A pipeline-free relocation tunnel bracket mounting device

Abstract

The utility model belongs to tunnel steel ring reinforcing technical field especially relates to a kind of tunnel bracket mounting equipment of exempting from pipeline relocation, including installation car, installation car includes track wheel support, the bottom of track wheel support is provided with track wheel, the upper end of track wheel support is provided with several top support square tubes, the upper end of several top support square tubes is provided with installation crossbeam, the end of I-beam is projected to the outside of installation crossbeam, pulley assembly is rolled with the inner groove of I-beam two sides by pulley on its two sides;The bracket lifting appliance is connected at the bottom of pulley assembly, and the bracket lifting appliance is used to hoist bracket, to realize that bracket is hoisted from storage position to installation car, or bracket is hoisted from installation car and positioned and installed to tunnel inner wall.By the installation car, the number of operation points of motor car can be reduced, the number of cooperating personnel can be reduced, the safety operation risk level can be reduced, the overall operation efficiency can be improved, and the relocation operation content of existing pipeline can be cancelled.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel steel ring reinforcement technology, and in particular relates to a tunnel bracket installation device that eliminates the need for pipeline relocation. Background Technology

[0002] After years of operation, or when deficiencies exist in the design or construction phases, the original concrete lining structure of a tunnel may no longer meet current safety and operational requirements. Steel ring reinforcement is designed to address these situations, primarily because the original concrete lining structure has become unsafe or inadequate due to defects, aging, or increased demands.

[0003] Tunnel steel ring reinforcement involves attaching steel plates of a certain thickness circumferentially to the tunnel wall and anchoring them to the tunnel lining using chemical anchors. This high-strength steel plate, combined with the existing lining, forms a robust composite structure, restoring and enhancing the tunnel's load-bearing capacity. Currently, the installation of steel ring plates primarily utilizes large-scale machinery installed at railway stations. This involves high-intensity, intensive tunnel construction using large specialized equipment during the brief window of train service interruption. This ensures efficient, precise, and safe construction while maintaining uninterrupted railway operation.

[0004] The installation of large machinery at high-speed train depots is a typical construction organization model in railway tunnel maintenance. It utilizes the 2-4 hour "maintenance window" during daily train downtime to bring heavy equipment such as large work trolleys into the tunnel, concentrating manpower and resources for tasks such as steel ring hoisting and anchoring. This model is like a "blitzkrieg"—high-intensity construction is completed through the efficient operation of large machinery within a very limited time, but strict and timely withdrawal is essential to ensure on-time railway operation. Its core characteristics are: extremely short time windows, high degree of mechanization, high work intensity, and strict requirements for organization and coordination, while also facing challenges such as complex preliminary preparations and difficult pipeline relocation.

[0005] Existing tunnel steel ring reinforcement technology suffers from three major contradictions due to its complete reliance on short-term "tunnel windows" and large machinery: 1. Time conflict – The working window is very short and the efficiency advantage of large machinery is severely compressed, resulting in low overall construction efficiency; 2. Spatial conflict - Large machinery requires a wide working area, which necessitates large-scale relocation of existing pipelines (such as sewage pipes and fire water pipes) within the tunnel, making the project complex and costly. 3. Safety Contradiction – High-intensity, multi-trade, and mechanized operations within the maintenance window pose concentrated risks and require a large number of personnel to cooperate, further restricting efficiency and safety.

[0006] 4. Current attempts to prepare in advance by simply increasing manual labor have yielded some improvements, but they still rely on skylights, large machinery, and pipeline relocation, and the fundamental problem remains unsolved. Utility Model Content

[0007] In view of the technical problems existing in the background technology, this utility model provides a tunnel bracket installation equipment that does not require pipeline relocation, fundamentally breaking through the rigid constraints of "skylight window + large machinery", creating a new type of installation equipment that does not rely on large-scale pipeline relocation, does not occupy core skylight window time, and can carry out decentralized and safe operations.

