渗流作用下边坡最危险圆弧滑面的优化解  

ACCURATE SOLUTION OF MOST DANGEROUS CIRCLE SLIP SURFACE IN SEEPAGE SOIL AND ROCK MASS

作　　者：徐东强[1] 姜芳禄[1] 赵晓艳[1] 黄竞[1] 

机构地区：[1]河北工业大学,天津300132

出　　处：《工程力学》2005年第5期214-217,共4页Engineering Mechanics

摘　　要：分析地下水渗流对岩土边坡稳定性的影响,推导了透水边坡在地下水渗流条件下边坡稳定系数的解析表达式,采用非线性规划中的变尺度方法,求出最危险圆弧滑动面的位置。在高孔隙水压力条件下,采用简单条分法(W.Fellenius)和变尺度法首先确定最危险圆弧滑面的位置,然后,再利用严格解的Spencer方法或Morgenstern-Price方法,求最危险滑面的稳定系数。计算了某工程路堑边坡稳定系数和渗流对边坡稳定性的影响系数。The influence of groundwater seepage on stability of soil and rock slope is analyzed. The analytic solution of stability of water-penetration soil and rock slope is set up under ground water seepage. The most dangerous circle slip surface is located with DFP change-scale method of nonlinear programming. In the condition of high pore-hydraulic pressure, the most dangerous circle slip surface is located with Fellenius Method and DFP change-scale method. Then the safety factor of the most dangerous circle slip surface is evaluated with Spencer method or Morgenstern-Price method. The influence coefficient of seepage on slope stability is calculated in a cutting slope.

关 键 词：岩土工程 边坡 渗流 稳定性 变尺度法 

分 类 号：TU432[建筑科学—岩土工程]