Integrated tunneling device and technology under coal roof of fully mechanized caving face
A fully-mechanized caving face and process technology, applied in underground chambers, shaft equipment, shaft linings, etc., can solve the problems of difficult control of soft coal roofs and coal sides, poor scaffolding and shed support effects, and low single-entry efficiency of excavation. problems, to achieve the effect of improving tunneling efficiency, reducing labor intensity and improving mining safety
Pending Publication Date: 2019-08-16
HUABEI MINING GRP
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is the difficulty in controlling the soft coal roof and coal side in the current fully mechanized coal caving working face, the poor effect of passive scaffolding support, and the low efficiency of single-entry excavation
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[0024] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. detailed instructions.
[0025] Such as Figure 4 As shown, the integrated tunneling device under the coal roof of the fully mechanized caving face includes a lock leg anchor 5, a self-drilling anchor 6, an anchor cable 7, a grouting anchor 8, and a U-shaped shed beam 4, and a U-shaped shed beam One side of the shed beam of 4 is provided with a locking leg bolt 5, which is inserted into the side wall of the coal mine roadway, and the end of the locking leg bolt 5 is connected to one side of the U-shaped shed beam 4, and the U-shaped The other side of the shed beam of the shed beam 4 is provided with a grouting anchor 8, which is inserted into...
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The invention discloses an integrated tunneling device and technology under a coal roof of a fully mechanized caving face, and belongs to the technical field of coal mining in a coal mine. A leg locking anchor rod is arranged on one side edge of a roof beam of a U-shaped roof beam and inserted in the side wall of a coal mine roadway, the end part of the leg locking anchor rod is connected with oneside edge of the U-shaped roof beam, a grouting type anchor rod is arranged on the other side edge of the roof beam of the U-shaped roof beam and inserted in the side wall of the coal mine roadway, the end part of the grouting type anchor rod is connected with the other side edge of the U-shaped roof beam, a plurality of self-drilling anchor rods are arranged at the top of the U-shaped roof beam,and a plurality of anchor cables are vertically arranged at the top of the U-shaped roof beam. According to the technology and the method, the traditional operation modes such as manual tunneling andpassive support are changed, the roadway layer position is adjusted and optimized, the coal roadway is changed to a half rock roadway or a full rock roadway, the small circulation manual wedging roofprotective operation is changed to be the integration operation of large circulation hollow self-drilling type anchor rod skeleton roof protective and grouting reinforcing, a semicircular arch U-shaped steel roof support is changed to be a composite support of 'flat-roofed roof and anchor cable beam', integral fast construction of the tunneling main working procedure is achieved, thus the tunneling efficiency under the coal roof is improved, the labor intensity is lowered, and mining safety is improved.
Description
technical field [0001] The invention relates to the technical field of coal mining in coal mines, in particular, the invention relates to an integrated tunneling device and technology under the coal roof of a fully mechanized caving face. Background technique [0002] The fully mechanized top-coal caving mining method in thick coal seams has low cost, large production capacity and high efficiency, and is one of the important technical methods for intensive safe and efficient mining of coal mines. In recent years, the fully mechanized top-coal caving mining technology has developed rapidly, the "three machines" supporting equipment capabilities have been upgraded, and production capacity has increased significantly. Therefore, speeding up the production preparation progress of fully mechanized top coal caving face and maintaining mining balance are the key to realize the sustainable development of mine production. Because the roadway of fully mechanized top coal caving face ...
Claims
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IPC IPC(8): E21D11/00E21D11/15
CPCE21D11/006E21D11/155
Inventor 方良才聂政程新明王多春张浩李军
Owner HUABEI MINING GRP