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: A tunnel support bracket installation device that eliminates pipeline relocation includes an installation vehicle. The installation vehicle comprises a track wheel bracket, an I-beam, and a pulley assembly. The track wheel bracket has track wheels at its bottom end and several top support square tubes at its upper end. An installation beam is detachably mounted on the upper end of each top support square tube. The I-beam is positioned on the bottom side of the installation beam, with its end extending outwards. The pulley assembly, through its two side pulleys, rolls with the inner grooves on both sides of the I-beam, allowing it to slide longitudinally along the I-beam. A support bracket lifting device is connected to the bottom of the pulley assembly. This device is used to lift the support bracket from its storage location onto the installation vehicle, or to lift the support bracket from the installation vehicle and position it for installation onto the tunnel wall.

[0009] Optionally, the two ends of the mounting beam are respectively inserted into the upper end of the top support square tube and connected by the first bolt assembly.

[0010] Optionally, the upper end of the I-beam is provided with several sets of connecting plates, the bottom end of the mounting beam is close to the upper end surface of the I-beam, and both sides of the mounting beam are in contact with the connecting plates and connected by a second bolt assembly.

[0011] Optionally, connecting beams are provided at both ends of the I-beam. The bottom end of the connecting beam is close to the upper end face of the I-beam, and the two sides of the connecting beam are in contact with the connecting plate and connected by a second bolt assembly.

[0012] Optionally, guide grooves are symmetrically arranged on both sides of the track wheel bracket, and an outer support square tube is slidably arranged in the guide groove. The upper end of the outer support square tube is hinged to a multi-stage telescopic diagonal brace, and the upper end of the multi-stage telescopic diagonal brace is hinged to the bottom end of the connecting crossbeam.

[0013] Optionally, the bottom end of the outer support square tube is hinged with a diagonal bracing plate, which is used to fit tightly against the tunnel lining.

[0014] Optionally, existing pipelines are symmetrically arranged at the bottom of the two side walls of the tunnel lining. The bracket is installed on the inner wall of the tunnel lining and located in the pipeline-free area inside the existing pipelines. The reinforcing steel plate is attached to the inner wall of the tunnel lining and its bottom end is supported on the bracket. Near the installation position of the bracket, there is a diagonal bracing base plate that is tightly attached to the outer wall of the tunnel lining to provide temporary support for the installation of the bracket and the reinforcing steel plate.

[0015] Optionally, the main body of the corbel is a box-shaped support structure, with an arc-shaped connecting part extending from one end toward the reinforcing steel plate, and several reinforcing ribs welded to the side toward the center of the tunnel; the connecting plate is set close to the inner wall of the tunnel lining and extends upward to a height exceeding the existing pipeline, so that the reinforcing steel plate is supported on the upper surface of the connecting plate.

[0016] Optionally, the bottom of the pulley assembly is provided with a lifting lug, and the bracket lifting device includes a telescopic lifting rod with an adjustable lifting length. The telescopic lifting rod includes a telescopically adjustable first lifting rod and a second lifting rod. The upper end of the first lifting rod is connected to the lifting lug, and the lower end of the second lifting rod is provided with a lifting crossbar.

[0017] This utility model has the following advantages and beneficial effects: This installation vehicle can reduce the number of work points on the train, reduce the number of personnel involved, lower the level of safety risks, and improve overall work efficiency. At the same time, it can eliminate the need for relocation of existing pipelines (sewage pipes, fire water pipes, etc.).

[0018] By increasing manual labor to pre-install the foundation components, some work within the tunnel maintenance window is transferred to outside the window. Installation vehicles replace heavy machinery for some of the installation work within the window. These vehicles assemble, transport, and install the corbels, and also position and install the corbels and the low-lying reinforcing steel plates on both sides of the tunnel wall. This allows for the installation of the "foundation components" (such as corbels and bottom reinforcing steel plates) in areas with dense pipelines, eliminating pipeline relocation and directly cutting out the most time-consuming pre-installation step in the traditional method. Subsequently, heavy machinery can be used to directly install the remaining reinforcing steel plates at the top of the tunnel wall.

