广州抽水蓄能电站下库坝扬压力监测资料分析

Analysis of Uplift Pressure in the Lower Reservoir Dam Foundation of Guangzhou Pumped Storage Power Station

为了解广州蓄能水电厂下库坝的实际运行情况，对广州抽水蓄能电站下库坝扬压力纵横段面测点在2004-2006年间的观测资料进行了对比分析，同时利用统计模型分析了扬压力的影响因素。结果表明，广州抽水蓄能电站下库坝纵横断面的扬压力分布基本符合客观规律，帷幕及排水措施发挥的效果基本良好；扬压力主要受库水位影响较大，其他因素影响较小。

To evaluate the operating state of the lower reservoir dam in Guangzhou pumped storage power station, the observations about uplift pressure of the dam foundation from 2004 to 2006 were analyzed through comparison of measure points of cross section section. And then the influencing factors of uplift pressure were analyzed by using statistical model. The research indicates that distribution of uplift pressure of the darn foundation was basically in line with objective laws; the effect of anti-seepage curtain and drainage had a good interaction behavior; the uplift pressure of the dam foun dation was mainly influenced by the reservoir water level while other factors had little impact.