Device for removing shield segments in rectangular structure of existing station

Abstract

The utility model discloses a device for dismantling a shield segment in a rectangular structure of an existing station, which comprises a dismantling trolley and a top segment jacking assembly, the fixed end of the top segment jacking assembly is arranged on the dismantling trolley, and the movable end of the top segment jacking assembly is connected with a top segment; and the dismantling trolley is movably arranged in the negative ring duct piece structure to be dismantled. Through the arrangement of the top segment jacking assembly, the effect of separating the top segment from the lower segment is effectively achieved, and the effect of outwards transporting the segments is achieved by disassembling the trolley; and the lower segment is dismounted through the preset lifting points on the rectangular structure and the lifting equipment, so that the problem that the dismounting difficulty of the negative ring segment in a narrow space is large is effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of shield tunnel segment removal devices, specifically to a device for removing shield tunnel segments within the rectangular structure of an existing station. Background Technology

[0002] With the widespread adoption of tunnel boring machine (TBM) construction, the technology has become increasingly mature. In the construction of the negative ring segments, standard ring segments are primarily used as the negative ring segments, which are dismantled after the TBM has advanced a certain distance. Traditionally, negative ring dismantling in TBM projects involves using gantry cranes, truck cranes, and other lifting machinery. First, slings are used to connect the segments to the hooks for stability, then the bolts are removed, and the segments are vertically lifted to the ground. However, within the existing rectangular structure of a station, the use of lifting machinery is not feasible for negative ring segment dismantling. Furthermore, the existing structural space is limited, and the gap between the outer wall of the segments and the inner wall of the structure is too small. Using traditional lifting machinery would present problems such as limited space, operational difficulties, inability to set up lifting equipment, and low safety, increasing labor intensity, slowing down segment dismantling, and posing safety risks to workers. Currently, besides the traditional method of using cranes and hoisting machinery for the removal of shield tunneling negative ring segments, both domestically and internationally, manual demolition using small machinery or large specialized equipment is mostly employed in structures such as stations and underground sections. Other methods include drilling holes in the top of the existing structure to set up lifting points for the demolition. However, traditional manual demolition is inefficient, risky, and time-consuming. Demolition using large specialized equipment causes significant disturbance to surrounding existing structures and is destructive, rendering the segments unusable and increasing costs. The method of using lifting points in the top of the existing structure requires sufficient space between the top of the structure where the lifting points are set and the top of the segment to meet the safety and operational requirements of the demolition work. In this project, the space between the top slab of the underground structure and the outer wall of the segment is too small to meet the construction conditions. Utility Model Content

[0003] The purpose of this utility model is to provide a device for dismantling shield tunnel segments within the rectangular structure of an existing station, which solves the problem of the difficulty in dismantling the top segments of the negative ring tunnel segments in a narrow space. The device effectively separates the top segments from the lower segments by setting up a top segment lifting component, and achieves the effect of transporting the segments out by using a dismantling trolley.

[0004] The demolition effect.

[0005] This utility model is achieved through the following technical solution:

[0006] A device for dismantling tunnel lining segments within a rectangular structure of an existing railway station includes a dismantling trolley and a top segment lifting assembly. The fixed end of the top segment lifting assembly is mounted on the dismantling trolley, and the movable end of the top segment lifting assembly is connected to the top segment. The dismantling trolley is movably positioned within the negative ring segment structure to be dismantled. To solve the aforementioned technical problems and achieve the corresponding technical effects, this invention effectively separates the top segment from the lower segment through the top segment lifting assembly and facilitates the transport of the segment externally through the dismantling trolley. This effectively solves the problem of the difficulty in dismantling negative ring segments within confined spaces.

[0007] Further technical solutions:

[0008] The top segment lifting assembly includes an arc-shaped connecting arch and a lifting cylinder. The arc-shaped surface of the arc-shaped connecting arch abuts against the top segment, and the arc-shaped connecting arch is fixed to the top segment by connecting bolts.

