›› 2005, Vol. 26 ›› Issue (S1): 17-20.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Catastrophe model of support and surrounding rock of underground engineering

ZHAO Chang-zhou1, LI Zhan-qiang1 , WEI Feng-hua1, CHEN Tie-lin2   

  1. 1.China University of Geosciences, Beijing 100083, China; 2. Nanjing Hydraulic Research Institute, Nanjing 210024, China
  • Received:2005-01-03 Published:2005-12-15

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Abstract: A catastrophe model of support and surrounding rock interaction is established. Catastrophe instability of surrounding rock is studied by using support stiffness and softening stiffness modulus of surrounding rock. The model gives rational theoretical basis of new Austrian tunnelling method. The key point of catastrophe instability is quantified. Support and surrounding rock become discrete material when its displacement get the key point. The key point is determined by internal cause rather than external cause of support and surrounding rock.

Key words: catastrophe, surrounding rock, support, interaction

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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