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为了掌握寨崖底煤矿开采的3908综采工作面瓦斯涌出异常的原因,统计回采工作面邻近层瓦斯涌出占79.59%~90.26%,平均84.92%。通过现场实测邻近层瓦斯参数,分析了邻近层瓦斯涌出规律,得出6号煤层是影响综采面瓦斯涌出异常增加的主要原因。测试结果表明:煤层顶底板岩性、煤对瓦斯的吸附性能和煤的比表面积是导致6号煤层瓦斯赋存异常的主要因素。
In order to grasp the reason of gas emission anomaly in 3908 fully mechanized coal mining face in Zhaya coal mine, the gas emission from the adjacent layer in the mining face accounted for 79.59% ~ 90.26% with an average of 84.92%. By measuring the gas parameters in the adjacent layer on site, the gas emission rules of adjacent layers are analyzed. It is concluded that the 6th coal seam is the main reason that influences the gas emission anomaly increase in the fully mechanized coal face. The test results show that: the top and bottom of the coal seam lithology, coal gas adsorption and coal surface area is the main reason for the 6 coal seam gas anomalies.