Dam-Break Risk Analysis and Process Simulation of Pumped Storage Power Station-Take Ruoqiang Pumped Storage Power Station as an Example
In response to the lack of research and methods related to the risk analysis and dam-break simulation in pumped storage power stations,this article takes the Ruoqiang pumped storage power station in Xinjiang as an example,uses FMECA method,event tree method to analyze the probability and risk of dam-break,and uses MIKE model to simulate dam break floods.The results indicate that the main risk factors leading to dam-break of the upper and lower reservoirs in this project are surface rupture of the seismic fault and super strong earthquakes;The risk level of dam-break for the upper and lower reservoirs is Ⅳ low risk.This paper proposes potential damage paths for the dam-break of the Ruoqiang pumped storage power station and sets up 9 dam-break schemes to simulate and analyze the dam-break floods of the upper and lower reservoirs.Based on the characteristics of double reservoir excavation and no obvious river channel downstream of the reservoir basin in the Ruoqiang pumped storage power station,a dam failure risk analysis and dam-break process simulation method suitable for similar projects is proposed,providing reference for the analysis of dam-break floods in similar pumped storage power stations,and providing technical support for improving the ability of power stations to cope with dam break events,developing scientific dam emergency management plans and risk response measures.
pumped storage power stationsdam-break riskprobability of dam-breakFMECA methodevent tree method
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