›› 2007, Vol. 28 ›› Issue (2): 351-354.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation of abutment pressure distribution laws of working faces

SI Rong-jun, WANG Chun-qiu, TAN Yun-liang   

  1. Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2005-03-21 Online:2007-02-10 Published:2013-08-28

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Abstract: The dynamic movement of the working face abutment pressure during the coal mining is simulated with the FLAC-3D simulating software. And the curve about the relation between the abutment pressure concentrated coefficient and working face advanced distance is fitted according the simulating results. Contrasting simulation results, the relationships between abutment pressure concentrated coefficient and the distance which distant S meter from the rip with factors such as working face advanced distance, face length, coal seam thickness and buried depth are obtained. Then gained the attribution laws of abutment pressure. Those laws can offer gist for roadway maintenance, coal and gas outburst and caving evaluation of top coal.

Key words: abutment pressure, numerical simulation, face length, face advanced distance, thickness of coal

CLC Number: 

  • TD 35
  • 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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