摘要
针对常规的土石坝表面变形监测方法速度慢、工作量大及监测信息无法与自动化系统实时共享等缺陷,在燕山水库大坝中采用高精度自动全站仪观测大坝变形,系统分析了折光系数并提出了大气折光修正模型。实例结果表明,该模型对三角高程测值的修正及竖向位移测量能较好地满足大坝安全监测的精度要求,可为研究及开发土石坝三维自动监测技术提供借鉴。
The conventional dam area deformation monitoring methods have following defects： slow speed, big work load and unable real time sharing with automatic system. In Yanshan Reservoir dam a high precision automatic system is used to observe dam distortion, systematically analyze diffraction model is proposed. Example results indicate that the tri- angle elevation value revision by this model, the vertical displacement measurement can better satify dam safety monitoring accuracy requirement. So it may provide a solution for studying and developing the earth-stone dam 3D automatic monitoring technology.
出处
《水电能源科学》
北大核心
2009年第6期66-68,共3页
Water Resources and Power
基金
河南省科技创新基金资助项目(YSSK-JS-JAQ-13)
宁波市2007年度重大科技攻关基金资助项目(2007C11003)
关键词
燕山水库
全站仪
大气折光
三维变形
监测
Yanshan Reservoir
total station
atmospheric refraction
three dimensional distortion
monitoring
