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基于逆可靠度方法的边坡稳定性分析

, PP. 43-48

Keywords: 道路工程,边坡稳定性,逆可靠度,目标可靠度指标,失效风险

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Abstract:

从工程稳定逆可靠度设计思路出发,解析了基于一次逆可靠度的工程结构稳定性分析程序;将该分析程序与常用的边坡稳定毕肖普法分析模式相融合,推导出基于逆可靠度的边坡稳定安全系数及相关参数计算公式,构造出基于逆可靠度的边坡稳定分析方法,利用该方法求解出的边坡稳定安全系数既可以考虑边坡参数不确定性对其的影响,又能满足边坡设计的目标可靠度水平;最后通过工程实例,阐述该方法的具体实施过程,分析了相关因素对边坡稳定的影响程度,并论证该方法的合理性与可行性。

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