›› 2013, Vol. 34 ›› Issue (4): 1202-1210.

• Testing Technology • Previous Articles     Next Articles

Design of simulation experiment and its application system of outburst in uncovering coal seam in cross-cut

WANG Gang1, 2, CHENG Wei-min1, 2, ZHANG Qing-tao2, SUN Lu-lu2, SU Cai-quan2, 3   

  1. 1. Key Laboratory of Mining Disaster Prevention and Control of Ministry of Education, Shandong University of Science and Technology, Qingdao, Shandong 266590, China; 2. College of Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266510, China; 3. Lindong Mining Group Co., Ltd., Guiyang 550056, China
  • Received:2012-02-05 Online:2013-04-10 Published:2013-04-16

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Abstract: Based on the research needs of the relation between mining stress fields and gas outburst during the process of rock cross-cut coal uncovering, a set of outburst simulation experiment system of rock cross-cut coal uncovering is developed which takes ground stress, gas pressure and coal structure into account comprehensively, while outburst model of rock cross-cut coal uncovering is still on the stage of laboratory research and most don’t comprehensively consider the effect of gas, ground stress and physico-mechanical properties on outburst. To get accurate, objective the experimental effect, the design of key technologies such as main composition structure, function of this experiment system, outburst roadway, quick opening device and nitrogen balance system are introduced. The experiment results reflected the change of stress and gas pressure during outburst in uncovering coal seam using this experiment system. This experiment system provides new technical means for studying on and revealling the change law of mechanism of coal and gas outbursts and ground stress, gas pressure during the process of outburst.

Key words: rock cross-cut coal uncovering, outburst, simulation, experiment system, key technology

CLC Number: 

  • TD 714
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