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《MINING SAFETY & ENVIRONMENTAL PROTECTION》 2000-03
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Analysis of Flow Field of Gas Drained from Roof of Working Seams

The paper described the basic principle of gas drainage form boreholes or roadways arranged along roof strike of the working seams and the distribution characteristics of roof rock fractures,analyzed the distribution of gas folw field in the three-dimensional area of the upper corner angle and the goaf of coal face-roof fractures-drainage holes or roadways in the roof before and after practicing gas drainage techniques from roof with flow field theory,and pointed out some key problems need pay attention to in the application of gas drainage techniques from roof。
【CateGory Index】: TD712
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Chinese Journal Full-text Database 1 Hits
1 ;On the all negative pressure ventilation used in coal drift heading in highly gaseous coal seams[J];China Coal;2001-11
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1 JIN Xue-yu(Research Institute of Gas and Geology Management of Huainan Mining Group, Huainan, 232001, China);THE FAST METHOD FOR COAL UNCOVERING THROUGH ”STOPPING FLOW AND DRAINAGE” GAS[J];Journal of Anhui Institute of Architecture;2004-06
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1 Li Shugang, Lin Haifei, Cheng Lianhua ( School of Energy Science and Engineering, Xi'an University of Science ft Technology, Xi'an 710054 China);Study on the Distribution Law of Methane Concentration in Mining Fissure Elliptic Paraboloid Zone[A];[C];2004
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1 Liu Zegong 1,2, Yuan Liang+3, Dai Guanglong+2, Shi Biming+2, Lu Ping+1, Tu Min+2 (1. University of Science and Technology of China,The State Key Lab of Fire Science, Hefei 230026,China;2. Anhui University of Science and Technology,Department of Resources Exploration & Management Engineering,Huainan,Anhui 232001,China; 3. Huainan Mining Group Co.Huainan,Anhui 232001,China);Study on Coal Seam Roof Gas Drainage from the Strike of Annular Fracture Areas by the Long Drill Method[J];Engineering Science;2004-05
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5 YUAN Liang1, LIU Zegong1,2(1Deptof Resources Exploitation and Management, Anhui University of Science,University of Science and Technology of China, Hefei230026, China);Study on the technique of roof gas drainage from mine coal seam in Huainan mine area[J];Journal of China Coal Society;2003-02
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1 ZHANG Yinghua~1,HUANG Zhi'an~1,DING Houcheng~1,SONG Jianguo~2 (1.Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 100083,China;2.Huajin Coking Coal Company,Lishi 033315,China.);Numerical Simulation of High Dip Tunnel for Drawing out Gas[A];[C];2008
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