[0009] The fixed end of the lifting cylinder is hinged to the demolition trolley, and the driving end of the lifting cylinder is hinged to the arc-shaped connecting arch.

[0010] Furthermore, the top segment lifting assembly also includes a support slide and a telescopic cylinder. The fixed end of the telescopic cylinder is hinged to the demolition trolley, the driving end of the telescopic cylinder is fixedly connected to one end of the support slide, the other end of the support slide is hinged to one end of the arc-shaped connecting arch, and the other end of the arc-shaped connecting arch is hinged to the driving end of the lifting cylinder.

[0011] Furthermore: the top segment lifting assembly is provided in two sets, one on the left and one on the right. The top segment lifting assembly on the left is connected to the left half of the top segment, and the top segment lifting assembly on the right is connected to the right half of the top segment. The two sets of top segment lifting assemblies are arranged one in front of the other along the setting direction of the negative ring segment.

[0012] Furthermore: the top segment includes a right adjacent block, a capping block, and a left adjacent block, one end of the capping block is connected to the right adjacent block, and the other end of the capping block is connected to the left adjacent block;

[0013] The top of the arc-shaped connecting arch frame on the left is connected to the right adjacent block and the capping block by arc bolts;

[0014] The top of the arc-shaped connecting arch frame on the right is connected to the left adjacent block and the capping block by arc bolts.

[0015] Furthermore, it also includes a first trolley track, which is set along the extension direction of the negative ring segment, and the dismantling trolley is movably set on the first trolley track.

[0016] Furthermore, the top of the rectangular structure is provided with several preset lifting points, and lifting equipment is configured on the preset lifting points. The lifting equipment is used to lift the right standard block, the right bottom standard block, the left bottom standard block and the left standard block.

[0017] Furthermore, it also includes a transfer trolley, which is movably positioned within the negative ring segment structure to be dismantled.

[0018] Furthermore, it also includes a second track, which is set along the extension direction of the negative ring segment, and the transfer trolley is movably set on the second track.

[0019] Furthermore: the demolition trolley includes a climbing ladder, which is vertically arranged on the side of the demolition trolley, and the top of the climbing ladder extends to the working platform.

[0020] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0021] 1. This utility model discloses a device for dismantling shield tunnel segments within a rectangular structure of an existing station. By setting up a top segment lifting assembly, it effectively achieves the separation of the top segment from the lower segment, and uses a dismantling trolley to transport the segment out. Then, the lower segment is dismantled by pre-set lifting points and lifting equipment on the rectangular structure, thereby effectively solving the problem of the difficulty in dismantling negative ring segments in a narrow space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a side view of the present invention.

[0025] Figure 3 This is a schematic diagram showing the lifting state of the top tunnel segments;

[0026] Figure 4 This is a schematic diagram showing the state of the lower tunnel segment removal.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] 1-Removal trolley, 2-Top segment lifting assembly, 3-Top segment, 4-First trolley track, 5-Rectangular structure, 6-Transfer trolley, 7-Second trolley track, 11-Climbing ladder, 12-Working platform, 21-Arc-shaped connecting arch, 22-Lifting cylinder, 23-Support slide, 24-Telescopic cylinder, 31-Connecting bolt, 32-Arc-shaped bolt, 51-Preset lifting point, 52-Lifting equipment, F-Capping block, L1-Right adjacent block, L2-Left adjacent block, B1-Right standard block, B2-Right bottom standard block, B3-Left bottom standard block, B4-Left standard block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0030] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0031] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0033] Example:

[0034] like Figures 1-4 As shown, this utility model discloses a device for dismantling shield tunnel segments within a rectangular structure of an existing station. The device includes a dismantling trolley 1 and a top segment lifting assembly 2. The fixed end of the top segment lifting assembly 2 is mounted on the dismantling trolley 1, and the movable end of the top segment lifting assembly 2 is connected to the top segment 3. The dismantling trolley 1 is movably positioned within the negative ring segment structure to be dismantled. In this embodiment, the top segment lifting assembly 2 effectively separates the top segment 3 from the lower segments, and the dismantling trolley 1 facilitates the transport of the segments. This effectively solves the problem of the difficulty in dismantling negative ring segments within confined spaces.

