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首页> 外文期刊>Mathematical Problems in Engineering >A Compressive Damage Constitutive Model for Rock Mass with a Set of Nonpersistently Closed Joints under Biaxial Conditions
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A Compressive Damage Constitutive Model for Rock Mass with a Set of Nonpersistently Closed Joints under Biaxial Conditions

机译：双轴条件下具有一组非永久闭合节理的岩体压缩损伤本构模型

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摘要

One of the most problems faced by the practical rock engineering is to evaluate the rock mass strength. Now the existing theoretical evaluation of the mechanical property of jointed rock mass has no satisfactory answer yet because of the great number of variables involved. One of them is the nonpersistent joints which inherently affect the rock mass mechanical behavior. The previous models for rock mass can only reflect the effect of joint geometrical property on its mechanical behavior. Accordingly, this paper presents a new theoretical model to evaluate the mechanical behavior of the rock mass with a set of nonpersistently closed joints under biaxial conditions, which can reflect the effect of both the joint geometrical and mechanical property on the mechanical behavior of the rock mass under biaxial conditions at the same time. A series of calculation examples validate that the proposed model is capable of presenting the effect of joint geometrical and mechanical properties and the confining pressure on rock mass strength at the same time.
机译：实际岩石工程面临的最大问题之一是评估岩体强度。现在，由于涉及大量变量，对节理岩体力学性能的现有理论评估还没有令人满意的答案。其中之一是非持久节理，其固有地影响岩体的力学行为。以前的岩体模型只能反映节理几何特性对其力学行为的影响。因此，本文提出了一种新的理论模型，以评估在双轴条件下具有一组非永久闭合节理的岩体的力学行为，该模型可以反映节理的几何和力学性质对岩体力学行为的影响。在双轴条件下同时进行。一系列计算实例验证了所提出的模型能够同时呈现节理的几何和力学性能以及围压对岩体强度的影响。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第5期|136971.1-136971.10|共10页
  • 作者

    Liu Hongyan; Yuan Xiaoping;

  • 作者单位

    Tibet Univ, Sch Engn, Lhasa 850000, Xizang, Peoples R China.;

    Ecole Normale Super, CNRS, Geol Lab, F-75005 Paris, France.;

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  • 正文语种 eng
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