CN-116857004-B - Construction method of energy-absorbing ventilation structure suitable for underground mine underground shock wave

CN116857004BCN 116857004 BCN116857004 BCN 116857004BCN-116857004-B

Abstract

The invention relates to a construction method of an energy-absorbing ventilation structure suitable for underground mine underground shock waves, which comprises a frame structure and a supporting framework, wherein the frame structure and the supporting framework are distributed in a front-back opposite mode along the ventilation direction of a roadway, the left end and the right end of the supporting framework are respectively connected with surrounding rocks of the roadway through detachable connecting pieces, the frame structure comprises a plurality of frame units which are mutually spliced on the section of the roadway, each frame unit comprises a splicing frame, one side of each frame unit is paved with protective cloth, the splicing frame is connected with the supporting framework in a sliding mode along the front-back direction, and elastic pieces which deform along the front-back direction are arranged between the splicing frame and the supporting framework. The structure can bear blast shock waves, separate wind flow, can not damage a frame structure due to interaction among the frame units caused by uneven distribution of blast shock wave intensity on the section of a roadway because the frame units can move independently, is convenient to assemble and disassemble, overcomes the defects of long construction period and high labor cost, can be reused, improves the utilization rate and reduces the cost.

Inventors

LONG YI
LI BINGLEI

Assignees

紫金矿业集团股份有限公司
福州大学

Dates

Publication Date: 20260508
Application Date: 20230720

Claims (9)

1. A construction method of an energy-absorbing ventilation structure suitable for underground mine underground shock waves is characterized by comprising the following steps of (1) leveling the ground of a roadway and carrying out anchor picking on a roadway top plate, (2) horizontally and equally-spacing installing a plurality of jacks on the leveled ground, installing vertical support steel pipes on telescopic rods of the jacks, drilling and installing expansion bolts at corresponding positions of the roadway top plate, sleeving wood plugs on exposed parts of the bolts, and connecting the wood plugs with tops of the vertical support steel pipes, (3) starting the jacks to enable the vertical support steel pipes to be propped against the roadway top plate and attached to the vertical support steel pipes, (4) vertically and alternately installing a plurality of transverse support steel pipes with drill holes on the vertical support steel pipes, connecting the vertical support steel pipes with the transverse support steel pipes through buckles, penetrating connecting sliding rods at the drill holes, (5) manufacturing a plurality of frame units, welding a metal net on one side surface of each frame unit in advance, binding three-protection cloth on the metal net, coating resin glue on the bound positions for sealing, finally sleeving four corners of the frame units on the corresponding connecting sliding rods, and connecting the four corners of the frame units with the corresponding sliding rods with the tops of the corresponding sliding rods, and arranging the screw nuts on the screw caps on the side surfaces of the frame units, and sealing the screw caps on the side of the frame units; The structure of the structure comprises a frame structure and a supporting framework, wherein the frame structure and the supporting framework are distributed in the front and the rear directions of the ventilation direction of the roadway relatively, the left end and the right end of the supporting framework are respectively connected with surrounding rocks of the roadway through detachable connecting pieces, the frame structure comprises a plurality of frame units which are mutually spliced on the section of the roadway, each frame unit comprises a splicing frame, one side of each frame unit is paved with protective cloth, the splicing frame is connected with the supporting framework in a sliding mode in the front and the rear directions, and elastic pieces which deform in the front and the rear directions are arranged between the splicing frame and the supporting framework.
2. The construction method of the underground mine underground shock wave energy absorption ventilation structure is characterized in that the supporting framework comprises a plurality of transverse supporting steel pipes and a plurality of vertical supporting steel pipes which are distributed in a staggered mode in the horizontal and vertical directions, the transverse supporting steel pipes are distributed at intervals in the vertical direction, the vertical supporting steel pipes are distributed at intervals in the horizontal direction, and the intersections of the transverse supporting steel pipes and the vertical supporting steel pipes are connected and fixed through buckles.
3. The method for constructing an energy-absorbing and ventilating structure for underground mine underground shock waves according to claim 2, wherein the left end and the right end of each transverse supporting steel pipe are respectively provided with a detachable connecting piece.
4. The construction method of the underground mine underground shock wave energy absorption ventilation structure according to claim 3, wherein the detachable connecting piece is an L-shaped connecting plate, long sides of the L-shaped connecting plate are provided with long holes, short sides of the L-shaped connecting plate are provided with round holes, the long sides of the L-shaped connecting plate are connected with the transverse supporting steel pipes through bolts penetrating through the long holes, and the short sides of the L-shaped connecting plate are connected with roadway surrounding rocks through expansion bolts penetrating through the round holes.
5. The construction method of the underground mine underground shock wave energy absorption ventilation structure is characterized in that a plurality of frame units form a plurality of rows from top to bottom along the section of a roadway, each row of frame units corresponds to the positions of two adjacent transverse supporting steel pipes, the spliced frames of the frame units are rectangular annular, sliding through holes penetrating in the front-back direction are formed in the peripheral vertex angles of the spliced frames, connecting sliding rods are arranged in the sliding through holes in a sliding mode, the rear ends of the connecting sliding rods are fixedly connected with the transverse supporting steel pipes, the elastic pieces are springs sleeved on the outer sides of the connecting sliding rods, and the front ends and the rear ends of the springs are respectively abutted against the spliced frames and the transverse supporting steel pipes.
6. The construction method of the underground mine underground shock wave energy absorption ventilation structure according to claim 5, wherein the front end of the connecting sliding rod is connected with a limit nut in a threaded mode, the limit nut is located on the front side of the splicing frame, the rear end of the connecting sliding rod penetrates through the transverse supporting steel pipe and is locked and fixed with the transverse supporting steel pipe through a pair of fastening nuts distributed on the front side and the rear side of the transverse supporting steel pipe.
7. The construction method of the underground mine underground shock wave energy absorption ventilation structure is characterized in that the vertical support steel pipe is arranged on the rear side of the transverse support steel pipe, the buckle comprises a pair of semi-annular anchor ear plates with openings facing the front side, the anchor ear plates are distributed up and down and are sleeved on the outer sides of the vertical support steel pipe, connecting plates are respectively arranged at the left end and the right end of each anchor ear plate, and the connecting plates on the same side of the anchor ear plates are connected with U-shaped bolts clamped on the transverse support steel pipe.
8. The method for constructing the underground mine underground shock wave energy-absorbing ventilation structure according to claim 1, wherein the metal nets fixed on the spliced frames are arranged in parallel beside the protective cloth, and the protective cloth and the metal nets are distributed in a front-back opposite mode along the ventilation direction of the roadway.
9. The construction method of the underground mine underground shock wave energy absorption ventilation structure is characterized in that a positioning tray is arranged at the lower end of each vertical supporting steel pipe, a force feeding device for feeding upward lifting force is arranged at the bottom of each supporting framework, the force feeding device comprises a plurality of jacks corresponding to the positions of the plurality of vertical supporting steel pipes, and the telescopic ends of the jacks are connected with the positioning trays corresponding to the positions.

