A coal mine fault waterproof structure
A technology of faults and coal mines, applied in the field of coal mining, can solve problems such as fault collapse, achieve the effects of preventing water penetration, improving integrity, and improving safety
Active Publication Date: 2020-06-02
JINING UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide an anti-permeable structure for faults in coal mines to solve the problem that some faults cannot be avoided in the above background technology and must be reinforced and waterproofed to prevent the influx of groundwater and cause the faults to collapse
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[0024] see Figure 1~6 , in an embodiment of the present invention, a coal mine fault waterproof structure, including a steel pipe arch column 1, a plurality of radially tensioned main bars 9, branch steel bars 10, a tensioned base assembly, a grouting anchor pipe assembly and a suction pipe assembly 6, Among them, two groups of steel pipe arch columns 1 arranged parallel to each other close to the roadway wall 16 are fixed at the position of the roadway wall at the fault position of the coal mine, and the steel pipe arch columns 1 are connected with drill holes extending into the roadway wall 16 A plurality of grouting anchor pipe assemblies and a plurality of suction pipe assemblies inside, the detachable connection of the outer ends of the grouting anchor pipe assembly and the suction pipe assembly is provided with a suction joint assembly and a grouting joint assembly 15, the The depth of the inner end of the suction pipe assembly is greater than the depth of the inner end...
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The invention discloses a water gushing-out resisting structure of a coal mine fault. A plurality of radial tensioning main ribs which are arranged by being tightly attached to a roadway wall and arranged in a radial mode are arranged between a tensioning base assembly and steel pipe arch pillars radially in a tensioning mode, branch reinforced steel bars which are arranged perpendicular to the radial tensioning main ribs are arranged on the radial tensioning main ribs, two ends of the branch reinforced steel bars extend and are fixed into the roadway wall, spraying anchoring solidification grout are arranged in areas in which the radial tensioning main ribs and the branch reinforced steel bars are arranged, of the roadway wall in a spraying mode. According to the water gushing-out resisting structure of the coal mine fault, cement concrete is injected into the steel pipe arch pillars through grouting ports, so that the strength of the steel pipe arch pillars is improved; and the steelpipe arch pillars are connected with guiding pipes through fasteners, the integrity of the water gushing-out resisting structure is improved, fine cement grout is pressed into the guiding pipes fromconnecting pipes through an external cement pumping truck, a part of the fine cement grout oozes out from liquid oozing holes, and the coal mine fault is enabled to form a sealing condition.
Description
technical field [0001] The invention relates to the technical field of coal mining, in particular to a coal mine fault waterproof structure. Background technique [0002] A fault is a structure that is displaced by a rock layer or rock mass. Its structure is different in size and scale. The formation of a fault will damage the integrity of the rock layer. If it encounters a water-rich layer, it will cause Faults are filled with water, causing great difficulties and potential safety hazards to coal mine mining. [0003] Before coal mining, it is necessary to explore the rock formations and avoid faults as much as possible. However, some faults cannot be avoided. They must be reinforced and waterproofed to prevent the influx of groundwater and cause the faults to collapse. Therefore, those skilled in the art provide a coal mine fault waterproof structure to solve the problems raised in the above-mentioned background technology. Contents of the invention [0004] The purpos...
Claims
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IPC IPC(8): E21D11/38E21D11/18E21D11/26E21D11/10
CPCE21D11/10E21D11/18E21D11/26E21D11/38
Inventor 武泉森武泉林
Owner JINING UNIV