摘要
水库库岸滑坡是水利水电工程中常出现的重大工程地质问题之一,库岸滑坡集普遍性、危害性和特殊性于一体,深入研究其诱发机理及变形破坏特征,对评价滑坡的稳定性以及制定经济有效处理措施具有重大意义.本文针对库岸边坡在库水位陡降时易发生失稳破坏的特点,分析了库水诱发滑坡的破坏机制,并运用数值模拟方法对某库岸边坡工程进行分析,验证了所得结论:边坡岩土体因饱水软化作用,其滑动面的力学参数数值降低;库水的浮托力在某种程度上又有利于边坡的稳定;而当库水位陡变时,坡体内产生的渗透力又容易导致边坡失稳.
Failure of bank slopes is the serious problem of engineering for its popularity, harmtutness anct particularity. In allusion to the characteristic of easily losing stability for reservoir slopes when water level descending rapidly, the mechanism of losing stability resulting from ground water for reservoir slopes is analyzed. And a slope project is illustrated in this essay. Its stability is analyzed with FLAC^3D and a valuable conclusion is drawn that the resisting force of potential sliding face decreases due to softening, that the buoyancy at a certain extent helps to enhance the stability of slopes, and that the seepage force in slope body is a key factor resulting in a slope losing its stability.
出处
《武汉工程大学学报》
CAS
2007年第2期27-30,共4页
Journal of Wuhan Institute of Technology
作者简介
熊征（1982-），女，湖北宜昌人，硕士研究生．研究方向：地质灾害和边坡稳定。
