A tunnel circular arch straight wall structure TBM starting tool

Abstract

The utility model provides a kind of for tunnel round arch straight wall structure TBM originating tool, belong to TBM originating construction technical field, comprising: prop shoe, tool piece, tool piece is fixedly installed in the outside of limiting groove, the outside of tool piece corresponds with the sidewall of round arch straight wall tunnel, the inside of tool piece corresponds with the outside of prop shoe, prop shoe outer surface and the inside of tool piece are closely combined.The utility model, by design outside and the sidewall of round arch straight wall tunnel corresponding tool piece, tool piece is fixedly installed in the outside of prop shoe, prop shoe outer surface and the inside of tool piece are closely combined, to increase the stress contact area of prop shoe, guarantee the reliability of originating tool work;And the outside of prop shoe is provided with limiting groove, the inside of tool piece is provided with the protruding portion corresponding with limiting groove, so it can further avoid prop shoe and tool piece transverse slip, guarantee the safety of construction operation.

Description

Technical Field

[0001] This utility model relates to the field of TBM launching construction technology, specifically a launching tool for a TBM with a circular arch and straight wall structure in a tunnel. Background Technology

[0002] The TBM tunnel is a circular arched straight-wall structure, which is lined with a standardized steel formwork trolley.

[0003] Traditional TBM launching tunnels are designed with a horseshoe-shaped structure, making it impossible to use standard steel formwork trolleys. Construction is difficult due to the use of steel formwork splicing and steel pipe support. To improve the utilization rate of standard steel formwork trolleys, the construction efficiency of TBM launching tunnels, save project costs, and facilitate early and smooth launching, this utility model provides a launching tooling for TBMs with circular arch and straight wall structures in tunnels. Utility Model Content

[0004] To address the problems of low utilization rate of fixed steel formwork trolleys, low construction efficiency of TBM starting tunnels, and high project costs in traditional TBM starting construction, this utility model provides a TBM starting tooling for tunnel arch straight wall structures.

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

[0006] A TBM launching fixture for a circular arch straight wall structure tunnel includes: a support shoe and a fixture component; the support shoe has a limiting groove on its outer side, the fixture component is fixedly installed on the outer side of the limiting groove, and the outer side of the fixture component corresponds to the sidewall of the circular arch straight wall tunnel, the inner side of the fixture component corresponds to the outer side of the support shoe, and the inner side of the fixture component has a protrusion corresponding to the limiting groove.

[0007] As a further description of the above technical solution:

[0008] The tooling includes: an arc-shaped body, with first stiffeners fixedly connected to both ends of the arc-shaped body along its axial direction, and two sets of spaced second stiffeners fixedly connected to the middle of the arc-shaped body, with the second stiffeners extending inward to form protrusions corresponding to the limiting groove.

[0009] A second arc-shaped plate is fixedly connected between the first stiffener and the second stiffener, and a first arc-shaped plate is fixedly connected between the two sets of the second stiffeners;

[0010] A perforated plate is fixedly connected to the side of the first stiffener, and a threaded perforated plate is fixedly connected to the side of the support shoe at a position corresponding to the perforated plate.

[0011] As a further description of the above technical solution:

[0012] The top of the first stiffening plate is provided with a lifting lug.

[0013] As a further description of the above technical solution:

[0014] A hanging plate is fixedly connected to the top of the second arc-shaped plate.

[0015] As a further description of the above technical solution:

[0016] A second set of vertical plates is fixedly connected between the second arc-shaped plate and the arc-shaped body, and a first set of vertical plates is fixedly connected between the first arc-shaped plate and the arc-shaped body.

[0017] As a further description of the above technical solution:

[0018] The support boots and tooling are used in pairs.

[0019] The beneficial effects of this utility model are:

[0020] This invention designs a tooling component whose outer side corresponds to the sidewall of the arched straight-wall tunnel. The tooling component is fixedly installed on the outer side of the support shoe, and the outer surface of the support shoe is tightly fitted with the inner side of the tooling component to increase the force-bearing contact area of ​​the support shoe and ensure the reliability of the initial tooling operation. Furthermore, a limiting groove is provided on the outer side of the support shoe, and a protrusion corresponding to the limiting groove is provided on the inner side of the tooling component. This further prevents the support shoe and the tooling component from sliding laterally, ensuring the safety of the construction operation. Attached Figure Description

[0021] The following figures illustrate a TBM launching tool for a tunnel arch straight wall structure more clearly.

