ESTIMATE OF SLOPE DYNAMICAL STABILITY BASED ON EARTHQUAKE RESPONSE ANALYSIS
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摘要: 对某一特定的边坡计算模型,采用数值计算方法进行边坡地震响应分析,比较坡体内各点及地面参考点的地震响应,可以获得边坡体的地震加速度峰值放大系数;将加速度放大系数与地面设计加速度的乘积作为该点的水平加速度,采用数值计算方法计算得到边坡的最危险应力状态;拟定系列潜在滑面,分析潜在滑面的安全系数,以评价边坡的地震动力稳定性。Abstract: The magnifying coefficient of earthquake acceleration peak value could be obtained,using numeric calculation method to analyze the earthquake response and compare inner points with ground reference ones in earthquake for a certain slope model.The most dangerous stress state of the slope could be obtained,using numeric calculation to multiply the acceleration magnifying coefficient by ground designed acceleration as the level acceleration of a point.In order to estimate the earthquake dynamic stability of a slope,the potential sliding faces were enacted and their safety factors were analyzed.
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Key words:
- slope /
- earthquake response /
- dynamic stability
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