State Key Lab of Coal Mine Disaster Dynamics and Control,Chongqing University State and LocalJoint Engineering Lab of Gas Drainage from Complicated Coal Gas Seam,Chongqing University

为了研究煤与瓦斯突出的发生机理,基于综合作用假说分析了控制煤与瓦斯突出的3种因素,利用自主研制的煤与瓦斯突出模拟试验台,分别在不同瓦斯压力、不同垂直应力、不同煤体强度下进行了煤与瓦斯突出物理模拟试验。试验结果表明:突出强度随着煤体内瓦斯压力的增大而增大;随着垂直地应力的增加而增大,且在垂直地应力等幅增长的条件下,突出强度的增长幅度增大;而随着煤体强度的增加,煤与瓦斯突出强度近似呈线性增加。

In order to study the occurrence mechanism of the coal and gas outburst,based on the hypothesis of the comprehensive effect whioh mentioned three factors to control the coal and gas outburst,the self researched and developed simulation experiment platform ofthe coal andgas outburst was applied to make the physical simulation experiment of the coal and gas outburst under diferent gas pressure different vertical stress and different coal strength.The experiment results showed that the outburst intensit would be increased with the gas pressure in thecoalincreased and would be increased with the vertical geostress increased.Under the condition of the vertica d,the increased amplitude of the outburst intensity would be increased.And with coal intensity increased,the intensityof the coal and gas outburst would be increased in linear.

重庆市基础与前沿研究计划重点资助项目(cstc2013jjB90001)；国家自然科学基金资助项目(51304255；51474040)；国家级大学生创新训练资助项目(201510611059)；