›› 2009, Vol. 30 ›› Issue (2): 447-451.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Correlation between rock burst and movement of strata and ground surface

GUO Wei-jia1, KONG Ling-hai2, CHEN Shao-jie1 SUN Qing-guo3   

  1. 1. Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266510, China; 2. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; 3. Huafeng Colliery of Xinwen Mining Group, Tai?an 271000, China
  • Received:2007-04-11 Online:2009-02-10 Published:2011-01-27

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Abstract:

Based on the indoor test and numerical calculation of movement of ground surface and strata, large-scale bed separation in bending strip upside cranny strip is brought by un-consistency of overlying strata subsidence movement due to underground mining and different characteristics of displacement and deformation of overlying strata and ground include periodic caving of bed separation inter-space along with work face mining. Conglomerate layer movement is the main power fountain of rock burst on the basis of local observation that ground surface subsidence change strenuously with high frequency rock burst and more dangerous as ground surface rebounding. And rock burst moves periodically adapt to movement of deep conglomerate layer.

Key words: movement of strata and ground surface, movement of overlying strata absciss layer, rock burst, correlation

CLC Number: 

  • TD 325
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