Railway tunnel construction supporting device

Abstract

The utility model discloses a railway tunnel construction supporting device which comprises supporting side plates and supporting top plates, the tops of the supporting side plates are fixedly connected and combined with the bottoms of the corresponding supporting top plates into a whole, and a disassembly and assembly combined assembly is combined at the joint position of the two supporting top plates. The tunnel supporting device has the advantages that the supporting side plates and the supporting top plate on the two sides can abut against the two sides of the interior of a tunnel to complete supporting operation in the mode that the two limiting wing plates of the assembling and disassembling combination assembly abut against each other, and the supporting mode of the tunnel is simple and easy to achieve; meanwhile, through the mode that a matching sleeve of the disassembly and assembly combination assembly is in vertical sliding fit with two close limiting wing plates and a limiting rod is in transverse sliding fit with a limiting hole, rapid detachable combination of the two limiting wing plates can be achieved, and then the supporting top plates on the two sides can be rapidly combined together to be prevented from being separated; the combination mode of the two supporting top plates is simple and easy to achieve.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary components for railway tunnel construction, specifically to a railway tunnel construction support device. Background Technology

[0002] During railway tunnel construction, due to the low strength of the soft rock, rapid support and reinforcement are necessary after tunnel excavation. However, existing tunnel supports are weak, easily leading to problems such as twisting and deformation of the steel arch support, cracking and spalling of shotcrete, and initial support collapse. In severe cases, these issues affect the construction quality and safety of the tunnel, delaying the construction period. Furthermore, existing anchor bolts are directly welded to the steel arch support, making installation and transportation inconvenient.

[0003] A search revealed a Chinese patent document disclosing a steel arch support structure for soft rock tunnels [Application No.: CN202020173255.9; Publication No.: CN211777490U]. This steel arch support structure for soft rock tunnels includes a steel arch, a connecting assembly detachably connected to the steel arch, and a locking anchor bolt group detachably connected to the connecting assembly and used to cooperate with the connecting assembly to lock and support the steel arch. Although the above device can support the tunnel, in practice, it is not only cumbersome to assemble, making it difficult to achieve smooth construction of the support mechanism, but it also lacks a suitable reinforcing support structure, resulting in poor stability and reliability of the support structure during use. Utility Model Content

[0004] The purpose of this utility model is to provide a railway tunnel construction support device to solve the above problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a railway tunnel construction support device, including support side plates and support top plates. There are two support side plates and two support top plates, which are located on both sides. The top of each support side plate is fixedly connected to the bottom of the corresponding support top plate to form a whole, so as to support the inner side wall and the inner top wall of the railway tunnel respectively by means of the support side plates and the support top plates.

[0007] The end faces of the support top plates on both sides are in close contact with each other, and the joint position of the two support top plates is equipped with a disassembly assembly, which is used to disassemble and assemble the two support top plates together.

[0008] The lower two sides of the disassembly and assembly assembly are each provided with a cross brace reinforcement assembly, which is used to reinforce and support the corresponding side support plates and the top support plate.

[0009] Preferably, the support side plates are rectangular vertical plates that fit against the inner wall surface of the railway tunnel, and the support top plates are arc-shaped plates that fit against the inner top wall surface of the railway tunnel.

[0010] Preferably, the lower part of the support side plate is provided with multiple connecting holes laterally, and each connecting hole is coaxially inserted with a connector for temporary fixation by driving into the tunnel side wall.

[0011] Preferably, all the connecting parts are bolts.

