岩质斜坡复杂块体稳定性评价研究

Studies on Evaluation of Complicated Block Stability on Rockmass Slope

复杂块体具有多滑面、三维空间分布的特点。利用“等K法”进行刚体极限平衡分析的思路,将“等K法”延伸到三维空间。通过把复杂块体的多滑面、三维空间问题分解为若干子块的平衡;把复杂块体转换为若干楔体、及平面问题,使复杂问题简单化。根据这一思路,我们分析了某水电站库区高边坡复杂块体稳定性,工程实践证明,所建模型实用性较强。

The complicated block have many characteristics such as too many sliding surfaces and distributing in threedimensional space. The idea which make use of equivalence K method analysis rigid body limit equilibrium method,extend equivalence K method in three-dimensional space. Much passes to the complicated block questions of too many sliding surfaces and distributing in three-dimensional space resolve for equilibrium of some pieces;transform complicated block problem into some of cuneiform, flat surface problems ,and the complicated problem turns in brief. According to that method, the stability of high slope of the hydroelectric power station in reservoir area is analyzed, the engineering practices prove that the model function set up is effective.