煤层注水、钻孔封堵及瓦斯排放橡胶软管和软管组合件
Rubber hose and hose assemblies for coal seam water injection,gas drainage and drilling plugging
2016-02-24
MT/T 1023-2006
煤层注水可注性鉴定方法
Judging method of infusibility for coal seam infusion
2006-11-02
NB/T 11635-2024
煤层瓦斯排放钻孔有效排放半径测定方法
Measuring method for effective radius of gas emission drilling in coal seam
2024-09-24
GB/T 25217.9-2020
冲击地压测定、监测与防治方法 第9部分：煤层注水防治方法
Methods for test, monitoring and prevention of rock burst—Part 9: Prevention method of water infusion on coal seam
2020-11-19
NB/T 11541-2024
顺层定向长钻孔预抽煤巷条带煤层瓦斯区域防突技术规范
Technical specifications for regional outburst prevention of gas pre extraction in coal roadway strips through directional long boreholes along the coal seam
2024-05-24
GB/T 25217.10-2019
冲击地压测定、监测与防治方法 第10部分：煤层钻孔卸压防治方法
Methods for test, monitoring and prevention of rock burst—Part 10: Prevention method of drillhole destressing on coal-seam
2019-08-30
NB/T 11638-2024
穿层钻孔预抽多煤层瓦斯单层抽采量确定方法 实测流量法
Method for determining the extraction volume of single-layer gas in multi-coal seam by drilling through—Seam holes:measured flow rate method