[0019] Reduce absolute dependence on "skylight points": The installation of the brackets can be completed entirely within the daily "work point approval" time (which is usually more flexible and more frequent than the skylight windows). The core skylight windows will only be used for the final steel plate hoisting and connection, at which point the work has been simplified to "hanging the steel plate onto the pre-installed brackets", greatly reducing the time requirement and doubling the efficiency.

[0020] Significantly reduces security risks: Risk diversification: The high-intensity, multi-tasking concentrated risks within the maintenance window are broken down into single, controllable, and dispersed operational risks during daily periods.

[0021] Equipment downgrading: Replacing large, complex work trolleys with small, low-speed assembly vehicles greatly reduces the operational risks and the scope of impact of equipment failures.

[0022] Simplified human-computer interaction: The task is simple (installing brackets), reducing the need for personnel cooperation, making the process clearer, and reducing the probability of human error. Attached Figure Description

[0023] Figure 1 This is one of the structural diagrams of the assembled vehicle in this utility model; Figure 2 This is the second structural diagram of the assembled vehicle in this utility model; Figure 3 for Figure 2 A magnified view of a portion of point a. Figure 4 for Figure 2 A magnified view of a section at point b in the middle; Figure 5 This is a structural diagram of the assembly vehicle, platform, and tunnel lining in this utility model; Figure 6 for Figure 5 A magnified view of a section at point c in the middle; Figure 7 for Figure 6 A magnified view of a portion at point d in the middle; Figure 8 for Figure 6 The left view; Figure 9 This is a structural diagram of the assembly vehicle entering the tunnel lining for construction in this utility model; Figure 10 for Figure 9 A magnified view of a section at point e in the middle; Figure 11 This is a front view of the assembly vehicle entering the tunnel lining to install brackets and reinforcing steel plates in this utility model; Figure 12 This is a front view of the assembly vehicle entering the tunnel lining to install the brackets in this utility model. Figure 13 This is a front view of the brackets and reinforcing steel plates installed on both sides of the tunnel lining in this utility model. Figure 14 This is a structural diagram of the cow leg in this utility model; Figure 15 This is a cross-sectional view of the cow leg in this utility model; Figure 16 This is a structural diagram of the bracket lifting device used in this utility model for hoisting brackets; Figure 17 This is a structural diagram of the steel plate being lifted and reinforced by the bracket lifting device in this utility model.

[0024] Reference numerals: 1-Rail wheel bracket, 11-Guide groove, 2-Rail wheel, 3-Top support square tube, 31-Installation beam, 32-I-beam, 33-Connecting beam, 34-Hinge plate, 35-Connecting plate, 36-Second bolt assembly, 37-First bolt assembly, 4-Diagonal brace base plate, 41-First pin, 42-Outer support square tube, 43-Multi-stage telescopic diagonal brace, 44-Second pin, 5-Tunnel lining, 51-Existing pipeline, 52-Rail, 53-Platform, 6-Corner, 61-Connecting part, 7-Pulley assembly, 71-Telescopic boom, 711-First boom, 712-Second boom, 73-Lifting crossbar, 74-Lifting lug, 75-Clamping block, 8-Reinforcing steel plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Example like Figures 1 to 17 As shown, a tunnel bracket installation device that eliminates pipeline relocation includes an installation vehicle, which comprises a track wheel bracket 1, an I-beam 32, and a pulley assembly 7.

