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- W4207064995 abstract "Aiming at the problem of gas control in the working face and the roadway to be excavated at the same time due to the small construction length of bedding borehole under the condition of the occurrence of soft coal, a technology of one hole and two elimination pre-drainage to eliminate gas outburst by using air screw motor drilling was put forward, and the field test was carried out in the 17102(3) working face of Pansu Coal Mine.The results show that this technology can effectively control the borehole trajectory, ensure the uniform and reasonable range of borehole outburst elimination, solve the problems of long gas treatment cycle caused by the construction of gas treatment roadway, improve the effective drainage time of borehole, ensure enough time and space for gas treatment, and be beneficial to the mining and replacement of mine." @default.
- W4207064995 created "2022-01-26" @default.
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- W4207064995 date "2021-01-01" @default.
- W4207064995 modified "2023-10-16" @default.
- W4207064995 title "Study on Pre Pumping and Outburst Elimination Technology of “one hole and two elimination” in Bedding Directional Long Drilling" @default.
- W4207064995 doi "https://doi.org/10.1051/e3sconf/202132901089" @default.
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