›› 2008, Vol. 29 ›› Issue (2): 359-364.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Strong-soft-strong mechanical model for controlling roadway surrounding rock subjected to rock burst and its application

GAO Ming-shi1, DOU Lin-ming1, ZHANG Nong1, WANG Kai 1,2, ZHENG Bai-sheng1   

  1. 1. State Key Laboratory of Coal Resourses and Mine Safety，China University of Mining and Technology, Xuzhou, 221008, China; 2. China National Coal Association, Beijing 100083, China
  • Received:2007-09-25 Online:2008-02-11 Published:2013-07-10

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Abstract: Rock burst may result in tremendous hazards in coal mining, such as sudden roof falling or even abrupt closing and jamming of roadway. According to the mechanism of roadway destruction by rock burst, a strong-soft-strong (3S) structural model to prevent rock burst from taking place was established and analyzed. The result shows that the 3S structural model has several characters, such as strength character of the structure itself, stress adjustment, wave absorbing, deformation and anti-deformation, energy consuming, etc.. Stress criterion and energy rule of the small inner support structure destroyed by rock burst were deduced. At last, based on the 3S model, the engineering application was theoretically discussed; several techniques such as decreasing shock energy, setting proper soft structure, and improving support strength were put forward to prevent roadway from being destructed by rock burst.

Key words: mining engineering, rock burst, roadway surrounding rock control, strong-soft-strong (3S) mechanical model, eng- ineering application analysis

CLC Number: 

  • TU 451
  • 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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