复合煤层开采上隅角瓦斯超限与低氧协同防治技术研究及应用  

Research and Application of Gas Over-limit and Low Oxygen Control Technology in Upper Corner of Composite Coal Seam Mining

作　　者：史超 张扬 SHI Chao;ZHANG Yang(Jinhuagong Coal Mine of Jinneng Holdings Coal Group Co.,Ltd.,Datong 037007,China;School of Safety Science and Engineering of Henan Polytechnic University,Jiaozuo 454003,China)

机构地区：[1]晋能控股煤业集团有限公司晋华宫矿,山西大同037007 [2]河南理工大学安全科学与工程学院,河南焦作454003

出　　处：《煤》2023年第2期6-10,共5页Coal

基　　金：国家自然科学基金项目(52074106,51734007);中原博士后创新人才项目(ZYQR201810171);瓦斯灾害监控与应急技术国家重点实验室开放基金(2021SKLKF01)。

摘　　要：为了解决复合煤层开采条件下,上覆采空区瓦斯下泄导致的下覆工作面回采时,上隅角瓦斯超限和严重低氧问题,以晋华宫矿为例,通过分析晋华宫矿各煤层情况、上隅角有害气体来源和上覆采空区气体下泄运移规律,得到了治理下泄气体的防治技术。结合8714工作面的实际情况,提出主动治理和被动治理的技术措施,并利用上隅角埋管和高抽巷抽采治理瓦斯及低氧,解决了上覆采空区瓦斯下泄导致的瓦斯超限和低氧问题,对类似矿井具有重要的指导意义。In order to solve the problem of gas overrun and serious low oxygen in the upper corner of the overlying working face caused by gas leakage in the goaf under the condition of compound coal seam mining,taking Jinhuagong Coal Mine as an example,based on the analysis of the coal seam,the source of harmful gas in the upper corner and the law of gas flowing down and moving in the goaf above,the prevention and control technology of gas flowing down is obtained.Combined with the actual situation of 8714 working face,the paper puts forward on the technical measures of active and passive treatment,and uses the buried pipe in the upper corner and high drawing roadway to control the gas and low oxygen,it is of great significance for similar mines to solve the problems of gas overrun and low oxygen caused by gas leakage from goaf.

关 键 词：复合煤层 上隅角埋管 瓦斯超限 低氧 协同防治 

分 类 号：TD711[矿业工程—矿井通风与安全]