NJG型真空激光准直系统在炳灵大坝监测中的应用

Application of NJG Vacuum Laser Alignment System in the Monitoring of Bingling Dam

介绍了NJG型真空激光准直系统工作原理、系统组成、系统布置、主要性能及技术指标。该系统在炳灵水库蓄水初期大坝变形监测中及时准确地反映了大坝位移变化情况,初步取得了良好效果,说明应用NJG型真空激光准直法监测大坝变形,能够实现水平和垂直位移同步自动监测,精度较高,故障率较低,便于维护,具有推广价值。

This paper describes the working principles, composition and arrangement of system, main performanees and technical index of the NJG vacuum laser alignment system. Such system which was applied to the deformation monitoring of Bingling dam during initial impoundment period can reflect timely and accurately the displacement of dam and achieved preliminarily good effectiveness. The conclusion is that the application of NJG vacuum laser alignment system to dam deformation monitoring can realize the automatic synchronous monitoring of horizontal and vertical displacements and it has high precision and low failure rate, convenient for maintenance, so it is worth popularizing.