[0035] Preferably, this embodiment provides the following specific structure of the top segment lifting assembly 2. It includes an arc-shaped connecting arch 21 and a lifting cylinder 22. The arc-shaped surface of the arc-shaped connecting arch 21 abuts against the top segment 3, and the arc-shaped connecting arch 21 is fixed to the top segment 3 by connecting bolts 31. The fixed end of the lifting cylinder 22 is hinged to the dismantling trolley 1, and the driving end of the lifting cylinder 22 is hinged to the arc-shaped connecting arch 21. In this embodiment, the arc-shaped connecting arch 21 is used to achieve the connection between the lifting cylinder 22 and the top segment 3, while the lifting effect of the lifting cylinder 22 is used to achieve the separation effect between the top segment 3 and the lower segment, thereby effectively simplifying the dismantling work of the top segment 3. More specifically, in order to improve the load-bearing capacity and structural stability of the top segment lifting assembly 2, in this embodiment, the top segment lifting assembly 2 further includes a support slide 23 and a telescopic cylinder 24. The fixed end of the telescopic cylinder 24 is hinged to the demolition trolley 1, the driving end of the telescopic cylinder 24 is fixedly connected to one end of the support slide 23, the other end of the support slide 23 is hinged to one end of the arc-shaped connecting arch 21, and the other end of the arc-shaped connecting arch 21 is hinged to the driving end of the lifting cylinder 22.

[0036] The top segment lifting assembly 2 is provided in two sets, one on the left and one on the right. The left top segment lifting assembly 2 is connected to the left half of the top segment 3, and the right top segment lifting assembly 2 is connected to the right half of the top segment 3. The two sets of top segment lifting assemblies 2 are arranged one in front of the other along the setting direction of the negative ring segment. In this embodiment, the arrangement of the two sets of top segment lifting assemblies 2 makes the support system structure of the entire device more stable and reliable, and safer.

[0037] The specific connection structure between the arc-shaped connecting arch 21 and the top tube segment 3 is as follows: the top tube segment 3 includes a right adjacent block L1, a capping block F, and a left adjacent block L2. One end of the capping block F is connected to the right adjacent block L1, and the other end of the capping block F is connected to the left adjacent block L2. The top end of the arc-shaped connecting arch 21 on the left side is connected to the right adjacent block L1 and the capping block F by an arc bolt 32. The top end of the arc-shaped connecting arch 21 on the right side is connected to the left adjacent block L2 and the capping block F by an arc bolt 32.

[0038] It also includes a first trolley track 4, which is arranged along the extension direction of the negative ring segment, and the demolition trolley 1 is movably arranged on the first trolley track 4. In this embodiment, the arrangement of the first trolley track 4 facilitates the movement of the demolition trolley 1 within the negative ring segment structure.

[0039] The top of the rectangular structure 5 is provided with several preset lifting points 51, and lifting devices 52 are configured on the preset lifting points 51. The lifting devices 52 are used to lift the right standard block B1, the right bottom standard block B2, the left bottom standard block B3, and the left standard block B4. In this embodiment, the preset lifting points 51 and lifting devices 52 provided in the rectangular structure 5 can realize the dismantling of the lower segments (right standard block B1, right bottom standard block B2, left bottom standard block B3, and left standard block B4). At the same time, in order to realize the external transportation of the lower segments, a transfer trolley 6 is also provided. The transfer trolley 6 is movably disposed within the negative ring segment structure to be dismantled. In order to facilitate the movement of the transfer trolley 6 within the negative ring segment, a second trolley track 7 is provided. The second trolley track 7 is arranged along the extension direction of the negative ring segment, and the transfer trolley 6 is movably disposed on the second trolley track 7. Furthermore, when it is necessary to remove the right bottom standard block B2 and the left bottom standard block B3, the first vehicle track 4 and the second vehicle track 7 set in this part must be removed first.

