A new type of wind bridge reinforcement structure in coal mines

Abstract

The utility model relates to a novel wind bridge reinforcement structure underground in a coal mine, which belongs to the technical field of coal mine construction, and specifically comprises a wind bridge arranged at the intersection of an air intake tunnel and a return air tunnel, a first reinforcement component is installed at the bottom of the bridge deck of the wind bridge, a second reinforcement component is also installed on the side wall of the wind bridge, the first reinforcement component and the second component are connected by a plurality of support beam components, the support beam component comprises a support beam arranged at the bottom of the first reinforcement component and right-angle support frames installed at both ends of the support beam, the right-angle support frames are fixed on the second component, the utility model has a simple structure and a reasonable design, can effectively improve the bearing capacity of the wind bridge and prolong its service life.

Description

Technical Field

[0001] The utility model relates to a new type of wind bridge reinforcement structure in a coal mine, belonging to the technical field of coal mine construction. Background Art

[0002] The function of underground wind bridge is to separate the airflow of the air intake tunnel and the return air tunnel that intersect at the same level to prevent mixing and affect the ventilation quality and safe production of the mine. At the same time, the two tunnels still retain their use functions. When encountering a mine with obvious mine pressure or "upper" tunnel transportation, the existing wind bridge structure is very easy to deform, resulting in problems such as bending of I-beams and cracking of walls, which poses a hidden danger to ventilation safety. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a new type of coal mine underground wind bridge reinforcement structure which has a simple structure, reasonable design, and can effectively improve the bearing capacity of the wind bridge and extend the service life.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a new type of wind bridge reinforcement structure underground in a coal mine, including a wind bridge arranged at the intersection of an air intake tunnel and a return air tunnel, a first reinforcement component is installed at the bottom of the bridge deck of the wind bridge, and a second reinforcement component is also installed on the side wall of the wind bridge, the first reinforcement component and the second component are connected by a plurality of support beam components, the support beam component includes a supporting beam arranged at the bottom of the first reinforcement component and right-angle support frames installed at both ends of the supporting beam, and the right-angle support frames are fixed on the second component.

[0005] Preferably, the first reinforcement assembly includes a plurality of I-beam cross beams installed at the bottom of the wind bridge deck and a plurality of I-beam longitudinal beams installed at the bottom of the I-beam cross beams, and the I-beam cross beams and the I-beam longitudinal beams are fixedly connected by U-bolts.

[0006] Preferably, the second reinforcement component includes a steel fixing groove, a reinforcement cross beam, and a reinforcement longitudinal beam. The steel fixing groove is arranged at the bottom of the side wall of the wind bridge, and the steel fixing groove is fixed to the ground by a ground anchor. The reinforcement cross beam is arranged on the outside of the side wall of the wind bridge, and the reinforcement longitudinal beam is arranged on the outside of the reinforcement cross beam, and the bottom of the reinforcement longitudinal beam is supported in the steel fixing groove. A pad is arranged between the reinforcement longitudinal beam and the side wall of the wind bridge, and the reinforcement cross beam and the reinforcement longitudinal beam are fixed to the side wall of the wind bridge by anchor rods. An insertion hole is arranged on the top of the reinforcement longitudinal beam, and one side of the right-angle support frame is inserted in the insertion hole.

[0007] Compared with the prior art, the utility model has the following technical effects: the utility model performs interlocking reinforcement on the front and side walls of the wind bridge, and forms a stable frame structure between the bottom surface and the side walls of the wind bridge through two groups of reinforcement components, thereby ensuring the stability of the wind bridge. After long-term monitoring underground, the deformation of the wind bridge is within a controllable range, avoiding the mine from frequently repairing the wind bridge and investing a lot of manpower and material resources. At the same time, it is beneficial to the ventilation management of the mine and creates a safe environment for the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 It is a schematic diagram of the connection structure of the I-beam cross beam and the I-beam longitudinal beam in the utility model.

[0010] Figure 3 It is a structural schematic diagram of the second reinforcement component in the utility model. DETAILED DESCRIPTION

[0011] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0012] like Figures 1 to 3 As shown, a new type of wind bridge reinforcement structure in a coal mine comprises a wind bridge 1 arranged at the intersection of an air intake tunnel and a return air tunnel, a first reinforcement component 2 is installed at the bottom of the bridge deck of the wind bridge 1, and a second reinforcement component 3 is also installed on the side wall of the wind bridge 1, the first reinforcement component 2 and the second component 3 are connected by a plurality of support beam components, and the support beam component 4 comprises a support beam 5 arranged at the bottom of the first reinforcement component and right-angle support frames 6 installed at both ends of the support beam 5, and the right-angle support frames 6 are fixed on the second component 3.

