›› 2007, Vol. 28 ›› Issue (6): 1181-1186.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on numerical analysis of rockburst and primary support time in Cangling Tunnel

WANG Bo，HE Chuan，YU Tao   

  1. Department of Underground Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2005-07-18 Online:2007-06-11 Published:2013-09-13

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Abstract: According to the excavation style and gradually adjusting of the stress after excavation in the tunnel, some typical sections are chosen to numerically analyze and forecast the status of rockburst in the whole calculational scope. According to the calculational result, some conclusions can be drawn as follows: the larger of the stress releasing coefficient has become, the area and the grade of rockburst would increase. For effectively avoiding or reducing the occurring of rockburst, the most prime support times for the different areas are given by analyzing the measuring data in-situ in this tunnel.

Key words: tunnel, rock burst forecasting, numerical calculation, stress releasing coefficient, support time

CLC Number: 

  • TD 235
  • 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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