【摘要】 针对陈四楼煤矿煤与瓦斯突出问题,综合运用瓦斯地质学和构造物理学等相关理论和方法,通过现场调研和数值模拟,从地质因素和工程因素2个方面对"4·10"煤与瓦斯突出原因进行了探讨。研究表明:压扭性雁列式断层引起剪应力集中,造成岩桥区结构性变形,破坏煤体结构,促使瓦斯富集,提供了突出所需的弹性内能和瓦斯膨胀能,是控制煤与瓦斯突出的主要地质因素;采动应力造成断层活化诱导了煤与瓦斯突出的发生。在此基础上提出了加强断层预测、建立煤与瓦斯突出预警体系和强化瓦斯抽采等瓦斯综合防治措施。更多还原

【Abstract】 For the problem of coal and gas outburst in Chensilou Coal Mine, based on gas geology and tectonophysics theory, the cause of “4·10”coal and gas outburst was discussed from geological factors and engineering factors by using field investigation and numerical simulation. The results show that the pressure-torsional en-echelon faults caused the shearing stress concentration and structural deformation of rock bridge area, destroyed coal body structure and congregating gas. It provided the elastic internal energy and gas expansion energy for coal and gas outburst, and it was main geological factor of the coal and gas outburst. The fault activation caused by mining stress disturbance induces coal and gas outburst. On above basis, the coal gas comprehensive prevention and controlling measures of were proposed, including of strengthening fault prediction, using a reliable prediction system coal and gas outburst and strengthening gas drainage measures.更多还原