基于损伤塑性理论的隧道衬砌结构开裂破坏的数值分析

Numerical Analysis of Cracking in Lining Structure of Tunnel Based on Damage Plasticity Theory

  • 摘要: 基于混凝土材料的损伤塑性理论,建立了公路隧道结构的非线性模型,并利用大型工程模拟的有限元软件ABAQUS对所建立的模型进行计算分析,较真实地揭示了运营公路隧道衬砌结构开裂破坏的机理,得到了在山体塌陷、围岩偏压作用下隧道衬砌结构损伤值、应力的分布特性和规律

     

    Abstract: Based on the damage plasticity theory of concrete, a realistic nonlinear model of highway tunnel structure was established. The calculations and analysis were carried out by ABAQUS which is large finite element software. The calculation results revealed the mechanism of cracking in lining structure of the highway tunnel. Furthermore, the distribution characteristics and laws of damage value, and stress of the lining structure under collapse rock and surrounding rock bias were obtained

     

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