静力水准测量系统在既有地铁隧道监测中的应用  

APPLICATION OF STATIC LEVELING SYSTEM IN EXISTING SUBWAY TUNNEL MONITORING

作　　者：董珍 梅刚 王思雨 易俊松 Dong Zhen;Mei Gang;Wang Si-yu;Yi Jun-song

机构地区：[1]北京环安工程检测有限责任公司,北京100020

出　　处：《建筑技术开发》2024年第9期92-95,共4页Building Technology Development

摘　　要：研究对静力水准监测系统的原理、优势、安装、调试和数据采集进行了分析,并对既有地铁隧道静力水准监测精度等影响因素进行了介绍和分析。以某项目基坑施工期间对既有地铁隧道区间静力水准测量系统监测为背景,采用与人工监测数据相对比的方法对静力水准测量系统的可靠性进行了验证;同时,通过比较列车静止与运形时静态水准仪的测量精度,探讨了列车行驶对测量结果的影响。研究发现,静态水准仪自动化监测系统完全能够达到城市地铁运行时实时监测隧道形变的精确度要求,故显示出较强的实用价值。通过静态水准仪获取的数据与人工测量的数据做对比研究,可以得出两者的监测成果基本一致,对变形情况的判定高度吻合。对于精度高的工程监测而言,选取列车停运后监测值作为监测值更可靠。This study introduces and analyzes the principle,advantages,installation,debugging,data acquisition and analysis of static leveling monitoring system and the influencing factors of static leveling monitoring accuracy in existing subway tunnels.Combined with the monitoring example of static leveling system in existing metro tunnel section during the foundation pit construction of a project,the reliability of static leveling system is verified by comparing with manual monitoring data.At the same time,the influence of train running on the measurement results is discussed by comparing the measuring accuracy of the static level when the train is at rest and when it is running.It is found that the automatic monitoring system of static level can fully meet the accuracy requirements of real-time monitoring of tunnel deformation during the operation of urban subway,which shows a strong practical value.By comparing the data obtained by static level and the data measured manually,it can be seen that the monitoring results of the two are basically consistent,and the determination of deformation is highly consistent.For engineering monitoring with higher precision,it is more reliable to select the monitoring value after train shutdown as the monitoring value on the same day.

关 键 词：静力水准仪 自动化监测 运营地铁区间 测量精度 

分 类 号：TU198.7[建筑科学—建筑理论]