[0012] Preferably, the assembly includes a limiting wing plate and a fitting sleeve. The limiting wing plate extends vertically and is fixed at the lower part of the joint position of the two support top plates, and the two limiting wing plates are close to each other. At the same time, the outer middle part of the limiting wing plate is provided with a limiting hole in the transverse direction. The fitting sleeve is fitted on the outer side of the two close-to-each limiting wing plates in a vertical sliding fit. The lower part of both sides of the fitting sleeve is provided with the cross brace reinforcement component. The upper part of both sides of the fitting sleeve is provided with a mounting hole in the transverse direction. The mounting holes are all through holes and are transversely coaxial with the corresponding limiting holes. The mounting holes are coaxially inserted with limiting rods in a sliding fit. The inner ends of the limiting rods on both sides are in transverse sliding fit with the corresponding limiting holes.

[0013] Preferably, the outer ends of the limiting rods on both sides, which are far apart from each other, are coaxially fixed with handles. The portion of the limiting rod located between the corresponding handle and the outer side of the mating sleeve is coaxially fitted with a spring, and the two ends of the spring are respectively fixedly connected to the corresponding handle and the outer side of the mating sleeve.

[0014] Preferably, the horizontal cross-sectional shape of both the mating sleeve and the limiting wing plate is rectangular.

[0015] Preferably, each of the cross bracing reinforcement components includes a strut and an elastic end. Several struts are horizontally fixed to the lower part of both outer sides of the mating sleeve through a connecting sleeve. The outer ends of the struts on both sides, which are far apart from each other, are coaxially fixed with the elastic end. When the mating sleeve and the limiting wing plate are combined into place, the elastic end is pressed against the inner top wall of the corresponding support side plate.

[0016] Preferably, the inner top wall of each support side plate is fixedly connected with a positioning bracket in an inverted U-shape. The number of positioning brackets corresponds to the number of support rods, and the support rods and the elastic ends are all inserted into the corresponding positioning brackets from bottom to top in a vertical sliding engagement manner.

[0017] Preferably, the elastic end is the same diameter as the support rod, and the support rod and the corresponding connecting sleeve are coaxially interference-fitted, and the elastic end is coaxially fixed to the end of the corresponding support rod by adhesive bonding.

[0018] The railway tunnel construction support device described above, specifically used for supporting the interior of a railway tunnel, allows the two limiting wing plates of the disassembly and assembly assembly to be pressed together, enabling the support side plates and the support top plate on both sides to be placed against the interior of the tunnel for support operations. This method of tunnel support is simple and easy to implement. Furthermore, the vertical sliding engagement of the fitting sleeve with the two pressed limiting wing plates and the horizontal sliding engagement of the limiting rod with the limiting hole of the disassembly and assembly assembly allow for the quick and easy disassembly and assembly of the two limiting wing plates. This, in turn, allows the support top plates on both sides to be quickly assembled together to prevent separation. The assembly method of the two support top plates is simple and easy to implement, facilitating the rapid assembly and placement of the support side plates and the support top plate against the interior of the tunnel, thus improving the efficiency of support construction. Since the fitting sleeve can be vertically slid away from the limiting wing plate simply by pulling the limiting rod out of the limiting hole, the two support... The method of disassembling and assembling the top plate is simple and easy to implement, facilitating the subsequent separation of the two limiting wing plates. This allows for the smooth removal of the support side plates and the support top plate from the tunnel interior to complete the support dismantling operation. Furthermore, since the mating sleeve of the disassembly and assembly assembly is equipped with cross bracing reinforcement components on both sides, when the mating sleeve and the limiting wing plate are assembled, the cross bracing reinforcement components' struts are horizontally positioned against the top sidewall of the support side plate. This struts provide enhanced support for the support side plates and the support top plate, improving their stability and reliability during support use. Simultaneously, when the mating sleeve and the limiting wing plate are separated, the struts can be disassembled by moving downwards from the bottom of the positioning bracket, further facilitating the smooth removal of the support side plates and the support top plate from the tunnel interior to complete the support dismantling operation.

