Device and method for grouting and water-blocking borehole correction in limestone section of subway tunnel in karst area
A deviation correction device and technology in karst areas, applied in the direction of drill pipe, drill pipe, directional drilling, etc., can solve the problems of deviation of the drilling direction of the drill bit, easy bending of the drilling hole, deflection bending, etc., and achieve simple and fast operation, improve friction, low cost effect
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[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all embodiments of the present invention. For ease of description, only parts related to the invention are shown in the drawings.
[0038] It should be noted that, where there is no conflict, the components of the embodiments of the invention generally described and illustrated in the drawings may be arranged and designed in various different configurations. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary...
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