地铁隧道保护区水平位移监测方法的研究

摘要

介绍一种在狭长的地铁隧道环境下基于边角后方交会的自由设站测量方法,阐述方法的原理,推导计算公式,结合在南京地铁隧道保护区监测水平位移测量的具体应用实例,分析方法的测量精度,证明方法在此类狭长条件下进行测量的可行性和可靠性.%It introduces a method based on edge resection of a free standing measurement in the environment of long and narrow metro tunnel.Then it expounds the principle of this method,and deduces the formula.At last combining with a specific example of monitoring horizontal displacement measurement in Nanjing subway tunnel reserve,it analyzes the measurement precision of this method,which proves that this measurement method is feasible and reliable in such long and narrow conditions.