Liftable positioning rack system for long and large pipe shed of high-speed railway tunnel

Abstract

A liftable positioning rack system for a long and large pipe shed of a high-speed railway tunnel is characterized in that a horizontal moving system consists of a bottom guide beam, a hydraulic jack and a bottom cross beam, and the hydraulic jack is connected with the bottom guide beam and the bottom cross beam; the vertical displacement system is composed of four stand columns, inclined struts, lifting chain blocks and middle transverse supporting rods, the four stand columns are arranged on the bottom cross beam, the four inclined struts are connected with the bottom cross beam and the stand columns, the two middle transverse supporting rods are connected with the two transverse stand columns and the inclined struts, the four lifting chain blocks are arranged on the tops of the stand columns, and the lifting chain blocks are arranged on the bottom cross beam. And the device is connected with a drilling construction platform through four lifting chain blocks. A directional drilling machine is placed on the drilling machine platform for drilling operation. During tunnel drilling, the height of the drilling machine is adjusted by lifting the drilling machine platform through the lifting chain block, and then the position of the drilling machine is moved through the horizontal moving system and the vertical displacement system, so that the drilling hole position is accurately positioned. The drilling machine can be rapidly assembled in a tunnel, and the rapid positioning and drilling functions of a large number of drilled holes in drilling machine construction are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel pipe-roof construction, and in particular relates to a liftable positioning platform system for a long and large pipe-roof in a high-speed railway tunnel. Background Art

[0002] At present, tunnel excavation is a high-risk operation, especially when the tunnel passes through a shallow buried section or an existing structure. In order to ensure construction safety, a large pipe shed is usually used for reinforced support. The tunnel advance large pipe shed construction technology is relatively mature, but the traditional large pipe shed construction process has problems such as short construction length, limited pipe diameter, multiple construction cycles in sections, and uncontrollable construction direction, which leads to long construction period and difficulty in construction organization.

[0003] In view of the above problems, how to solve the drawbacks of traditional large pipe shed construction technology is mainly studied from several aspects such as equipment selection, pipe shed positioning, improving efficiency, reducing costs, and ensuring safety. A long and large pipe shed rapid positioning drilling construction technology that can be completed in a "long distance, large diameter, and one-time" is needed. Summary of the invention

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a liftable positioning platform system for long and large pipe roofs in high-speed railway tunnels, so as to meet the controllable construction length, pipe diameter, construction direction, etc. of the long and large pipe roofs in the tunnels, so as to ensure that the subsequent tunnel construction quality meets the acceptance standards.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A high-speed railway tunnel long and long pipe shed liftable positioning platform system, comprising a horizontal movement system (1), a vertical displacement system (2) and a drilling construction platform (3), characterized in that: The horizontal movement system (1) is composed of a bottom guide beam (4), a hydraulic jack (5) and a bottom cross beam (6), wherein the hydraulic jack (5) is connected to the bottom guide beam (4) and the bottom cross beam (6); The vertical displacement system (2) is composed of four columns (7), diagonal braces (8), lifting and falling chains (10) and middle transverse braces (9). The four columns are arranged on the bottom crossbeam (6), the four diagonal braces connect the bottom crossbeam (6) and the columns (7), the two middle transverse braces (9) connect the two transverse columns (7) and the diagonal braces (8), and the four lifting and falling chains (10) are arranged on the top of the columns (7) and connected to the drilling construction platform (3) through the four lifting and falling chains (10).

[0006] The components are all I-beam bodies, and the I-beam bodies are connected by high-strength bolts.

[0007] The lifting chain (10) is an electric chain.

[0008] The drilling platform (3) is welded into an integral body by I-beams, is arranged horizontally, is connected to the crawling track nut and the column (7) through a lifting chain (10), and a directional drilling rig (11) is arranged on it.

[0009] The upright column (7) is an integral unit and is vertically placed on the four top corners of the horizontal moving system (1), and can move forward, backward, left and right along the horizontal moving system (1).

[0010] The four upright posts (7) and the four lifting and falling chains (10) are erected in one-to-one correspondence, and on the corresponding four upright posts (7), the four lifting and falling chains (10) form an adjustable single-layer structure in the vertical direction.

[0011] The present invention has the following effects: 1) The device has a simple structure, strong operability, is easy to operate, convenient to use, safe and versatile, can be quickly assembled in the tunnel, and horizontal positioning can be achieved through the movement of the horizontal movement system. The vertical displacement system can adjust the height of the drilling platform without restriction to meet the determination of the vertical position. With the help of a directional drilling rig, the vertical angles of the drill bit and the drill rod can be accurately adjusted to meet the rapid positioning and drilling functions of a large number of holes in the drilling rig construction.

[0012] 2) According to statistical analysis, the use of this system reduces the construction period by an average of about 38 days compared with traditional large pipe shed construction, greatly improving construction efficiency.

