Study on Energy Dissipation Law in the Process of Coal and Gas Outburst
Study on Energy Dissipation Law in the Process of Coal and Gas Outburst
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DOI：
10.2991/emcm-15.2016.136
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发表时间：
2016-02
期刊：
影响因子：
--
通讯作者：
Shugang Li;Ning Wang;Tianjun Zhang
中科院分区：
文献类型：
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作者：
Shugang Li;Ning Wang;Tianjun Zhang
从能源角度进行研究是探究煤与瓦斯突出原因、掌握煤与瓦斯突出规律的重要途径之一。 （目的）：研究煤与瓦斯突出过程中的能量耗散规律。 （方法）：根据弹性力学物理方程建立煤岩应变与应力关系，在不考虑瓦斯压力和温度变化的情况下得到煤岩变形势能，建立煤层瓦斯实用动力学方程。 （结果）：研究结果表明，富含瓦斯的煤岩储存了大量的变形能、瓦斯在煤上吸附的吸附能、瓦斯膨胀能和瓦斯流体势能等。（结论）：这些能量可以使煤在煤岩损伤破裂过程中破碎，为煤与瓦斯突出提供持续驱动能量。
Research from the angle of energy is one of the important way to explore the cause of coal and gas outburst for grasping the law of coal and gas outburst. (Objective): In order to study energy dissipation law in the process of coal and gas outburst. (Methods): Build the relationship between strain and stress of coal and rock according to the physical equations of elastic mechanics, obtain the deformation potential energy of the coal and rock without considering the change of gas pressure and temperature, establish the practical dynamics equation of gas in coal seams. (Results): The research results show that gas rich coal and rock stores a great deal of deformation energy, adsorption energy of gas adsorbing on coal, gas expansion energy and gas fluid potential energy, etc. (Conclusion): These energy can make coal broken in coal and rock damage fracture process and provide continuous driving energy for coal and gas outburst.