城市地铁水平位移测量方法及精度分析  

Horizontal Displacement Measurement Method and Accuracy Analysis in Urban Subway

作　　者：谢向进 

机构地区：[1]新疆交通规划勘察设计研究院,新疆乌鲁木齐830006

出　　处：《城市勘测》2013年第4期138-141,共4页Urban Geotechnical Investigation & Surveying

基　　金：新疆维吾尔自治区自然科学基金(2012211B56)

摘　　要：针对狭长的地铁隧道空间内控制点不易通视、网形结构不佳、不宜进行转站等问题,采用基于边角联合后方交会的自由设站法进行地铁隧道水平位移的测量,方便、灵活,并通过对某地铁隧道监测实例进行计算分析,验证了该方法的有效性,可以满足地铁隧道水平位移变形监测的精度要求。该方法同时也适用于类似狭长呈带状的测量工程中,具有较好的应用前景和推广价值。In response to the problems of bad intervisibility conditions between control points,poor network structure,as well as difficult to change stations,the paper puts forward using the Free Station method which based on SideAngle Resection for the horizontal displacement measurement of subway tunnel.It is more convenient and flexible.Through the calculation and analysis of an instance of a subway tunnel,it is verified that the method is not only effective but also can meet the accuracy requirements of the subway tunnel horizontal displacement deformation monitoring.This method can also be applied to similar long and narrow surveying engineering.It has good application prospects and is worthy to be popularized.

关 键 词：地铁隧道 水平位移 自由设站法 精度分析 狭长测量条件 

分 类 号：P258[天文地球—测绘科学与技术]