回采工作面瓦斯防治技术研究

Study on gas control technology of recovery working face

为提高平煤股份六矿回采工作面回采效率,准确快速的识别回采危险点,在确保回采工作安全合规的基本前提下,精简瓦斯治理工作。以该矿戊9-10煤层的非突区域的戊9-10-22120工作面为研究对象,从保护层开采理论和生产实际两个角度分析上部保护层开采对该工作面保护效果的可靠性。充分利用该工作面煤巷掘进期测定的瓦斯资料,分析该工作面回采期间可能存在的风险。有针对性的提出回采期间瓦斯参数识别方法、断层探测方法,对于可能出现突出危险的区域设计相应的瓦斯排放措施及过断层技术措施。

In order to improve the mining efficiency of Pingdingshan No.6 Mine recovery mining face,the recovery hazard was accurately and quickly identified,and the gas control work was streamlined under the basic premise of ensuring the safety compliance.The E9-10-22120 working face in the non-surge area of E9-10 coal seam of this mine was taken as the research object,the reliability of upper protective layer mining on the protection effect of this working face was analyzed from two perspectives of protective layer mining theory and production practice.The gas data measured during the coal tunneling period of the working face was fully utilized to analyze the possible risks during the recovery mining period of the working face.The gas parameters identification method and fault detection method during the recovery mining period were proposed in a targeted manner,and the corresponding gas emission measures and technical measures for crossing faults were designed for possible gas danger area.