[0040] The demolition trolley 1 includes a climbing ladder 11, which is vertically arranged on the side of the demolition trolley 1, and the top of the climbing ladder 11 extends to the working platform 12. In this embodiment, the working platform 12 is mainly provided to facilitate operators to perform high-altitude operations.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for dismantling shield tunnel segments within the rectangular structure of an existing station, characterized in that, It includes a dismantling trolley (1) and a top segment lifting assembly (2). The fixed end of the top segment lifting assembly (2) is set on the dismantling trolley (1), and the movable end of the top segment lifting assembly (2) is connected to the top segment (3). The dismantling trolley (1) is movably set inside the negative ring segment structure to be dismantled.

2. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 1, characterized in that, The top segment lifting assembly (2) includes an arc-shaped connecting arch (21) and a lifting cylinder (22). The arc-shaped surface of the arc-shaped connecting arch (21) abuts against the top segment (3), and the arc-shaped connecting arch (21) is fixed to the top segment (3) by connecting bolts (31). The fixed end of the lifting cylinder (22) is hinged to the demolition trolley (1), and the driving end of the lifting cylinder (22) is hinged to the arc-shaped connecting arch (21).

3. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 2, characterized in that, The top segment lifting assembly (2) also includes a support slide (23) and a telescopic cylinder (24). The fixed end of the telescopic cylinder (24) is hinged to the demolition trolley (1). The driving end of the telescopic cylinder (24) is fixedly connected to one end of the support slide (23). The other end of the support slide (23) is hinged to one end of the arc-shaped connecting arch (21). The other end of the arc-shaped connecting arch (21) is hinged to the driving end of the lifting cylinder (22).

4. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 3, characterized in that, The top tube segment lifting assembly (2) is provided in two sets, one on the left and one on the right. The left top tube segment lifting assembly (2) is connected to the left half of the top tube segment (3), and the right top tube segment lifting assembly (2) is connected to the right half of the top tube segment (3). The two sets of top tube segment lifting assemblies (2) are set one in front of the other along the setting direction of the negative ring tube segment.

5. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 4, characterized in that, The top segment (3) includes a right adjacent block (L1), a capping block (F) and a left adjacent block (L2). One end of the capping block (F) is connected to the right adjacent block (L1), and the other end of the capping block (F) is connected to the left adjacent block (L2). The top end of the arc-shaped connecting arch frame (21) on the left is connected to the right adjacent block (L1) and the capping block (F) by an arc bolt (32). The top end of the arc-shaped connecting arch frame (21) on the right is connected to the left adjacent block (L2) and the capping block (F) by an arc bolt (32).

6. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 1, characterized in that, It also includes a first trolley track (4), which is set along the extension direction of the negative ring segment, and the dismantling trolley (1) is movably set on the first trolley track (4).

7. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 1, characterized in that, The top of the rectangular structure (5) is provided with several preset lifting points (51), and the preset lifting points (51) are equipped with lifting devices (52). The lifting devices (52) are used to lift the right standard block (B1), the right bottom standard block (B2), the left bottom standard block (B3) and the left standard block (B4).

8. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 7, characterized in that, It also includes a transfer trolley (6), which is movably installed within the negative ring segment structure to be dismantled.

9. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 8, characterized in that, It also includes a second car track (7), which is set along the extension direction of the negative ring tube segment, and the transfer car (6) is movably set on the second car track (7).

10. The device for dismantling shield tunnel segments within the rectangular structure of an existing station according to claim 1, characterized in that, The demolition trolley (1) includes a climbing ladder (11), which is vertically arranged on the side of the demolition trolley (1), and the top of the climbing ladder (11) extends to the working platform (12).

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