鲁地拉水电站枯木A滑坡非稳定渗流分析研究

Analysis and Study on Unstable Seepage of Landslide A at Kumu,Ludila Hydropower Project

计算分析了枯木A滑坡在布设排水孔等工程处理措施前后,滑坡体的流网变化情况及排水措施的效果;计算了在强降雨和水库蓄水2种情况下,设置排水措施前、后滑坡堆积体各分区的平均含水率等指标情况,分析了强降雨对计算结果的影响。计算结果表明,排水措施对降低滑坡体的饱和度和含水量是有一定效果的;相对强降雨而言,水库蓄水对滑坡体的影响更大。

Variatian of the seepage network of the landslide mass and effect of the drainage facilities befiJre and after such the engineering facilities as,provision of drainage holes in the Landslide A at Kumu are calculated and studied. In conditions of strong rainfall and reser- voir impoundment, the average moisture contents of zones of the landslide before and ＇after drainage holes are provided are calculated. Af- tbets on the calculation＇results by the strong rainfall are analyzed. The calculation and analysis results prove that the drainage facilities de- crease properly saturation and moisture content of the landslide mass. Compared with affect by the strong rainfall, the reservoir impound- ruent ＇affects seriously the landslide.