盐锅峡水电站左岸绕坝渗流持续上升成因分析

Cause Analysis of Consistently Increasing Bypass Seepage in Left Bank of Yanguoxia Hydropower Station

盐锅峡水电站大坝左岸绕坝渗流从建库以来一直呈持续上升趋势。依据长系列的孔水位、环境量及水质分析等监测资料,辅以抽水试验、注水试验、孔壁检查及水质分析等试验手段,分析了左岸绕坝渗流孔水位持续上升现象,阐述了其产生的原因,并给出了参考性的应对措施建议。

Since Yanguoxia dam was constructed, the bypass seepage in left bank always increases consistently. According to the long term monitoring data of the hole water level, the environment value and the water quality, this paper analyzes this abnormal phenomenon and clarifies its cause assisted by the pumping test, the pouring test, the pore wall checking and the water analysis. The referenced responding measures and advices are also put forward.