摘要
为实现煤巷条带区域不同区块的协调高效抽采,以煤巷条带区域前后2个区块为例,提出了煤巷条带区域不同区块的“时-空-危”的协调抽采方法,并现场试验了相邻3个区块的协调抽采效果。试验表明:3个区块实现了协调抽采达标,瓦斯抽采率38%~47%,残余瓦斯含量3.9~4.3 m^(3)/t,局部效检指标钻屑瓦斯解吸指标K_(1)值无超标现象,煤巷掘进时间缩短了105 d,实现了煤巷的安全快速掘进。
In order to realize the coordinated and efficient extraction of different blocks in the coal road strip area,taking the two blocks before and after the coal road strip area as an example,it proposed the coordination of"time-space-danger"drainage method of different blocks in the coal road strip area.It test the coordinated drainage effect of three adjacent blocks.The test shows that the three blocks have achieved coordinated drainage standards,the gas drainage rate is 38% to 47%,the residual gas content is 3.9 to 4.3 m^(3)/t,the local efficiency inspection index drill cuttings gas desorption index K_(1)value does not exceed the standard phenomenon.The driving time of coal roads has been shortened by 105 days realizing safe and fast driving of coal roads.
作者
王中华
WANG Zhonghua(Gas Research Branch,China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China;National Key laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China)
出处
《煤炭技术》
CAS
北大核心
2022年第5期107-110,共4页
Coal Technology
基金
国家重点研发计划资助项目(2017YFC0804206)
中煤科工集团重庆研究院有限公司一般项目(2019YBXM31)。
关键词
煤巷条带
区块
时-空-危
协调抽采
coal roadway strip
block section
time-space-danger
coordinated extraction
