上覆采空区对下煤层开采的影响及防治技术研究  

Study on Influence of Overlying Goaf on Mining of Lower Coal Seam and Its Prevention Technology

作　　者：马文斌 MA Wenbin(Duerping Coal Mine,Xishan Coal Electricity Group,Shanxi Coking Coal Group,Taiyuan 030022,Shanxi,China)

机构地区：[1]山西焦煤集团西山煤电杜儿坪煤矿,山西太原030022

出　　处：《能源与节能》2021年第5期125-127,共3页Energy and Energy Conservation

摘　　要：杜儿坪煤矿73904工作面采用外错式巷道布置方法,工作面位于72904工作面采空区下方,在实际回采过程中由于自然风压、采空区漏风等容易造成上隅角瓦斯浓度增大。为有效控制上隅角瓦斯浓度,采用动态均压与抽采技术相结合的瓦斯治理技术,为类似工作面的回采提供了参考。The 73904 working face of Duerping Coal Mine adopts an external staggered roadway layout method.The working face is located under the goaf of 72904 working face.In the actual mining process,it is easy to increase the upper corner gas density due to natural wind pressure and air leakage in the goaf.In order to effectively control the upper corner gas density,this paper proposed the application of gas treatment technology combining dynamic pressure equalization and drainage technology,which provided a basis for the mining of similar working faces.

关 键 词：上覆采空区 动态均压 上隅角 上部抽采 

分 类 号：TD712.623[矿业工程—矿井通风与安全]