[0013] In the utility model, the first reinforcement component 2 and the second component 3 are arranged between the bottom of the bridge deck and the side wall of the wind bridge. The first reinforcement component 2 is fixedly connected to the original steel beam of the bridge deck to reinforce the bridge deck, and the second component 3 is fixed to the side wall of the wind bridge to reinforce the side wall of the wind bridge. At the same time, the first reinforcement component 2 and the second component 3 are also connected through the support beam component 4, so that the first reinforcement component 2, the second component 3 and the support beam component 4 form a stable frame structure, which greatly improves the bearing capacity of the wind bridge and effectively avoids the deformation of the wind bridge.

[0014] The first reinforcement assembly 2 includes a plurality of I-beam cross beams 7 installed at the bottom of the wind bridge deck and a plurality of I-beam longitudinal beams 8 installed at the bottom of the I-beam cross beams, and the I-beam cross beams 7 and the I-beam longitudinal beams 8 are fixedly connected by U-bolts 9. The first reinforcement assembly 2 adopts a combined structure in which the I-beam cross beams 7 and the I-beam longitudinal beams 8 are arranged vertically, which is simple and convenient to install and has high strength.

[0015] The second reinforcement component 3 includes a steel fixing groove 10, a reinforcement beam 11, and a reinforcement longitudinal beam 12. The steel fixing groove 10 is arranged at the bottom of the side wall of the wind bridge 1, and the steel fixing groove 10 is fixed to the ground through a ground anchor. The reinforcement beam 11 is arranged on the outside of the side wall of the wind bridge 1, and the reinforcement longitudinal beam 12 is arranged on the outside of the reinforcement beam 11, and the bottom of the reinforcement longitudinal beam 12 is supported in the steel fixing groove 10. A cushion block 13 is arranged between the reinforcement longitudinal beam 12 and the side wall of the wind bridge 1. The reinforcement beam 11 and the reinforcement longitudinal beam 12 are fixed to the side wall of the wind bridge 1 through an anchor rod 14. The top of the reinforcement longitudinal beam 12 is provided with an insertion hole, and one side of the right-angle support frame 6 is inserted into the insertion hole. The steel fixing groove 10 is arranged at the bottom of the side wall of the wind bridge, and mainly plays a role in preventing subsidence. At the same time, the side wall of the wind bridge is anchored by the reinforcement beam 11 and the reinforcement longitudinal beam 12 to prevent the side wall from collapsing. In addition, the reinforced longitudinal beam is supported in the steel fixing groove 10, and the top is connected to the support beam assembly 4 to form a stable frame structure, thereby improving the deformation resistance of the wind bridge and reducing the number of maintenance times.

[0016] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A new type of wind bridge reinforcement structure in a coal mine, comprising a wind bridge arranged at the intersection of an air inlet tunnel and a return air tunnel, characterized in that: A first reinforcement component is installed at the bottom of the bridge deck of the wind bridge, and a second reinforcement component is also installed on the side wall of the wind bridge. The first reinforcement component and the second component are connected by multiple support beam components. The support beam component includes a supporting beam arranged at the bottom of the first reinforcement component and right-angle support frames installed at both ends of the supporting beam, and the right-angle support frames are fixed on the second component.

2. The novel wind bridge reinforcement structure for underground coal mines according to claim 1 is characterized by: The first reinforcement component includes a plurality of I-beam cross beams installed at the bottom of the wind bridge deck and a plurality of I-beam longitudinal beams installed at the bottom of the I-beam cross beams. The I-beam cross beams and the I-beam longitudinal beams are fixedly connected by U-bolts.

3. The novel wind bridge reinforcement structure for underground coal mines according to claim 2 is characterized in that: The second reinforcement component includes a steel fixing groove, a reinforcement cross beam, and a reinforcement longitudinal beam. The steel fixing groove is arranged at the bottom of the side wall of the wind bridge, and the steel fixing groove is fixed to the ground by a ground anchor. The reinforcement cross beam is arranged on the outside of the side wall of the wind bridge, and the reinforcement longitudinal beam is arranged on the outside of the reinforcement cross beam, and the bottom of the reinforcement longitudinal beam is supported in the steel fixing groove. A pad is arranged between the reinforcement longitudinal beam and the side wall of the wind bridge, and the reinforcement cross beam and the reinforcement longitudinal beam are fixed to the side wall of the wind bridge by anchor rods. An insertion hole is arranged on the top of the reinforcement longitudinal beam, and one side of the right-angle support frame is inserted in the insertion hole.

Images