Description

Construction method of energy-absorbing ventilation structure suitable for underground mine underground shock wave Technical field: The invention relates to a construction method of an energy-absorbing ventilation structure suitable for underground mine underground shock waves. The background technology is as follows: The mine ventilation structure is a wind flow regulating and controlling facility in a mine ventilation system, and is used for ensuring that wind flows along a route required by production and a device for guiding the wind flow, blocking the wind flow and regulating the air quantity. At present, the structure for guiding and controlling the wind flow and the structure for blocking the wind flow are mainly realized by manually building the wall, but the construction cost is relatively high, the construction period is relatively long and generally needs 6-10 days, the construction materials are required to be purchased locally, the time and the labor are consumed in the transportation process, the labor intensity is high, meanwhile, the installation cost is relatively high due to the influence of the underground mine environment, the construction process is complex, the cost is high, and meanwhile, the structures belong to permanent structures and cannot be detached and reused. The invention comprises the following steps: the invention aims at improving the problems in the prior art, namely the technical problem to be solved by the invention is to provide a construction method of an energy-absorbing ventilation structure suitable for underground mine underground shock waves, which is reasonable in design, improves the convenience of installation, can bear blasting shock waves and blocks wind flow. The construction method comprises the following steps of (1) leveling the ground of a roadway, prying and anchoring a top plate of the roadway, (2) horizontally and equidistantly installing a plurality of jacks on the leveled ground, installing vertical support steel pipes on telescopic rods of the jacks, drilling expansion bolts at corresponding positions of the top plate of the roadway, sleeving wood plugs on exposed parts of the bolts, connecting the wood plugs with the tops of the vertical support steel pipes, (3) starting the jacks to enable the vertical support steel pipes to be abutted against the top plate of the roadway, (4) vertically and alternately installing a plurality of transverse support steel pipes with holes on the vertical support steel pipes, connecting the vertical support steel pipes with the transverse support steel pipes through buckles, penetrating connecting sliding rods at the holes, 5) manufacturing a plurality of frame units, welding a metal net on one side surface of each frame unit in advance, binding three protection cloths on the metal net, coating resin glue on the binding places for sealing, finally sleeving four corners of the frame units on corresponding side surfaces of the frame units, connecting the four corner units with the iron plates on the corresponding side surfaces of the frame units through bolts, and connecting the four corner units with the corresponding side surfaces of the iron plates with the bolts, and sealing the top plates on the side surfaces of the frame units, and sealing the side surfaces of the frame units. Further, the structure of the structure comprises a frame structure and a supporting framework, wherein the frame structure and the supporting framework are distributed in front and back relative to each other along the ventilation direction of the roadway, the left end and the right end of the supporting framework are respectively connected with surrounding rocks of the roadway through detachable connecting pieces, the frame structure comprises a plurality of frame units which are spliced with each other on the section of the roadway, each frame unit comprises a splicing frame, one side of each frame unit is paved with protective cloth, the splicing frame is connected with the supporting framework in a sliding mode along the front and back direction, and elastic pieces which deform along the front and back directions are arranged between the splicing frame and the supporting framework. Further, the supporting framework comprises a plurality of transverse supporting steel pipes and a plurality of vertical supporting steel pipes which are distributed in a transverse and vertical staggered mode, the transverse supporting steel pipes are distributed at intervals along the vertical direction, the vertical supporting steel pipes are distributed at intervals along the transverse direction, and the intersecting parts of the transverse supporting steel pipes and the vertical supporting steel pipes are fixedly connected through buckles. Further, the left end and the right end of each transverse supporting steel pipe are respectively provided with a detachable connecting piece. Further, the detachable connecting piece is an L-shaped connecting pla