摘要
由于受基坑开挖所产生的卸载和基坑降水的影响,临近地铁隧道的受力条件将改变,造成地铁隧道的变形和位移。采用自动化技术实时监测地铁隧道的变形,对保证地铁运营安全至关重要。文中结合广州大马站商业中心项目基坑开挖对临近运营地铁1号线隧道结构变形位移自动监测工程项目的实践,对自动全站仪监测系统在地铁隧道监测方面的系统构建、测量方法、测量精度、监测效果等方面进行论述。实际应用表明,该系统以高精度、自动化的优势,及时提供可靠的动态监测数据,科学指导基坑施工,保证了地铁运营安全,取得良好的效果。
The mechanic change of metro tunnel influenced by unloading and dewatering due to adjacent foundation pit, results in deformation and displacement of the metro tunnel. Deformation monitoring based on auto system is important for safe operation. Associated with the project of Guangzhou Damazhan business center foundation pit,it presents a robotic total station monitoring system including the composition, surveying method, surveying precision and surveying effect on monitoring deformation of metro tunnel. The actual application shows that auto monitoring system provides feasible survey data in time based on the high precision and automatization, and obtains the effectiveness.
出处
《测绘工程》
CSCD
2007年第2期47-50,共4页
Engineering of Surveying and Mapping
关键词
地铁变形
基坑工程
自动全站仪
自动监测
deformation of metro tunnel
project of foundation pit
robotic total station
automatic monitoring
