An underground small-scale advanced directional water detection and discharge device and method
A small technology for water exploration and release, applied in safety devices, drainage, earth-moving drilling and other directions, can solve problems such as affecting the popularization and application of water exploration and release technology of advanced drilling in the well, affecting the driving speed of the excavation face, and occupying the excavation time, etc. The effect of high controllability of the entry trajectory, low opening density and high drainage efficiency
Active Publication Date: 2017-07-07
WUHAN CONOURISH COALMINE SAFETY TECH
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Problems solved by technology
A large amount of advanced drilling engineering takes up a lot of excavation time in the roadway, which seriously affects the excavation speed of the excavation face. There is a sharp contradiction and conflict between the advance exploration and discharge and the excavation speed. This contradiction seriously affects the underground advance drilling water exploration and discharge technology. Promoted application of
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[0018] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
[0019] like Figure 2-4 The downhole small-scale advanced directional water detection and discharge device shown includes an on-site drilling trajectory control host 7, a drilling rig 2.1, a drill pipe 2.2 arranged on the drilling rig 2.1, a detection drill pipe 8 threadedly connected to the drill pipe 2.2 at one end, and a screw motor 9 The drill bit 2.3 installed on the other end of the detection drill rod 8 (one end of the detection drill rod 8 is threadedly connected to the drill head of the drilling machine 2.1, the other end is threaded to the front end of the screw motor 9, and the rear end of the screw motor 9 is connected to the drill bit 2.3 Also by threaded connection), the mud pump 2.4 that cooperates with the drill bit 2.3, wherein, the drilling machine 2.1 is arranged in the hole of the side wall behind the roadway 5 excavation face, and th...
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The invention discloses an underground small-sized advanced directional water detection and discharge device and method. It controls the main engine, drilling rig, drill pipe, detection drill pipe, screw motor, drill bit and mud pump to perform advanced directional detection of the surrounding rock in front of the roadway through the on-site drilling track. Drain water; the on-site drilling trajectory control host performs drilling according to the preset directional and advanced water discharge drilling trajectory; and receives the drilling three-dimensional attitude data from the automatic test of the detection drill rod, and calculates the actual trajectory of the drilling hole at the same time. The actual drilling trajectory is compared with the design trajectory data, and the face angle value of the curved surface of the screw motor is adjusted according to the actual deviation value of the drilling, so that the drilling trajectory is corrected to the drilling design trajectory, and finally the actual drilling trajectory reaches Design goals. The present invention can conduct controllable directional drilling detection and release water on the head of the tunnel or tunnel and the working face, so as to ensure that there is no water-rich body within a certain distance in front of the tunnel excavation and around the tunnel, and ensure the safety of the tunnel excavation.
Description
technical field [0001] The invention relates to the technical field of underground advanced water detection and discharge, in particular to a small-sized underground advanced directional detection and discharge device and method. [0002] technical background [0003] Water exploration in advance refers to the use of drilling to directly explore and release water to the roadway or tunnel excavation direction and working face at the head of the excavation roadway, to detect whether there is rich water body, harmful geological structure or water guide channel in front, and to discharge water through the drill hole if there is water , to provide protection for the safe excavation of roadways or tunnels. [0004] Drilling water in advance is one of the most important and effective downhole water prevention and control methods that are still widely used. However, due to the fact that the current underground advance drilling holes are straight holes 10, according to the relevant t...
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IPC IPC(8): E21F16/00
Inventor 武强刘鎏曾一凡陶凤娟刘春生
Owner WUHAN CONOURISH COALMINE SAFETY TECH