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- highly gassy coal bed 高瓦斯煤层
- Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. 高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。
- Keyword： high gassy coal mining face; 关 键 词： 高瓦斯工作面;
- Discussion on Methane Prevention in Comprehensive Mechanized Driving in Single Coal Bed of Highly Gassy Mine 浅论高瓦斯矿井单一煤层综采瓦斯的防治
- Keywords highly gassy mine;single coal bed;comprehensive mechanized driving;gas prevention; 高瓦斯矿井;单一煤层;综采;瓦斯防治;
- Study on the Techniques for the Comprehensive Gas Control in the Comprehensive Mechanized Coal-mining Faces of Highly Gassy and Inflammable Coal Bed 高瓦斯易燃煤层综放面瓦斯综合治理技术研究
- Gas Control and Practice in High Gassy Coal Face with Blasting Mining 浅谈高瓦斯矿井炮采工作面瓦斯治理与实践
- Practice and Approach to Gas Control in High Gassy Coal Face of Guandi Mine 官地矿高瓦斯回采工作面瓦斯治理的实践与探讨
- Application of Gas Drainage from Holes along Roof Strike in High Gassy Coal Face 顶板走向钻孔抽放技术在高瓦斯回采面的应用
- Ignition Features and Its Prevention in a High Gassy Coal Face with Gas Drainage Tailgate 高瓦斯厚煤层有排瓦斯尾巷工作面的发火特点及防治
- high gassy coal mining face 高瓦斯工作面
- It is a new way of the utilization of coal bed gas. 为井下抽放煤层气的利用提出了一条新的途径。
- Under gassy coal seam condition, the full-heading development is employed.Because of the fast heading a high rate of gas emission arises. 在瓦斯含量较大的煤层采用综掘掘进巷道，由于掘进速度快，出现了瓦斯涌出量过大的现象。
- Methane drainage is being performed in 23 gassy coal mines of total major 41 coal producing mines in Poland at present. 目前,在波兰41对主要生产矿井中,有23对高瓦斯矿井进行了瓦斯抽放。
- For measuring exactly on gas content of coal bed,required high core recov ery and short time to hoisting and loa ding. 为了准确测定煤层含气量,要求取心作业必须有高的收获率和尽可能短的提钻及出筒装罐时间。
- To utilize mine gas as fuel for electricity generation is one of the mine gas exploitation projects with great future in gassy coal mines. 利用矿井抽采瓦斯进行发电,是目前矿井最有前途的瓦斯开发项目之一。
- Coal Bed Methane Drilling and Completion Technology in Western Basin of U.S. 美国西部盆地煤层气钻井和完井技术。
- Preliminary research on structural law of coal bed beneath nappe in No. 对新集二矿推覆体下煤层构造规律进行了初步研究。
- The gas exhausting is an effective measure which must be taken when gas is over the limit set by regulation in high gassy mine. 摘要瓦斯排放是高瓦斯矿井瓦斯超限后所必须采取的有效措施。
- Graphite deposit of Heye was formed by metamorphism of the Permian coal bed. 荷叶石墨矿是由二叠系煤层变质而成的石墨矿床,石墨与煤呈同层异矿关系。
