摘要
通过对采空区顶板覆岩活动及空隙介质特征分析,采用现场束管监测的方法来测定采空区瓦斯浓度分布。根据现场观测结果进行了采空区瓦斯浓度分布状态分区,得出采空区后方0~6 m范围内的瓦斯稀释的区域;6~10 m范围内的瓦斯聚集区域;10 m以外的范围是瓦斯稳定区域,并根据这个理论,本文主要分析了采空区后方的岩层活动和瓦斯浓度分布的关系,得出造成采空区瓦斯浓度分布不同的根本原因。
Through the roof rock activities in gob and the porosity media features analysis, Using the method of the scene beam pipe monitoring to determine he Distribution of Gas Density in Gob. According to the scene test results divided the gas density in gnb intn different regions. Reaching conclusion that 0--6 m behind gob is gas dilution area and 0--10 m behind gob is gas Gathering area and 10m beyond is gas stabilizing area. We analyzed the rough relatinnship between the distribution of gas density in gob and the strata movement. We get the basic causing that the different on the distribution of gas density in gnb.
出处
《科技资讯》
2013年第23期98-100,共3页
Science & Technology Information
关键词
采空区
瓦斯浓度
状态分区
岩层活动
Gob
The gas density
State partitions
Strata movement
