›› 2005, Vol. 26 ›› Issue (12): 1901-1906.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical test on staged damage evolution of underground stope in construction

LIU Ting-jin, MO Hai-hong   

  1. Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2004-06-05 Online:2005-12-10 Published:2014-01-12

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Abstract: An elastoplastic anisotropic damage numerical model for rock is established by adopting Mohr-Coulomb criterion as the shearing yield condition, ultimate strain as the shearing damage criterion, and maximal tensile stress as the tension damage criterion. The staged damage evolution of underground stope is emphatically numerically studied in the construction process with supporting structure and without supporting structure; and the deformation field of underground stope is also numerically calculated on the supposing that rock as an elastic material. The numerical test reproduces the staged damage evolution of underground stope in the construction process; and it provides a means to optimize the design and construction process of underground stope, to effectively prevent and control some engineering accidents such as collapse.

Key words: damage criterion, elastoplastic, anisotropic damage, construction process, underground stope, damage evolution, numerical test

CLC Number: 

  • TU 452
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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