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两相介质大变形动力问题的数值模拟

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Indexed by:期刊论文

Date of Publication:2007-12-25

Journal:工程力学

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:24

Issue:12

Page Number:47-52

ISSN No.:1000-4750

Key Words:土力学;数值模拟;两相介质;大变形;饱和土

Abstract:基于Biot理论和u-p列式,推导了两相介质动力问题的控制方程.固相的位移和液相孔隙压力是两个基本的未知量.采用更新的Lagrangian方法和Jaumann应力对这一耦合问题进行了大变形分析.用建议的方法,对一饱和土柱在静力和动力荷载作用下的反应进行了数值模拟,并对大、小变形理论下的计算结果进行了对比.

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