【摘要】 针对抽放回采工作面瓦斯,沿回风顺槽施工尾巷有困难,或者切眼对接过程中不利于回顺钻孔搭接等存在的问题,采用工作面附近第三方巷道(皮带巷、运输行人巷、回风巷等)向采空区打导入钻孔,使采空区的瓦斯经导入钻孔导入第三方巷道,形成一种三方导入的抽放方法,能够有效解决以上问题,同时也为沿运顺施工尾巷能否达到预期抽放效果提供了依据。更多还原

【Abstract】 This paper exams that how to select a method in gas drainage in coal mining face,when there is a difficulty in return road construction or on the process of connecting the mine road in work-face making an open-off cut,it can utilize the third road nearby work-face(belt roads,railroads and pedestrian roads,air return tunnel,etc)to adopt making a hole into the exploited empty area,and then making the gas in the exploited empty area flow into the third tunnel,forming a three-side tunnel to drainage gas.It can solve the above mentioned problems effectively.And simultaneously it proposes a warranty whether it can achieve anticipated effect for transportation tunnel construction.更多还原