Continuum models with microstructure for discontinuous rock mass

机译：具有不连续岩体微观结构的连续体模型

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The discontinuous structure of layered or blocky rock is approximated by an equivalent Cosserat continuum. This implies the introduction of couple stresses and internal rotations which model the relative rotations between blocks and the bending stiffness of the layers. The advatage of the Cosserat homogenisation is also that various failure modes such as inter-block slip, block tilting, layer bending can be easily described through a multi-criteria plasticity model. This model is illustrated by two applications to geotechnical problems such as foundation in blocky rock and slope stability in foliated rock.

机译：层状或块状岩石的不连续结构由等效的Cosserat连续体近似。这意味着引入了耦合应力和内部旋转，它们对块之间的相对旋转和层的弯曲刚度进行了建模。 Cosserat均质化的优势还在于，可以通过多标准可塑性模型轻松描述各种破坏模式，例如块间滑动，块倾斜，层弯曲。该模型通过对岩土工程中的两个应用进行了说明，例如块状岩石的地基和叶状岩石的边坡稳定性。

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《Fifth International Conference on Analysis of Discontinuous Deformation, ICADD-5 Oct 6-10, 2002 Beer Sheva, Israel》|2002年|p.215-223|共9页
会议地点 Beer Sheva(IL);Beer Sheva(IL)
作者
J. Sulem; V. De Gennaro; M. Cerrolaza;
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作者单位

CERMES, Ecole Nationale des Ponts et Chaussees-LCPC, Paris, France;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
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Continuum models with microstructure for discontinuous rock mass

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