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岩质边坡在莫尔-库仑准则下的等效强度参数反演 被引量:1

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摘要 对于岩质边坡,其适用的Hoek-Brown准则在应用极限平衡方法时会遇到不便。因此获得其莫尔-库仑准则下的等效强度参数是重要的工作。利用塑性力学极限分析原理,建立了对数螺旋线形状的机动容许速度场,推导了重力做功及边坡内部的能量耗散功率的表达式,并结合切线法与强度折减法,求得其安全系数。根据不同粘聚力c以及内摩擦角φ下的安全系数变化情况,得到其等效的c-φ曲线,并据此进行参数反演。所得结果表明,此方法是可靠有效的。
作者 吴敏之
出处 《中外公路》 北大核心 2014年第3期35-37,共3页 Journal of China & Foreign Highway
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