[0028] like Figures 1-4 As shown, a track wheel 2 is provided at the bottom of the track wheel bracket 1, and the track wheel 2 is fitted onto the track 52. Several top support square tubes 3 are provided at the upper end of the track wheel bracket 1. A mounting beam 31 is detachably provided at the upper end of each top support square tube 3. An I-beam 32 is provided on the bottom side of the mounting beam 31, with both ends of the I-beam 32 extending to the outside of the mounting beam 31. The pulley assembly 7 rolls with the inner grooves on both sides of the I-beam 32 via pulleys on both sides, allowing the pulley assembly 7 to slide longitudinally along the I-beam 32. A bracket lifting device is connected to the bottom of the pulley assembly 7. The bracket lifting device is used to lift the bracket 6, enabling the bracket 6 to be lifted from its storage location onto the installation vehicle, or to be lifted from the installation vehicle and positioned for installation onto the tunnel wall.

[0029] like Figures 1-4As shown, furthermore, the two ends of the mounting beam 31 are respectively inserted into the upper end of the top support square tube 3 and connected by the first bolt assembly 37 to realize the detachable connection between the mounting beam 31 and the top support square tube 3.

[0030] like Figures 1-4 As shown, further, the upper end of the I-beam 32 is provided with several sets of connecting plates 35, each set of connecting plates 35 consists of two plates. The bottom end of the mounting beam 31 is close to the upper end face of the I-beam 32, and both sides of the mounting beam 31 are in contact with the connecting plates 35. They are connected by the second bolt assembly 36 to realize the detachable connection between the mounting beam 31 and the I-beam 32.

[0031] like Figures 1-4 As shown, furthermore, connecting beams 33 are provided at both ends of the I-beam 32. The bottom end of the connecting beam 33 is close to the upper end face of the I-beam 32, and the two sides of the connecting beam 33 are close to the connecting plate 35. They are connected by the second bolt assembly 36 to realize the detachable connection between the connecting beam 33 and the I-beam 32.

[0032] like Figures 1 to 8 As shown, in this invention, guide grooves 11 are symmetrically arranged on both sides of the track wheel bracket 1. An outer support square tube 42 is slidably mounted in the guide grooves 11. The upper end of the outer support square tube 42 is hinged to a multi-stage telescopic diagonal brace 43 via a second pin 44. The upper end of the multi-stage telescopic diagonal brace 43 is hinged to a hinge plate 34 at the bottom end of the connecting beam 33. This design allows for lateral telescopic expansion and contraction of the outer support square tube 42, providing support for the subsequent installation of the bracket 6 and reinforcing steel plate 8, and preventing the installation vehicle from being subjected to unbalanced overturning moments. Simultaneously, the connection between the multi-stage telescopic diagonal brace 43 and the outer support square tube 42 forms an adjustable triangular support structure, enhancing the overall strength of the installation vehicle.

[0033] Furthermore, the bottom end of the outer support square tube 42 is hinged to a diagonal bracing plate 4 via a first pin 41. The diagonal bracing plate 4 is used to fit tightly against the tunnel lining 5 to achieve close-fitting support.

[0034] like Figures 1 to 13 As shown, existing pipelines 51 are symmetrically installed at the bottom of both sides of the tunnel lining 5. These existing pipelines 51 are pipelines that were installed after the initial construction. The brackets 6 are installed on the inner wall of the tunnel lining 5, in a pipeline-free area inside the existing pipelines 51, achieving avoidance installation. The reinforcing steel plate 8 is attached to the inner wall of the tunnel lining 5, with its bottom end supported on the brackets 6. A layer of reinforcing steel plate 8 is installed using the brackets 6. Near the installation position of the brackets 6, there is a diagonal bracing base plate 4 that is tightly attached to the outer wall of the tunnel lining 5 to provide temporary support for the installation of the brackets 6 and the reinforcing steel plate 8. No support is needed on the side where no bracket is installed.

