邻近层卸压瓦斯富集规律数值模拟及应用研究  

Numerical Simulation and Application Research on Enrichment Law of Pressure Relief Gas in Adjacent Seams

作　　者：吕康[1] LV Kang(Department of Chemistry and Chemical Engineering,Jining University,Qufu 273155,China)

机构地区：[1]济宁学院化学与化工系,山东曲阜273155

出　　处：《济宁学院学报》2016年第6期46-50,共5页Journal of Jining University

摘　　要：针对邻近层采动卸压瓦斯涌入采场造成瓦斯浓度超限的问题,利用CFD技术模拟了邻近层卸压瓦斯在采动裂隙场中的运移富集规律,基于模拟结果制定了邻近层抽放方案,并通过现场考察来验证抽放方案的有效性.结果表明,制定的邻近层抽放方案有效地消除了工作面瓦斯浓度超限现象,CFD技术模拟卸压瓦斯富集规律可以为制定邻近层抽放方案提供依据.In order to solve gas concentration exceeding limit caused by the phenomenon that mining-affected pressure relief gas in adjacent seams emit into stope, the migration and enrichment law of pressure relief gas in the mining- affected fracture field was simulated by using CFD technology. The drainage schemes for pressure relief gas in adjacent seams was developed based on simulation results, and the validity of the drainage scheme was verified through onsite investigation. The results show that the adjacent drainage scheme effectively eliminates the phenomenon of gas concentration exceeding limit at the mining face. CFD simulation of the pressure relief gas enrichment can provide the basis for adjacent seams drainage plan.

关 键 词：卸压瓦斯 邻近层抽放 数值模拟 CFD技术 

分 类 号：TD712[矿业工程—矿井通风与安全]