泰山抽水蓄能电站上库坝面板周边缝变形分析

Analysis on deformation at peripheral joints on face slab of the upper reservoir rockfill dam of Taishan pumped storage power station

山东泰山抽水蓄能电站上库挡水坝采用钢筋混凝土面板堆石坝,库盆防渗型式选择钢筋混凝土面板与高密度聚乙烯土工膜及垂直防渗相结合的综合防渗方案。周边缝的稳定与否决定了上库坝的安全状态,综合三向测缝计监测成果和渗流、堆石体流变等因素,对大坝面板周边缝的变形情况进行了分析,为了解面板坝周边缝以及大坝面板变形规律有一定的参考意义。

The upper reservoir of Shandong Taishan pumped storage power station adopts concrete face rockfill dam and the combination of reinforced concrete face slabs, high density polyethylene geomem- brahe and vertical seepage prevention measures is employed in seepage control of the reservoir basin. Stability of peripheral joints decides the safety of upper reservoir. Based on the monitoring data of 3-di- rection joint meter, seepage and creeping of rockfill, this paper analyzes the deformation of peripheral joints to understand the deformation rules of peripheral joints and face slab.