边坡整体和局部失稳的风险研究

边坡失稳可分为整体滑动和局部失稳两种情况，传统分析计算方法多通过单一的安全系数来衡量边坡失稳的风险，难以充分考虑不同边坡的破坏风险。针对边坡问题的复杂性，提出非均质边坡和岩质边坡的失稳风险应通过由整体安全系数和局部安全系数组成的区间来衡量，并采用强度折减的方法和数值程序进行具体的安全系数计算。通过边坡实例研究表明，所提出的方法能充分反映边坡发生不同程度破坏的可能性，得到的安全系数区间更加可靠。

Study on risk of entire and partial of slope failure

Slope failure can be divided into entire slide and local buckling.The collapse risk of slope was judged by investigate safety factor in traditional method,but it was hard to consider the failure risk of slope in different grades.For the complexity of the slope problem,safety factor interval with entire safety factor and local safety factor was applied to research the failure risk of rock slope and heterogeneous slope.The strength reduction method and numerical code were used to compute the maximal and minim...