溪洛渡高拱坝泄洪振动监测系统设计及应用

Flood Discharge Vibration Monitoring System Designing and Application in Xiluodu High Arc Dam

为掌握高拱坝坝身泄洪时坝身的振动特性、坝体不同部位加速度、振幅等情况,结合溪洛渡双曲拱坝的运行工况特点,研究设计了泄洪振动在线监测系统。通过实时监测大坝泄洪期间的关键效应量数据,分析了坝体动力特性参数和工作性态,以此确定受泄洪振动影响显著的部位,为评价泄洪振动对水工建筑物的影响程度提供了技术支撑。

In order to master the vibration characteristics,acceleration and amplitude of different parts of the high arch dam body during flood discharge,combined with the operation characteristics of Xiluodu double curvature arch dam,the online monitoring system of flood discharge vibration is studied and designed.Based on the real-time monitoring of the key effect value data during the flood discharge period of the dam,the dynamic characteristic parameters and working behavior of the dam body are analyzed,so as to determine the parts significantly affected by the flood discharge vibration,which provides technical support for the evaluation of the impact degree of the flood discharge vibration on the hydraulic structures.