秩亏自由网平差在地铁隧道保护区中的应用  

Rank Defect Free Network Adjustment in Metro Tunnel Protected Areas

作　　者：苏小文[1] 李志静[1] 黄浩[1] 

机构地区：[1]江苏省交通规划设计院股份有限公司,江苏南京210009

出　　处：《测绘与空间地理信息》2016年第9期180-181,185,共3页Geomatics & Spatial Information Technology

摘　　要：地铁隧道保护区沉降监测网中包含多个基准点,依据不同基准点平差所得结果也不相同。本文引入秩亏自由网平差方法,将所有基准点视为待定参数进行平差,并通过工程实例,验证此方法在地铁隧道保护区沉降观测中有一定的适用性。Subway tunnel subsidence network of protected areas contains a plurality of reference points,depending on the reference point adjustment results obtained are not the same.This paper introduces Rank Defect Free Network Adjustment Method,in which all datum points are regarded as undetermined parameters.And it has been shown to have some applicability in subway tunnel sanctuary settlement observation by Projects.

关 键 词：地铁隧道保护区 基准点 秩亏自由网平差 

分 类 号：P258[天文地球—测绘科学与技术] TU196[建筑科学—建筑理论]