【摘要】 渗流会影响坝体稳定性,对大坝渗流监测资料进行研究和评价对研究坝体的稳定性十分重要。该文通过对南欧江水电站大坝坝基扬压力、坝体渗流量、绕坝渗流分析表明,大坝防渗效果显著,帷幕后渗压水位明显下降,坝体和坝基总渗流量逐年减小,大坝防渗性能提高。对坝基扬压力进行回归分析,结果表明,大坝扬压水位主要受上游水位、时效作用的影响。更多还原

【Abstract】 The seepage will affect the stability of dam. It is very important to study the dam stability by studying and evaluating the seepage monitoring data. In this paper,through analysing the uplift pressure of the dam foundation,the seepage flow of dam and the seepage around dam of Namou River Hydropower Station,the seepage prevention effect of the dam is remarkable,the seepage pressure level decreases obviously after curtain grouting,the total seepage flux of dam and dam foundation decreases year by year,and the dam impervious performance is improved. The regression analysis of dam foundation uplift pressure shows that the uplift pressure level of the dam is mainly affected by the effect of upstream water level and aging effect.更多还原