[0019] The beneficial effects are as follows: 1. By using the two limiting wing plates of the disassembly and assembly assembly to press together, the support side plates and support top plates on both sides of the tunnel can be pressed together to complete the support operation. The support method for the tunnel is simple and easy to implement. At the same time, by using the vertical sliding fit between the fitting sleeve of the disassembly and assembly assembly assembly and the two pressed limiting wing plates and the horizontal sliding fit between the limiting rod and the limiting hole, the two limiting wing plates can be quickly disassembled and assembled. Then, the support top plates on both sides can be quickly assembled together to prevent separation. The assembly method of the two support top plates is simple and easy to implement, which helps to quickly assemble the support side plates and support top plates on both sides of the tunnel and press them together to the inside of the tunnel, thus improving the support construction efficiency.

[0020] 2. Only by pulling the limiting rod out of the limiting hole can the mating sleeve slide vertically and separate from the limiting wing plate. The method of disassembling and assembling the two support top plates is simple and easy to achieve, which makes it easy to separate the two limiting wing plates from each other in the future. This allows the support side plates and support top plates on both sides to be removed from the inside of the tunnel to complete the support removal operation.

[0021] 3. Both sides of the mating sleeve of the assembly and disassembly components are equipped with cross bracing reinforcement components. When the mating sleeve and the limiting wing plate are assembled in place, the cross bracing reinforcement components are used to horizontally press against the top side wall of the support side plate. This method can strengthen the support of the support side plate and the support top plate, improving the stability and reliability of the support side plate and the support top plate during the support process. At the same time, when the mating sleeve and the limiting wing plate are separated, the support rod can be disassembled by moving it down from the bottom of the positioning bracket. This further facilitates the smooth disassembly of the support side plate and the support top plate on both sides inside the tunnel to complete the support removal operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an overall isometric schematic diagram of this utility model;

[0024] Figure 2 This is a utility model Figure 1 Cross-section diagram Figure 1 ;

[0025] Figure 3 This is a utility model Figure 1 Cross-section diagram Figure 2 ;

[0026] Figure 4 This is a utility model Figure 3 Enlarged view of a portion at point A;

[0027] Figure 5 This is a utility model Figure 1 Front view diagram;

[0028] Figure 6 This is a utility model Figure 1 A left-view diagram;

[0029] Figure 7 This is a utility model Figure 1 A diagram showing the view from below.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1. Support plate; 2. Cross brace reinforcement assembly; 201. Positioning bracket; 202. Support rod; 203. Connecting sleeve; 204. Elastic end; 3. Support side plate; 301. Connector; 302. Connecting hole; 4. Assembly / disassembly assembly; 401. Limiting wing plate; 402. Mating sleeve; 403. Spring; 404. Handle; 405. Limiting rod; 406. Mounting hole; 407. Limiting hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] See Figures 1-7As shown, this utility model provides a railway tunnel construction support device, including a support side plate 3 and a support top plate 1. There are two support side plates 3 and two support top plates 1, which are located on both sides. The top of each support side plate 3 is fixedly connected to the bottom of the corresponding support top plate 1 to form a whole, so as to support the inner side wall and the inner top wall of the railway tunnel respectively by means of the support side plates 3 and the support top plate 1. The end faces of the two support top plates 1 at the two sides are in close contact with each other, and the joint position of the two support top plates 1 is equipped with a disassembly and assembly assembly 4, which is used to detachably assemble the two support top plates 1 together. Specifically, the disassembly and assembly assembly 4 includes a limiting wing plate 401 and a mating sleeve 402. The lower part of the joint position of the two support top plates 1 is vertically extended and fixed with the limiting wing plate 401, and the two limiting wing plates 401 are close to each other. At the same time, the outer middle part of the limiting wing plate 401 is provided with a limiting hole 407 in the transverse direction. The mating sleeve 402 is vertically positioned... The sleeve 402 is fitted onto the outer side of two closely spaced limiting wing plates 401 in a sliding fit manner. A cross brace reinforcement assembly 2 is assembled on the lower part of both sides of the sleeve 402. Mounting holes 406 are laterally formed on the upper part of both sides of the sleeve 402. These mounting holes 406 are through holes and are laterally coaxially aligned with the corresponding limiting holes 407. Limiting rods 405 are coaxially inserted into the mounting holes 406 in a sliding fit manner. The inner ends of the limiting rods 405 on both sides that are close to each other are laterally slidingly fitted with the corresponding limiting holes 407, while the outer ends of the limiting rods 405 on both sides that are far apart are... A handle 404 is coaxially fixed, and a spring 403 is coaxially fitted to the portion of the limiting rod 405 located between the corresponding handle 404 and the outer side of the mating sleeve 402. Both ends of the spring 403 are fixedly connected to the corresponding handle 404 and the outer side of the mating sleeve 402, respectively. The purpose of this arrangement is that, firstly, by pressing the two limiting flanges 401 of the assembly 4 together, the support side plates 3 and the support top plate 1 on both sides can be pressed against the inner sides of the tunnel to complete the support operation. This tunnel support method is simple and easy to implement. Simultaneously, by disassembling and assembling the assembly... The vertical sliding engagement of the fitting sleeve 402 with the two closely spaced limiting wing plates 401 and the horizontal sliding engagement of the limiting rod 405 with the limiting hole 407 of component 4 enable the quick and easy disassembly and assembly of the two limiting wing plates 401. This allows the support top plates 1 on both sides to be quickly assembled together to prevent separation. The assembly method of the two support top plates 1 is simple and easy to implement. Moreover, the fitting sleeve 402 can be vertically slid away from the limiting wing plates 401 simply by pulling the limiting rod 405 out of the limiting hole 407. The disassembly and assembly method of the two support top plates 1 is also simple and easy to implement.

