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一般应力状态下挡土墙上主动土压力研究

, PP. 25-29

Keywords: 道路工程,挡土墙,Lade-Duncan破坏准则,主动土压力,平面应变状态

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Abstract:

?将Lade-Duncan破坏准则应用于求解挡土墙上的主动土压力,在平面应变状态下,通过在π平面上采用与Lade-Duncan破坏准则等效面积的Drucker-Prager破坏准则,且借助等效内摩擦角的概念,提出了计算挡土墙上主动土压力的新方法,并与传统的库仑法、朗肯法和有限元数值模拟等计算结果进行了比较。结果表明:该方法计算过程简便,计算结果准确,是计算挡土墙上主动土压力的合理方法,有一定的工程实用价值。

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