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Abstract Based on self-developed large-scale simulation test system of coal and gas outburst,experimental verification of its reliability is carried out;and experimental study of simulation of variation laws of intensity of coal and gas outburst is done under different water contents of coal as well. It is shown that:(1) the simulation results obtained by the large scale simulation test system of coal and gas outburst are fairly consistent with actual results of coal and gas outburst;(2) the reliability is satisfactory;(3) both possibility and intensity of coal and gas outburst decrease with the increase of water contents of coal;and (4) under the test conditions,the relationship between the water contents and intensity of coal and gas outburst is conic.
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Received: 16 December 2008
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