超长综放面瓦斯涌出特征及其影响因素  

Characteristics of Gas Emission and Its Influential Factors of the Super-Length Fully-Mechanized Top-Coal Caving Face

作　　者：赵长春 屈庆栋[2] 许家林[2] 杨胜强[2] 吴仁伦[2] 

机构地区：[1]阳泉煤业集团技术中心,山西阳泉045000 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008

出　　处：《采矿与安全工程学报》2007年第3期335-339,共5页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金项目(50374066);教育部"新世纪优秀人才支持计划"(NCET-05-0478);国家重点基础研究发展规划(973)项目(2005CB221503)

摘　　要：对以邻近层瓦斯涌出为主的阳泉三矿K8206高瓦斯超长综放面瓦斯涌出特征进行了分析,研究了工作面推进速度、生产能力及高抽巷抽采能力对工作面瓦斯涌出量的影响,取得了超长综放面本煤层瓦斯涌出量和生产能力之间、邻近层瓦斯涌出量和推进速度之间的关系式.研究表明:后部高抽巷合理布置和促使顶板早垮是工作面快速度过初采期的主要办法;采取有效措施降低本煤层瓦斯涌出量和保证走向高抽巷良好的抽采能力是高瓦斯超长综放面高产高效的有力保障.Gas emission, mainly from the adjacent coal seams, of K8206 super-length fullymechanized top-coal caving face in the Third Mine of Yangquan Coal Company was studied and the effect of advancing speed, production capacity, and gas extraction capability on the gas emission was analyzed. The relation formula between the gas extraction rate of the adjacent seams and advancing speed and the one between the gas emission rate of the working face and the production capacity are respectively established. The result shows that 1） reasonable layout of rear high level extraction gateway and making an early roof falling are the main way to enable the working face to pass the initial mining stage quickly, and 2） taking effective measures to reduce the quantity of gas emission from the mining seam and to keep good extraction capacity of the high level extraction gateway on the strike is the strong guarantee for high-output and high-efficiency coal mining in super-length fully-mechanized top-coal caving face.

关 键 词：超长综放面 邻近层瓦斯涌出 生产能力 高抽巷 瓦斯抽采 

分 类 号：TD712.52[矿业工程—矿井通风与安全]