铜锣径水库主坝GNSS表面变形监测系统设计与应用

Design and Application of GNSS Surface Deformation Monitoring System for Main Dam of Tongluojing Reservoir

土石坝的填筑材料具有离散性、非刚性等特点,使得坝体变形有非一致性。库水位的频繁波动使得掌握水库大坝变形性态更加重要。建立使用GNSS表面监测系统进行坝体表面变形监测能够弥补依赖全站仪、水准仪等传统监测手段效率低、恶劣天气无监测数据的缺点。介绍了铜锣径水库GNSS表面变形监测系统设计方案,验证了GNSS监测系统的精度,表明GNSS监测系统精度能够满足规范要求,可以实现抽蓄电站大坝全天时、全天候、高精度监测要求,对于实现水库大坝安全监测信息化具有重要意义。

The filling material of earth-rock dam has the characteristics of discrete and non-rigid,which makes the deformation of the dam body inconsistent.The frequent fluctuation of reservoir water level makes it more important to master the deformation behavior of reservoir DAMS.The establishment of GNSS surface monitoring system for dam surface deformation monitoring can make up for the shortcomings of relying on traditional monitoring means such as total station and level,such as low efficiency and no monitoring data in bad weather.The design scheme of GNSS surface deformation monitoring system for Tongluojing Reservoir is introduced in this paper,and the accuracy of GNSS monitoring system is verified.It shows that the accuracy of GNSS monitoring system can meet the standard requirements,and can realize the requirements of all-day,all-weather and high-precision monitoring of the dam of the pumping and storage power station,which is of great significance for realizing the information technology of reservoir dam safety monitoring.