[0022] Figure 1 This is an installation diagram of the present invention;

[0023] Figure 2 This is a front view of the tooling component of this utility model;

[0024] Figure 3 This is a side view of the tooling component of this utility model;

[0025] Figure 4 for Figure 2 Cross-sectional view of section line AA in the middle;

[0026] Figure 5 for Figure 2 Cross-sectional view of the section line at point BB;

[0027] Figure 6 for Figure 2 A sectional view of the section line at point CC.

[0028] The labels in the attached diagram;

[0029] 1. Support shoe; 2. Restriction groove; 3. Tooling; 301. First stiffening plate; 302. Arc-shaped body; 303. Second stiffening plate; 304. First arc-shaped plate; 305. First upright plate assembly; 306. Second arc-shaped plate; 307. Second upright plate assembly; 308. Hole plate; 309. Lifting lug; 3010. Hanging plate. Detailed Implementation

[0030] Please refer to the attached document. Figures 1-6 This paper illustrates a TBM launching fixture for a tunnel arch straight wall structure. Designed as an arch straight wall structure, the TBM launching tunnel is aligned with the TBM's step tunnel, improving the utilization rate of the formwork trolley, increasing construction efficiency of the TBM launching tunnel, saving project costs, and facilitating earlier and smoother launching. To achieve this design, a fixture 3 is installed on the outside of the support shoe 1. The fixture 3 is fixedly installed on the outside of the limiting groove 2. The outside of the fixture 3 corresponds to the sidewall of the arch straight wall tunnel, and the inside of the fixture 3 corresponds to the outside of the support shoe 1. The outer surface of the support shoe 1 and the inner surface of the fixture 3 are tightly fitted to increase the contact area of ​​the support shoe 1, ensuring the reliability of the launching fixture. Furthermore, the outer side of the support shoe 1 is provided with the limiting groove 2, and the inner side of the fixture 3 is provided with a protrusion corresponding to the limiting groove 2. This further prevents lateral slippage between the support shoe and the fixture, ensuring the safety of the construction operation.

[0031] In one embodiment, the tooling 3 includes: an arc-shaped body 302, a first stiffener 301, a second stiffener 303, a second arc-shaped plate 306, and a first arc-shaped plate 304.

[0032] The arc-shaped body 302 is fixedly connected to both ends of the arc-shaped body 302 along its axial direction. Two sets of spaced second ribs 303 are fixedly connected to the middle of the arc-shaped body 302. The second ribs 303 extend inward to form a protrusion corresponding to the limiting groove 2. A second arc-shaped plate 306 is fixedly connected between the first ribs 301 and the second ribs 303. A first arc-shaped plate 304 is fixedly connected between the two sets of second ribs 303.

[0033] The structure consists of a double layer composed of an arc-shaped body 302, a first stiffener 301, a second stiffener 303, a second arc-shaped plate 306, and a first arc-shaped plate 30. The thickness of the structure is determined according to the shape of the first stiffener 301 and the second stiffener 303, so that the whole structure has sufficient structural strength and the overall weight is relatively light.

[0034] A round hole plate 308 is fixedly connected to the side of the first stiffener 301. A threaded hole plate is fixedly connected to the side of the support shoe 1 at a position corresponding to the round hole plate 308. Screws are threaded through the round holes on the round hole plate 308 and threaded through the threaded holes on the threaded hole plate to reliably fix the tooling 3 and the support shoe 1 together.

[0035] In one embodiment, the top of the first stiffener 301 is provided with a lifting lug 309 to facilitate the hoisting of the tooling 3 using hoisting equipment.

[0036] In one embodiment, a hanging plate 3010 is fixedly connected to the top of the second arc-shaped plate 306. The hanging plate 3010 is snapped into the top of the support shoe 1 and serves as a positioning device.

