摘要
在水电站建设过程中,坝址区周边边坡的稳定性状况一直是各部门非常关心的重要问题之一。在对黄河上游某水电站库区滑坡进行现场调查的基础上,利用FLAC-3D软件对其在不同蓄水条件下的稳定性进行了数值模拟研究。研究结果表明:在上围堰水位2 800 m时,滑坡前缘局部可能发生垮塌;在蓄水位达到初期蓄水位高程2 925 m时,滑坡体变形明显增加,滑坡稳定性有所恶化;当达到正常蓄水位高程2 990 m时,滑坡变形进一步加剧,但滑坡整体处于基本稳定状态。
The slope stability situation surrounding the dam site area is very important to each correlative department during constructing hydroelectric power station. The stability of landslide is studied by means of FLAC-3D numerical simula- tion under different impounding conditions based on the field investigation of a hydroelectric power station reservoir area in the upper yellow river. The results show that the partial collapse of landslide leading edge may occur when the cofferdam water level is 2800m, the landslide deformation significantly increase and landslide stability deteriorate to some extent when the water level reaches the initial water level elevation of 2925m. The landslide deformation has been further exacerbated when it reaches the normal water level elevation of 2990m, but the landslide is still stable overall.
出处
《四川理工学院学报（自然科学版）》
CAS
2015年第6期83-86,共4页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
国家自然科学基金项目(41072229)