[0034] See Figures 1-4As shown, both sides of the lower part of the assembly 4 are equipped with cross bracing reinforcement components 2, which are used to reinforce the support side plates 3 and support top plates 1 on the corresponding sides. Each cross bracing reinforcement component 2 includes a strut 202 and an elastic end 204. Several struts 202 are horizontally fixed to the lower part of both outer sides of the mating sleeve 402 through connecting sleeves 203. The outer ends of the struts 202 on both sides are coaxially fixed with elastic ends 204. When the mating sleeve 402 and the limiting wing plate 401 are assembled in place, the cross bracing reinforcement components 2 are used to reinforce the support side plates 3 and support top plates 1 on the corresponding sides. At the same time, the elastic end 204 is pressed against the inner top wall of the corresponding support side plate 3. The purpose of this setting is that, firstly, when the mating sleeve 402 and the limiting wing plate 401 are assembled in place, the strut 202 of the cross brace reinforcement component 2 is placed horizontally against the top side wall of the support side plate 3, so that the support side plate 3 and the support top plate 1 can be reinforced and supported by the strut 202. At the same time, when the mating sleeve 402 and the limiting wing plate 401 are separated, the strut 202 can be disengaged from the bottom of the positioning seat 201 by moving down.

[0035] See Figures 1-7 As shown, the following optimizations have been made to this application. Specifically, the support side plates 3 are all rectangular vertical plates that adhere to the inner wall surface of the railway tunnel, and the support top plate 1 is all arc-shaped plates that adhere to the inner top wall surface of the railway tunnel. This arrangement ensures that both the support side plates and the support top plate 1 have structural designs that meet the needs of support use. Optionally, the lower part of each support side plate 3 has multiple horizontally opened connecting holes 302, and each connecting hole 302 is coaxially fitted with a connector 301 for temporary fixation by being driven into the tunnel side wall. This allows the support side plates and support top plate 1 to be temporarily fixed by driving the connector 301 into the tunnel side wall through the connecting holes 302 after the support side plates are attached to the tunnel side wall. Further optionally, the connectors 301 are all bolts, so that the connectors 301 can be easily driven into the tunnel side wall with the aid of tools.