[0037] In one embodiment, a second vertical plate assembly 307 is fixedly connected between the second arc-shaped plate 306 and the arc-shaped body 302, and a first vertical plate assembly 305 is fixedly connected between the first arc-shaped plate 304 and the arc-shaped body 302. The second vertical plate assembly 307 and the first vertical plate assembly 305 are used to increase the structural strength of the tooling 3, such as... Figure 4 , Figure 5 As shown, the second vertical plate group 307 and the first vertical plate group 305 are both arranged in multiple layers.

[0038] In one embodiment, such as Figure 1 As shown, the support boots 1 and tooling parts 3 are generally used in pairs. The support boots 1 and tooling parts 3 on both sides are pressed outward to fix them to the TBM starting hole.

[0039] Working principle:

[0040] like Figure 1 As shown, the support shoe 1 and tooling 3 are used in pairs. Before use, determine the installation position of the threaded hole plate on the support shoe 1. After determination, weld all the threaded hole plates to the outer surface of the support shoe 1. After welding, hoist the tooling 3. Hoist the tooling 3 by using the lifting lug 309 provided at the top of the first stiffener 301. Place the second arc plate 306 into the limiting groove 2 in the middle of the support shoe, and make the second arc plate 306 and the first arc plate 304 fit tightly against the support shoe surface. At the same time, use the hanging plate 3010 to hang the tooling 3 on the support shoe 1. After the support shoe surface fits tightly against the second arc plate 306 and the first arc plate 304 and the hanging plate 3010 is hung on the support shoe, determine the position of the corresponding round hole plate 308 according to the position of the threaded hole plate on the support shoe. After the position of the round hole plate 308 is determined, use hexagonal head bolts and flat washers to make threaded connections. After connection, weld all the round hole plates 308 to the first stiffener 301. After the tooling component 3 on one side of the support shoe is installed, the tooling component 3 on the other side is installed in the same way. After both tooling components 3 are installed, the hydraulic cylinder of the support shoe on the TBM is extended and the tooling component 3 is brought into direct contact with the concrete circular arch wall to obtain the reaction force for the TBM to move forward, thereby realizing the starting function of the TBM starting tooling for the circular arch straight wall structure.

[0041] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0042] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A starting fixture for a TBM with a circular arch and straight wall structure in a tunnel, comprising a support shoe (1), characterized in that, Also includes: The tooling (3) has a limiting groove (2) on the outside of the support shoe (1). The tooling (3) is fixedly installed on the outside of the limiting groove (2), and the outside of the tooling (3) corresponds to the side wall of the circular arch straight wall tunnel. The inside of the tooling (3) corresponds to the outside of the support shoe (1), and the inside of the tooling (3) has a protrusion corresponding to the limiting groove (2).

2. The TBM launching fixture for a tunnel arch straight wall structure according to claim 1, characterized in that, The tooling component (3) includes: An arc-shaped body (302) has a first rib plate (301) fixedly connected to both ends along its axial direction. Two sets of second rib plates (303) are fixedly connected to the middle part of the arc-shaped body (302) and the second rib plates (303) extend inward to form a protrusion corresponding to the limiting groove (2). A second arc-shaped plate (306) is fixedly connected between the first stiffening plate (301) and the second stiffening plate (303), and a first arc-shaped plate (304) is fixedly connected between the two sets of second stiffening plates (303); A perforated plate (308) is fixedly connected to the side of the first stiffener (301), and a threaded perforated plate is fixedly connected to the side of the support shoe (1) at a position corresponding to the perforated plate (308).

3. The TBM launching fixture for a tunnel arch straight wall structure according to claim 2, characterized in that: The top of the first stiffening plate (301) is provided with a lifting lug (309).

4. The TBM launching fixture for a tunnel arch straight wall structure according to claim 2, characterized in that: A hanging plate (3010) is fixedly connected to the top of the second arc-shaped plate (306).

5. The TBM launching fixture for a tunnel arch straight wall structure according to claim 1, characterized in that: A second vertical plate assembly (307) is fixedly connected between the second arc-shaped plate (306) and the arc-shaped body (302), and a first vertical plate assembly (305) is fixedly connected between the first arc-shaped plate (304) and the arc-shaped body (302).

6. The TBM launching fixture for a tunnel arch straight wall structure according to claim 5, characterized in that: The support boot (1) and tooling (3) are used in pairs.

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