摘要
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。
The monitoring and controlling network of Dagangshan Hydropower Station is the datum of outer deformation monitoring,so the accuracy of point position should be high.The layout scheme of horizontal and vertical displacement monitoring network,embedding way of monitoring points and monitoring process are introduced and the monitoring results are evaluated.Through analysis of the results of 4 times＇ monitoring,the accuracy of the weakest point in horizontal displacement monitoring network meet the designed requirement;the accidental mean square error of vertical monitoring network fulfill the demand as well.The practice show that the stable embedding of measuring points,advanced devices,normative operation and arranging the inverse plummet to test the stability of the datum are effective ways of obtaining monitoring results of high accuracy.
出处
《人民长江》
北大核心
2011年第14期99-101,共3页
Yangtze River
关键词
监测控制网
建网方案
成果精度
大岗山水电站
monitoring and controlling network
network establishing scheme
accuracy of monitoring results
Dagangshan Hydropower Station