[0036] See Figures 1-7As shown, the horizontal cross-sectional shape of both the mating sleeve 402 and the limiting wing plate 401 is rectangular, which facilitates good guiding design when the mating sleeve 402 and the closely fitted limiting wing plate 401 slide vertically. Optionally, the inner top wall of the support side plate 3 is fixed with an inverted U-shaped positioning bracket 201. The number of positioning brackets 201 corresponds to the number of support rods 202, and the support rods 202 and their elastic ends 204 are vertically slidably engaged with the corresponding positioning brackets 201 from bottom to top. This arrangement facilitates the use of the positioning brackets 201 to hold the support rods 202, thus protecting the elastic ends 204 at the ends of the support rods 202. It also provides a clear indication when the support rods 202 are in place. Furthermore, the elastic end 204 has the same diameter as the support rod 202, and the support rod 202 and the corresponding connecting sleeve 203 are coaxially interference-fitted. The elastic end 204 is coaxially fixed to the end of the corresponding support rod 202 by adhesive bonding. This arrangement firstly facilitates the stable fixed connection of the elastic end 204 to the end of the support rod 202, and the thickness of the elastic end 204 can be adjusted according to actual needs. It also facilitates the connection of the support rod 202 with the mating sleeve 402 through the connecting sleeve 203.

[0037] Using the above structure, specifically for supporting the interior of railway tunnels, the two limiting wing plates 401 of the disassembly and assembly assembly 4 can be pressed together to allow the support side plates 3 and the support top plate 1 to be placed against the interior sides of the tunnel to complete the support operation. This tunnel support method is simple and easy to implement. Furthermore, the vertical sliding engagement between the fitting sleeve 402 of the disassembly and assembly assembly 4 and the two pressed limiting wing plates 401, and the lateral sliding engagement between the limiting rod 405 and the limiting hole 407, allows for… The system enables the quick and detachable assembly of the two limiting flanges 401, allowing the support top plates 1 on both sides to be quickly assembled together to prevent separation. The assembly method for the two support top plates 1 is simple and easy to implement, facilitating the rapid assembly of the support side plates 3 and the support top plate 1 on both sides of the tunnel interior, thus improving support construction efficiency. Furthermore, since the mating sleeve 402 can be vertically slid away from the limiting flanges 401 simply by pulling the limiting rod 405 out of the limiting hole 407, the system effectively separates the two support top plates 1. The disassembly and assembly method is simple and easy to implement, facilitating the subsequent separation of the two limiting wing plates 401. This allows for the smooth removal of the support side plates 3 and support top plate 1 from both sides of the tunnel interior to complete the support dismantling operation. Furthermore, since both sides of the mating sleeve 402 of the disassembly and assembly assembly 4 are equipped with transverse bracing reinforcement components 2, when the mating sleeve 402 and the limiting wing plate 401 are assembled, the cross bracing reinforcement component 2's struts 202 horizontally press against the top sidewall of the support side plate 3, thus enabling... The support rod 202 is used to reinforce the support side plate 3 and support top plate 1, which improves the stability and reliability of the support side plate 3 and support top plate 1 during the support use. At the same time, when the sleeve 402 is separated from the limiting wing plate 401, the support rod 202 can be disassembled by moving down from the bottom of the positioning bracket 201. This further facilitates the smooth disassembly of the support side plate 3 and support top plate 1 on both sides of the tunnel to complete the support removal operation.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A railway tunnel construction support device, comprising a support side plate (3) and a support top plate (1), characterized in that: The number of the support side plate (3) and the support top plate (1) are both two and located on both sides respectively. The top of the support side plate (3) is fixedly connected to the bottom of the corresponding support top plate (1) to form a whole, so as to support the inner side wall and the inner top wall of the railway tunnel respectively by means of the support side plate (3) and the support top plate (1). The end faces of the support top plates (1) on both sides are in close contact with each other, and the joint position of the two support top plates (1) is equipped with a disassembly assembly (4) to disassemble and assemble the two support top plates (1) together. The lower two sides of the assembly assembly (4) are each provided with a cross brace reinforcement assembly (2) to reinforce and support the corresponding side support plate (3) and the top support plate (1) by means of the cross brace reinforcement assembly (2).

