Application of horizontal directional drilling in boundary exploration of fire zone in open-pit coal mines
In order to solve the problem of insufficient exploration accuracy of the boundary of the burning area in the northwest of Jiangjun Gobi No.2 Open-pit Coal Mine area,the horizontal directional drilling was used for the first time to continuously explore the boundary of the burning area.The directional drilling trajectory,detailed parameters of branch holes,and sealing scheme were provided,and the burning boundary was further revised.The physical coal boundary in the northern part of the exploration area was delineated.
horizontal directional drillingburning area boundaryexploring controlconstruction technologygeological exploration
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