[0013] 3) By using the fast positioning drilling system technology of the long tunnel pipe shed, the material and labor costs incurred in the construction of multiple guide walls are reduced; the downtime and entry and exit costs of pipe shed construction personnel and tunnel construction personnel are reduced; while reducing the circular construction, the installation costs and material costs of the hole pipe, pipe shed, pipe shed steel cage, grouting material, etc. used in the circular overlap part are reduced, saving a large amount of cost investment for the construction unit.

[0014] 4) Compared with the cyclic construction, the one-time construction technology of the advanced large pipe shed reduces the number of cyclic cross operations, and also reduces the unstable factors of tunnel construction and reduces the time and cost of tunnel construction. Work safety risks.

[0015] The quick-position drilling system can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a side schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0019] Among them, 1 is the horizontal movement system, 2 is the vertical displacement system, 3 is the drilling rig construction platform, 4 is the guide beam, 5 is the hydraulic jack, 6 is the bottom beam, 7 is the column, 8 is the diagonal brace, 9 is the middle horizontal brace, 10 is the lifting chain, and 11 is the directional drilling rig. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , 2 As shown in , 3, a high-speed railway tunnel long pipe shed can be raised and lowered and positioned as a platform system, comprising a horizontal movement system (1), a vertical displacement system (2) and a drilling construction platform (3), characterized in that: The horizontal movement system (1) is composed of a bottom guide beam (4), a hydraulic jack (5) and a bottom cross beam (6), wherein the hydraulic jack (5) is connected to the bottom guide beam (4) and the bottom cross beam (6); The vertical displacement system (2) is composed of four columns (7), diagonal braces (8), lifting and falling chains (10) and middle transverse braces (9). The four columns are arranged on the bottom crossbeam (6), the four diagonal braces connect the bottom crossbeam (6) and the columns (7), the two middle transverse braces (9) connect the two transverse columns (7) and the diagonal braces (8), and the four lifting and falling chains (10) are arranged on the top of the columns (7) and connected to the drilling construction platform (3) through the four lifting and falling chains (10).

[0022] The horizontal movement system is used to be set up on the ground behind the excavation surface in the tunnel; through the work of the hydraulic jack, it drives the vertical displacement system to move horizontally on the bottom guide beam to achieve horizontal positioning.

[0023] Four load-bearing fall chains form a single-layer structure with adjustable position in the vertical direction. The electrically controlled lifting fall chains enable the drilling rig platform to move vertically on the columns to achieve lifting and lowering, and when stopping working, the platform stops at a suitable position to achieve vertical positioning.

[0024] The directional drill is placed on the drilling platform for drilling operations.

[0025] When drilling a tunnel, the drilling rig height is adjusted by lifting the drilling rig platform using four lifting chains, and then the drilling rig position is moved using the horizontal movement system and vertical displacement system to accurately locate the drilling hole.

[0026] It can be quickly assembled in the tunnel to meet the rapid positioning and drilling functions of a large number of holes during drilling rig construction.

Claims

1. A high-speed railway tunnel long pipe shed liftable positioning platform system, comprising a horizontal movement system (1), a vertical displacement system (2) and a drilling construction platform (3), characterized in that: The horizontal movement system (1) is composed of a bottom guide beam (4), a hydraulic jack (5) and a bottom cross beam (6), wherein the hydraulic jack (5) is connected to the bottom guide beam (4) and the bottom cross beam (6); The vertical displacement system (2) is composed of four columns (7), diagonal braces (8), lifting and falling chains (10) and middle transverse braces (9). The four columns are arranged on the bottom crossbeam (6), the four diagonal braces connect the bottom crossbeam (6) and the columns (7), the two middle transverse braces (9) connect the two transverse columns (7) and the diagonal braces (8), and the four lifting and falling chains (10) are arranged on the top of the columns (7) and connected to the drilling construction platform (3) through the four lifting and falling chains (10).

2. The system for lifting and positioning a long pipe shed for a high-speed railway tunnel according to claim 1 is characterized in that: The components are all I-beam bodies, and the I-beam bodies are connected by high-strength bolts.

3. The system for lifting and positioning a long pipe shed for a high-speed railway tunnel according to claim 1 is characterized in that: The lifting chain (10) is an electric chain.

4. The system for lifting and positioning a long pipe shed for a high-speed railway tunnel according to claim 1 is characterized in that: The drilling platform (3) is welded into an integral body by I-beams, is arranged horizontally, is connected to the crawling track nut and the column (7) through a lifting chain (10), and a directional drilling rig (11) is arranged on it.

5. The system for lifting and positioning a long pipe shed for a high-speed railway tunnel according to claim 1 is characterized in that: The upright column (7) is an integral unit and is horizontally placed on the horizontal moving system (1), and can move forward, backward, left and right along the horizontal moving system (1).

6. The system of a high-speed railway tunnel long pipe shed liftable positioning platform according to claim 1, characterized in that: The four upright posts (7) and the four lifting and falling chains (10) are erected in one-to-one correspondence, and on the corresponding four upright posts (7), the four lifting and falling chains (10) form an adjustable single-layer structure in the vertical direction.

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