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工程力学  2014 

基于离散元和有限差分耦合算法的崩塌体和结构碰撞预测分析

DOI: 10.6052/j.issn.1000-4750.2013.09.0894, PP. 32-39

Keywords: 崩塌,离散元方法,有限差分方法,耦合算法,压缩试验

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Abstract:

采用离散元和有限差分耦合计算方法,对龙洞子崩塌挡墙结构碰撞进行了预测分析。构建了3种崩塌挡墙结构模型,并进行了数值模拟。崩塌体由颗粒模拟,挡墙分别由刚性墙、颗粒、FLAC中的实体单元模拟。基于离散元和有限差分耦合算法的数值模拟,分析了不同模型的挡墙动力响应和变形。通过数值模拟结果的对比分析,选出了最优的结构模型和参数,为有效防御崩塌的防护结构设计提供理论依据。

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