成基坑水平位移监测成为研究的重要问题。本文主要介绍了常用的4种基坑水平位移监测的方法,并对轴线法、小角法、极坐标法、自由设站法进行精度分析,当提高精度的措施在施工场地受限时,采用极坐标法结合自由设站的方法不仅计算简单、操作方便,而且能满足较高的精度要求。Nowadays,with the popularization of deep foundation pit,the requirements for monitoring the stability of foundation pit are higher and higher.It is an important problem to complete the monitoring of horizontal displacement of foundation pit efficiently and quickly.This paper mainly discusses four types of commonly used horizontal displacement monitoring methods of foundation pit,and analyzes the accuracy of axis method,small angle method,polar coordinate method and free station setting method,and gives the measures to improve the accuracy.When the construction space is limited,the polar coordinate method combined with free station setting method is not only simple in calculation and convenient in operation,but also can meet the higher accuracy requirements.

关 键 词：水平位移监测 极坐标法 自由设站法 

分 类 号：P25[天文地球—测绘科学与技术] TB22[天文地球—大地测量学与测量工程]