焦作演马矿25041工作面煤与瓦斯压出地质因素探讨

Probe into the Geological Factors in Coal & Gas Extrusion in 25041 Working Face in Yanma Mine

焦作矿区是高瓦斯区,位于其中部的演马矿属煤与瓦斯突出矿井。瓦斯赋存及煤与瓦斯突出受各种地质因素控制。演马井田是受凤凰岭断层和峪河断层控制的断块,瓦斯含量较高,构造煤厚变化大。2005年5月22日发生的煤与瓦斯压出事故正是地质构造、地压、瓦斯和煤体结构等多种因素综合作用的结果,地质构造是引起此次压出的决定因素。

Yanma Coal Mine locates at the center of Jiaozuo Coal mine with large gas content. Occurrence of gas, coal and gas outburst were controlled by various geological factors. Yanma minefield, a block with large gas content, coal thickness variation in structure, is controlled by Fenghuangling Fault and Yuhe Fault. Accident occurring on May 22, 2005 in the coal and gas, pressure is the geological structure. To pressure gas and coal combined result of a variety of factors, such as geological structure, tectonic pressure , gas and coal. Geological structure is the determining factor causing this.