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Volume 31 Issue 2
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YANG Le, XIANG Wenhua, WU Delun, XIE Guihua. Application of Cosserat theory to FEM analysis of cavern in interlayered rock mass[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 218-222.
Citation: YANG Le, XIANG Wenhua, WU Delun, XIE Guihua. Application of Cosserat theory to FEM analysis of cavern in interlayered rock mass[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 218-222.
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Application of Cosserat theory to FEM analysis of cavern in interlayered rock mass

  • 1. College of Civil Engineering Chongqing University Chongqing 400045 China 2. Chongqing Institute of Geology and Mineral Resources Chongqing 400042 China 3. Chongqing Research Design Institute of Sino Coal International Engineering Group Chongqing 400016 China 4. China CTDI Engineering Corporation Chongqing 400039 China

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  • Published Date: February 15, 2009
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  • The Cosserat continuum theory considering the influence of deformation characteristic of media by coupled stress can reflect the bending deformation of the layered materials. The basic principle of the Cosserat continuum theory and its expanded constitutive model are introduced firstly, and the Mohr-Coulomb plastic yield criterion for the new model is deduced. Then the FEM program is written by use of Matlab system and applied to the stress analysis of the underground cavern in layered rock mass. The FEM program is proven to be effective, and the Cosserat expanded model which complements the parameter equivalent method is one of effective methods for solving interlayered rock mass question.
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