安康水电站大坝安全监测系统有关问题探讨

Discussions on some problems of dam safety monitoring system of the Ankang Hydropower Station

安康水电站混凝土重力坝安全监测系统已运行多年 ,实际运行情况揭露了设计中存在的问题 ,如视准线观测法理论和实践运用的差距 ,大地四边形设计中对通视考虑不足等。电厂经过研究决定 ,对安全监测系统进行更新改造 ,先后对变形监测系统、扬压力监测系统、绕坝渗流系统、静力水准系统等进行了改造 ,效果较好。目前观测系统自动化正在逐步实施。

The safety monitoring system of the gravity concrete dam for the Ankang Hydropower Station has been operated for many years. The actual operation found many problems in the design, such as the difference between the theory and its practice of the collimating line observation method, and the intervisibility problem in the geodetic quadrilateral design. Upon study, the Plant decided to renew and improve the existing safe monitoring system, such as deformation monitoring system, uplift pressure monitoring system, by pass seepage monitoring system, static level system, etc. These systems have been improved and good effectiveness has been gained. At present, the automation of observation system is being gradually implemented.