8309面顶抽巷抽采气源测定与分析

Determination and Analysis of Extracted Gas Source in Roof Extraction Roadway at 8309 Working Face

本文以同忻矿8309工作面顶抽巷为工程背景,采用SF6示踪气体技术对顶抽巷抽采气源进行现场测定,分析测定数据可知:8309工作面顶抽巷抽采气源为工作面新鲜风流、上部采空区下泄气体、邻近采空区气体、本工作面采空区气体。分析结果表明,同忻矿顶抽巷层位布置存在优化的必要性。

Through in-situ measurement of the extracted gas source in roof extraction roadway with SF6tracer gas technology at8309 working face of Tongxin Colliery,the paper proposes the necessity of optimizing the optimization of layer layout based on the measurement data showing that the extracted gas sources come from the fresh air flow,gas released from the upper goaf,gas in the adjacent goaf,and gas in the goaf at the working face.