水库蓄水对移民安置场地稳定性影响分析

以毛尔盖水库的移民安置场地及场地后缘公路外侧边坡为研究对象,介绍了库区蓄水后其变形范围及特征,结合室内试验和数值分析等手段,经过变形破坏机制分析发现,在坡脚得到效防护的条件下,蓄水后先变形的是边坡上部后缘的公路外侧边坡,其变形破坏导致边坡前缘场地产生变形。同时,通过对蓄水、蓄水叠加暴雨和蓄水叠加地震作用下公路外侧边坡的稳定性分析,得出不同工况下安全系数降幅的规律。研究成果可为同类工程研究提供参考。

Analysis of the Impact of Reservoir Water Storage on the Stability of the Immigrant Resettlement Site

The resettlement site of Mo''ergei Reservoir and the outer slope of the adjacent highway were investigated to explore the deformation range and characteristics of the reservoir area after impoundment. By combining laboratory tests and numerical analysis, the deformation failure mechanism was analyzed. It Is found that, under the condition of effective protection at the foot of the slope, the initial deformation occurrs in the outer slope of the highway at the upper rear edge after reservoir impoundment, leading to deformation in the front edge of the site. Additionally, the stability of the highway''s outer slope under different conditions, including reservoir impoundment, reservoir impoundment combined with heavy rainfall, and reservoir impoundment combined with seismic events, was analyzed to determine the variation pattern of safety factors under different working conditions. The results can serve as a reference for similar engineering projects.