2. The railway tunnel construction support device according to claim 1, characterized in that: The support side plates (3) are all rectangular vertical plates that fit against the inner wall surface of the railway tunnel, and the support top plates (1) are all arc-shaped plates that fit against the inner top wall surface of the railway tunnel.

3. The railway tunnel construction support device according to claim 1, characterized in that: The lower part of each support side plate (3) is provided with multiple connecting holes (302) in the horizontal direction, and each connecting hole (302) is coaxially inserted with a connector (301) for temporary fixation by driving into the tunnel side wall.

4. The railway tunnel construction support device according to claim 3, characterized in that: All the connecting parts (301) are bolts.

5. A railway tunnel construction support device according to any one of claims 1-4, characterized in that: The assembly / disassembly unit (4) includes a limiting wing plate (401) and a mating sleeve (402). The limiting wing plate (401) extends vertically and is fixed to the lower part of the joint position of both support top plates (1), and the two limiting wing plates (401) are close to each other. Simultaneously, limiting holes (407) are opened laterally in the middle of the outer side of each limiting wing plate (401). The mating sleeve (402) is fitted onto the outer side of the two close-to-each limiting wing plates (401) in a vertical sliding fit. The lower sides of the sleeve (402) are provided with the cross brace reinforcement assembly (2). The upper sides of the sleeve (402) are provided with mounting holes (406) in the transverse direction. The mounting holes (406) are all through holes and are laterally coaxial with the corresponding limiting holes (407). The mounting holes (406) are all coaxially inserted with limiting rods (405) in a sliding fit. The inner ends of the limiting rods (405) on both sides are laterally slidingly fitted with the corresponding limiting holes (407).

6. The railway tunnel construction support device according to claim 5, characterized in that: The outer ends of the limiting rods (405) on both sides, which are far apart from each other, are coaxially fixed with handles (404). The portion of the limiting rod (405) located between the outer side of the corresponding handle (404) and the outer side of the mating sleeve (402) is coaxially fitted with a spring (403), and the two ends of the spring (403) are fixedly connected to the outer side of the corresponding handle (404) and the outer side of the mating sleeve (402), respectively.

7. The railway tunnel construction support device according to claim 6, characterized in that: The horizontal cross-sectional shape of both the fitting sleeve (402) and the limiting wing plate (401) is rectangular.

8. A railway tunnel construction support device according to claim 6 or 7, characterized in that: Each of the cross bracing reinforcement components (2) includes a support rod (202) and an elastic end (204). The lower outer sides of the fitting sleeve (402) are each fixed with several support rods (202) by connecting sleeves (203). The outer ends of the support rods (202) on both sides are coaxially fixed with the elastic end (204). When the fitting sleeve (402) and the limiting wing plate (401) are combined into place, the elastic end (204) is pressed against the inner top wall of the corresponding support side plate (3).

9. A railway tunnel construction support device according to claim 8, characterized in that: The inner top wall of each support side plate (3) is fixedly connected with a positioning bracket (201) in an inverted U-shape. The number of positioning brackets (201) corresponds to the number of support rods (202), and the support rods (202) and the elastic ends (204) are all inserted into the corresponding positioning brackets (201) from bottom to top in a vertical sliding fit.

10. A railway tunnel construction support device according to claim 9, characterized in that: The elastic end (204) has the same diameter as the support rod (202), and the support rod (202) is coaxially interference-fitted with the corresponding connecting sleeve (203). The elastic end (204) is coaxially fixed to the end of the corresponding support rod (202) by adhesive bonding.

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