[0035] like Figures 11-15As shown, the main body of the corbel 6 is a box-shaped support structure. One end of the corbel 6 extends in an arc towards the reinforcing steel plate 8, with a connecting portion 61. Several reinforcing ribs are welded to the side facing the tunnel center. The connecting plate 35 is installed close to the inner wall of the tunnel lining 5 and extends upwards beyond the existing pipeline 51, allowing the reinforcing steel plate 8 to be supported on the upper surface of the connecting plate 35. This design places the bulky part of the corbel 6 at the bottom of the existing pipeline 51, with the connecting portion 61 passing through the existing pipeline 51 and supporting the reinforcing steel plate 8 upwards, achieving safe and avoidance-oriented installation.

[0036] like Figure 16 and Figure 17 As shown, furthermore, the bottom of the pulley assembly 7 is provided with a lifting lug 74, and the bracket lifting device includes a multi-stage telescopic lifting rod 71 with adjustable lifting length. The telescopic lifting rod 71 includes a telescopically adjustable first lifting rod 711 and a second lifting rod 712. The first lifting rod 711 and the second lifting rod 712 are interlocked and can extend and retract axially, fixed by a pin or by a threaded connection, etc. The upper end of the first lifting rod 711 is connected to the lifting lug 74, and the bottom end of the second lifting rod 712 is provided with a lifting crossbar 73. Figure 16 As shown, when hoisting the bracket 6, clamping blocks 75 are installed on both sides of the hoisting crossbar 73. The bracket 6 is then clamped using the clamping blocks 75 to achieve hoisting. Figure 17 As shown, when hoisting the reinforcing steel plate 8, insert the two sides of the hoisting crossbar 73 into the bushings on the reinforcing steel plate 8 respectively, and connect the reinforcing steel plate 8 using the hoisting crossbar 73 to achieve hoisting.

[0037] Assembly steps for the assembled vehicle: (1) Use the previous person's work point to transport the installation vehicle parts to the track area storage area.

[0038] (2) The ox leg 6 is transported into the track area platform 53 by a flatbed trolley through the station’s barrier-free vertical elevator, public area side door, and track area end door.

[0039] (3) After the work site approves the work, the assembly will proceed in the section.

[0040] (4) such as Figure 5 , Figure 6 and Figure 8 As shown, the 6th leg is hoisted into the belly of the installation vehicle for storage.

[0041] (5) such as Figure 9 As shown, the installation vehicle carrying the bracket 6 is pushed to the working installation position.

[0042] (6) Installation shall be carried out on existing sewage pipes (fire hydrants) that have not been relocated. For example... Figure 12 As shown, first install the corbel 6 on one side of the tunnel lining 5, then, as... Figure 11As shown, after the corbel 6 is installed, a reinforcing steel plate 8 is installed; the installation is carried out along the length of the tunnel. Figure 13 As shown, after one side is installed, the other side is installed until both tunnel linings 5 ​​are fitted with brackets 6 and a layer of reinforcing steel plates 8. Subsequent installations will be carried out using existing large machinery, which will directly install the reinforcing steel plates 8 on the remaining positions on the top of the tunnel lining 5 along the L1 line.

[0043] This installation vehicle can reduce the number of work points on the train, reduce the number of personnel involved, lower the level of safety risks, and improve overall work efficiency. At the same time, it can eliminate the need for relocation work on existing pipelines 51 (sewage pipes, fire water pipes, etc.).

