西安城市轨道交通工程控制网点稳定性分析

摘要

西安地区特殊的区域地质的构造活动、地裂缝活动及地面沉降的叠加严重影响了城市轨道交通工程测量工作。城市轨道交通工程建设工期长，地面控制网受城市建设、轨道交通工程施工的影响，点位容易破坏和失稳。本文结合工程建设实际，对西安市城市轨道交通工程控制测量的影响因素进行了分析，提出了解决措施。%Urban rail transit engineering survey has been seriously affected by tectonic activities,special regional ge-ology,ground fissures and land subsidence in Xi'an. Urban rail transit engineering construction takes a long time,and the ground control network is influenced by urban construction,Urban rail transit engineering construction,it often leads to destruction and instability of the control point. The paper,combined with the actual construction,analyzes the influence factors of measurement and control of urban rail transit engineering,puts forward the solving measures.