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大岗山水电站监测控制网布设综述

Yangtze River(2011)

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Abstract
大岗山水电站监测控制网是水电站外部变形监测的基准,点位精度要求较高。介绍了控制网的布置方案(包括平面位移监测网和垂直位移监测网)、网点埋设方式和观测实施过程,并对监测控制网监测成果的精度进行了评价。对4次监测成果的分析表明,平面位移监测网最弱点位精度均满足设计要求;垂直监测网每千米水准测量高差中数的偶然中误差也满足测量规范要求。实践表明,稳定的网点埋设、先进的测绘设备、规范操作、对起算基准布置倒垂系统进行基准稳定性检测是获得高精度监测成果的有效手段。
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Key words
accuracy of monitoring results,Dagangshan Hydropower Station,network establishing scheme,monitoring and controlling network
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