尼泊尔KGG水电站泄洪闸渗流及抗滑稳定分析

Seepage and Anti-sliding Stability Analysis of Discharge Sluice in KGG Hydropower Project in Nepal

尼泊尔KGG水电站工程泄洪闸座落在深厚透水冲积层上,利用GeoStudio软件按悬挂式防渗墙对闸基进行渗流分析,得到闸基渗流水头、渗透比降的分布规律和渗流量,并进一步分析水闸抗滑稳定性。结果表明,针对该类冲积层地层结构,采用本悬挂式防渗墙有效可行,且抗滑稳定性满足规范要求。

The discharge sluice in KGG Hydropower Project in Nepal is rested on a deep pervious alluvial foundation,which is treated with suspended cutoff wall.A seepage analysis is carried out with the GeoStudio software to get the distribution of the seepage water pressure,seepage gradient and seepage flow of the sluice foundation.Also,the anti-sliding stability of the sluice is analyzed.The results show that the suspended cutoff wall is effective and feasible for such alluvial foundation,and the anti-sliding stability requirement of the sluice is satisfied.