静力水准自动化监测系统在高拱坝运行监测应用

Application of Static Level Automatic Monitoring System in High Arch Dam Operation Monitoring

坝体沉降量是高拱坝运行监测的重要指标,行业内常用的观测方法为人工水准观测,在大坝各高程廊道布设水准点,用水准仪人工获取监测数据,此方法获取的监测数据精度较低,观测频次较低且人工投入较大。介绍一种静力水准自动化监测系统,此系统由振弦式传感器、储液罐、连通管、数据采集模块等部分组成,传感器测量精度高,稳定性强,测量频次可加密设置;并结合了其在某特高拱坝运行监测工程中的应用,对其水准监测数据进行对比分析,找出了监测数据变化规律,总结了该系统的应用优势以及运行维护过程中的相关注意事项。

The settlement of dam body is an important indicator for the operation monitoring of high arch dams.The commonly used observation method in the industry is artificial level observations.The bench mark are set in the elevation corridor of dam.The monitoring data is manually obtained by level gauge.The accuracy of the monitoring data obtained by this method is lower,the frequency of observation is lower and the labor input is larger.This paper introduces a static level automatic monitoring system,which is composed of vibrating wire sensor,liquid storage tank,connecting pipe and data acquisition module.The sensor has high measurement accuracy,strong stability,and the measurement frequency can be encrypted.Combined with its application in an ultra-high arch dam operation monitoring project,the level monitoring data are compared and analyzed,and the monitoring is found out This paper summarizes the application advantages of the system and the related matters needing attention in the process of operation and maintenance.