主焦煤矿综放工作面瓦斯涌出规律及瓦斯抽采分析应用  

Gas Emission Law and Gas Drainage Analysis of Fully Mechanized Caving Face in Zhujiao Coal Mine

作　　者：韩兆彦[1] 尹超 Han Zhaoyan;Yin Chao(Anyang Zhujiao Coal Industry Co.,Ltd.,Anyang 455141,China;Anyang Bureau of Industry and Information Technology,Anyang 455141,China)

机构地区：[1]安阳市主焦煤业有限责任公司,河南安阳455000 [2]安阳市工业和信息化局,河南安阳455141

出　　处：《科学技术创新》2022年第11期189-192,共4页Scientific and Technological Innovation

摘　　要：在煤层瓦斯含量较高时,由于一次采全厚,综放工作面覆岩运动、支承压力分布、顶煤运移及裂隙发育等因素对瓦斯解析的影响及采空区瓦斯溢出、运移和积聚等与分层开采不同,具有显著的特征。在工作面后方的采空区上部可积聚部分高浓度瓦斯,随着顶煤冒落,这部分瓦斯将涌入工作面,对工作面安全高效开采造成不利影响。因此,掌握厚煤层综放开采覆岩运移及矿压显现规律对于综放工作瓦斯有效抽采具有重要意义。When the gas content of coal seam is high, due to the full thickness of mining once, the influence of the movement of the overlying strata, the distribution of the support pressure, the movement of the top coal and the development of the fissures on the gas analysis and the gas overflow, migration and accumulation in the GOAF are different from the layered mining. A part of high concentration gas can be accumulated in the upper part of the goaf behind the working face. With the roof coal caving, this part of gas will pour into the working face, which will have an adverse effect on the safe and efficient mining of the working face. Therefore, it is of great significance to grasp the laws of overlying strata movement and ground pressure behavior in fully mechanized top coal caving mining in thick seam.

关 键 词：综采放顶 瓦斯涌出 规律分析 抽采设计 

分 类 号：TD823[矿业工程—煤矿开采] TD713[矿业工程—矿山开采]