[0044] By increasing manual labor to pre-install the foundation components, some work within the tunnel window is transferred to outside the window. Installation vehicles replace heavy machinery for some installation tasks within the window. The installation vehicles assemble, transport, and install the corbel 6, and position and install the corbel 6 and the low-lying reinforcing steel plates 8 on both sides of the tunnel wall. This allows for the installation of the "foundation components" (such as the corbel 6 and the bottom reinforcing steel plates 8) in areas with dense pipelines, eliminating pipeline relocation and directly cutting out the most time-consuming pre-installation step in the traditional method. Subsequently, heavy machinery can be used to directly install the remaining reinforcing steel plates 8 at the top of the tunnel wall.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tunnel bracket installation device that eliminates the need for pipeline relocation, characterized in that: The installation vehicle includes a track wheel bracket, an I-beam, and a pulley assembly. The bottom end of the track wheel bracket is provided with a track wheel, and the upper end of the track wheel bracket is provided with several top support square tubes. The upper ends of the several top support square tubes are detachably provided with mounting beams. I-beams are provided on the bottom side of the mounting beams, and the ends of the I-beams extend to the outside of the mounting beams. The pulley assembly rolls with the inner grooves on both sides of the I-beam through the pulleys on both sides, so that the pulley assembly can slide along the longitudinal direction of the I-beam. The bottom of the pulley assembly is connected to a bracket lifting device, which is used to lift the bracket to move it from the storage location to the installation vehicle, or to lift the bracket from the installation vehicle and position it for installation on the inner wall of the tunnel.

2. The tunnel bracket installation equipment without pipeline relocation as described in claim 1, characterized in that: The two ends of the mounting beam are respectively inserted into the upper end of the top support square tube and connected by the first bolt assembly.

3. The tunnel bracket installation equipment without pipeline relocation as described in claim 1, characterized in that: The upper end of the I-beam is provided with several sets of connecting plates. The bottom end of the mounting beam is close to the upper end surface of the I-beam, and both sides of the mounting beam are in contact with the connecting plates and are connected by a second bolt assembly.

4. The tunnel bracket installation equipment without pipeline relocation as described in claim 3, characterized in that: The two ends of the I-beam are respectively provided with connecting beams. The bottom end of the connecting beam is close to the upper end surface of the I-beam, and the two sides of the connecting beam are in contact with the connecting plate and are connected by the second bolt assembly.

5. The tunnel bracket installation equipment without pipeline relocation as described in claim 4, characterized in that: The track wheel bracket has symmetrical guide grooves on both sides, and an outer support square tube is slidably installed in the guide groove. The upper end of the outer support square tube is hinged to a multi-stage telescopic diagonal brace, and the upper end of the multi-stage telescopic diagonal brace is hinged to the bottom end of the connecting crossbeam.

6. The tunnel bracket installation equipment without pipeline relocation as described in claim 5, characterized in that: The bottom end of the outer support square tube is hinged with a diagonal bracing plate, which is used to fit tightly against the tunnel lining.

7. The tunnel bracket installation equipment without pipeline relocation as described in claim 6, characterized in that: Existing pipelines are symmetrically arranged at the bottom of the two side walls of the tunnel lining. The brackets are installed on the inner wall of the tunnel lining and are located in the pipeline-free area inside the existing pipelines. The reinforcing steel plates are attached to the inner wall of the tunnel lining and their bottom ends are supported on the brackets. Near the installation position of the brackets, there are inclined bracing base plates that are tightly attached to the outer wall of the tunnel lining to provide temporary support for the installation of the brackets and reinforcing steel plates.

8. The tunnel bracket installation equipment without pipeline relocation as described in claim 7, characterized in that: The main body of the corbel is a box-shaped support structure. One end of the corbel extends in an arc shape towards the reinforcing steel plate and has a connecting part. Several reinforcing ribs are welded to the side of the corbel facing the center of the tunnel. The connecting plate is set close to the inner wall of the tunnel lining and extends upward to a height exceeding that of the existing pipeline, so that the reinforcing steel plate is supported on the upper surface of the connecting plate.

9. The tunnel bracket installation equipment without pipeline relocation as described in claim 1, characterized in that: The bottom of the pulley assembly is provided with a lifting lug, and the bracket lifting device includes a telescopic lifting rod with an adjustable lifting length. The telescopic lifting rod includes a first lifting rod and a second lifting rod that can be telescopically adjusted. The upper end of the first lifting rod is connected to the lifting lug, and the lower end of the second lifting rod is provided with a lifting crossbar.

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