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《Coal Mine Machinery》 2017-11
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Applied Analysis of High Position Directional Drilling Technology in Tangkou Coal Mine

WANG Jian-zhi;Li Yan-ming;Shandong Tangkou Coal Co.,Ltd.;Chongqing Research Institute of China Coal Technology and Engineering Group;  
In order to explore the actual effect of roof high position directional drilling technology in gas control at upper corner of Tang Kou coal mine, by the drilling design of theoretical calculation and using the directional drilling machine,the drilling tests were carried out in the 6305 working face,and the drilling depth reached 375 m,375 m and 402 m. Results show that by using high directional drilling technology,its drilling depth,construction efficiency,drainage effect and construction cost are greatly improved comparing with the common high position drilling hole.
【Fund】: “十三五”国家科技重大专项任务(2016ZX05045003-004)
【CateGory Index】: TD712.6
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