Staggered slab correcting device suitable for shield tunnel assembly

Abstract

The invention discloses a slab staggering correcting device suitable for shield tunnel assembly, and belongs to the technical field of tunnel construction equipment. The slab staggering correcting device comprises a fixing mechanism which is fixed on an adjacent block adjacent to a top sealing block; the force applying mechanism is rotatably arranged on the upper side of the fixing mechanism, one end of the force applying mechanism is located on the upper side of the top sealing block, and the other end of the force applying mechanism is located on the upper side of the adjacent block. The device is compact in overall structure, small in occupied space and capable of adapting to a narrow operation space in a shield tunnel construction environment, and the problems that an existing correcting device is mostly applied to served segments and operation is complex are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and in particular relates to a misalignment correction device suitable for assembling a shield tunnel. Background Art

[0002] During the construction of shield tunnels, the assembly of the capping blocks may be misaligned due to human operational errors, which may lead to problems such as water seepage and reduced stiffness at the joints of the segments. This not only affects the overall performance of the tunnel structure, but may also pose a safety hazard to subsequent use.

[0003] At present, the existing segment misalignment correction devices are mainly used for segments that have been in service. However, since the segments that have been in service are subjected to external loads such as soil pressure and groundwater pressure, it is very difficult to correct their misalignment and deviation. For example, Chinese utility model patent CN212250078U discloses a shield segment misalignment correction device, which can theoretically correct the misalignment of the segments in service by fixing them with grouting holes on the segments. However, since the grouting holes need to be occupied for fixing, this solution is limited by the specific environment and conditions of the segments in actual use, and its applicability is insufficient.

[0004] In addition, Chinese utility model patent CN215633043U discloses a shield tunnel segment misalignment repair device, which can repair segment misalignment to a certain extent through special structural design. However, the device requires a large working space, increases the complexity of construction, and is not conducive to the construction progress of the shield tunnel project.

[0005] In general, the existing segment misalignment correction and repair devices are mainly aimed at segments already in service. Their application environment is limited, and due to the influence of external loads, the operations of misalignment correction and deviation rectification are complicated and difficult to meet the requirements of construction efficiency. Summary of the invention

[0006] In order to solve the above problems, the present invention adopts the following technical solutions: A misalignment correction device suitable for shield tunnel assembly, comprising: A fixing mechanism, wherein the fixing mechanism is fixed to an adjacent block adjacent to the capping block; The force applying mechanism is rotatably arranged on the upper side of the fixing mechanism, and one end of the force applying mechanism is located on the upper side of the capping block, and the other end is located on the upper side of the adjacent block.

[0007] Furthermore, the fixing mechanism comprises: an ear plate, a first end of which is detachably mounted on the abutment block via a connecting bolt; A fixed platform is located on the upper side of the adjacent block, and a first end of the fixed platform is hinged to the second end of the ear plate.

[0008] Furthermore, the force applying mechanism comprises: A rotating connector, the rotating connector being rotatably disposed on an upper side of the fixed platform; A lifting end telescopic rod, the lifting end telescopic rod is located on the upper side of the adjacent block; the first end of the lifting end telescopic rod is a free end, and the second end is fixedly connected to the rotating connector; A force-applying end telescopic rod, wherein the force-applying end telescopic rod is located on the upper side of the capping block; the first end of the force-applying end telescopic rod is fixedly connected to the rotating connector, and the second end is hinged with a force-applying platform.

[0009] Furthermore, the contact surface of the force-applying platform is arc-shaped and matches the contact surface of the capping block.

[0010] Furthermore, the lifting end telescopic rod and the force-applying end telescopic rod are both made of alloy steel, and the surface is carbonized.

[0011] Furthermore, the end of the first end of the lifting end telescopic rod is connected to a gripping handle.

[0012] Furthermore, the lifting end telescopic rod is threadedly connected to the rotating connector, and the force-applying end telescopic rod is threadedly connected to the rotating connector.

[0013] Beneficial Effects

[0014] The present invention has a compact overall structure and occupies a small space, and can adapt to the narrow working space in the shield tunnel construction environment, thereby solving the problem that the existing correction devices are mostly applied to the service segments and are complicated to operate.

[0015] The present invention is suitable for the segment assembly stage, has high correction efficiency and strong structural stability, and not only avoids the misalignment problem during the construction process, but also improves the quality and efficiency of shield tunnel assembly, meeting the actual needs of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the ear plate structure of the present invention; Figure 3 This is a top view of the ear plate of the present invention; Figure 4 This is a left side view of the ear plate of the present invention; Figure 5 This is a front view of the ear plate of the present invention; Figure 6 This is a schematic diagram of the force application platform structure of the present invention; Figure 7 A top view of the force application platform of the present invention; Figure 8 This is a front view of the force application platform of the present invention; Fig. 9 This is a right side view of the force application platform of the present invention; Fig.10 It is a schematic diagram of the structure of the rotary connector of the present invention; Fig.11 It is a front view of the rotary connector of the present invention; Fig.12 A top view of the rotary connector of the present invention; Fig.13 It is a right side view of the rotary connector of the present invention; Fig.14 This is a schematic diagram of the fixed platform structure of the present invention; Fig.15 A top view of the fixed platform of the present invention; Fig.16 It is a left view of the fixed platform of the present invention; Fig.17 It is a front view of the fixed platform of the present invention; Fig.18 This is a schematic diagram of the structure of the lifting end telescopic rod of the present invention; Fig.19 It is a schematic diagram of the structure of the telescopic rod at the force-applying end of the present invention.

[0017] Among them, 1. telescopic rod at the lifting end; 2. rotating connector; 3. connecting bolts; 4. ear plate; 5. fixed platform; 6. telescopic rod at the force-applying end; 7. force-applying platform; 8. holding handle; 9. capping block. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0023] Example 1

[0024] refer to Figure 1-Figure 19 , a misalignment correction device suitable for shield tunnel assembly, comprising: A fixing mechanism, the fixing mechanism is fixed on an adjacent block adjacent to the capping block 9; The force applying mechanism is rotatably arranged on the upper side of the fixing mechanism, and one end of the force applying mechanism is located on the upper side of the capping block 9, and the other end is located on the upper side of the adjacent block.

[0025] The present invention achieves high efficiency and accuracy of correction work by optimizing structural design.

[0026] In this embodiment, the fixing mechanism includes: an ear plate 4, a first end of which is detachably mounted on the adjacent block via a connecting bolt 3; In a specific implementation, the ear plate 4 is nested on the connecting bolt 3 of the adjacent block by sleeve connection.

[0027] The fixed platform 5 is located on the upper side of the adjacent block, and the first end of the fixed platform 5 is hinged to the second end of the ear plate 4, thereby providing a stable support point for the force-applying mechanism, and there is no need to drill holes in the pipe segment to avoid damaging the pipe segment structure.

[0028] In this embodiment, a circular axis is provided on the fixed platform 5 so that the force applying mechanism can rotate along the circular axis.

[0029] In this embodiment, the force applying mechanism includes: A rotating connector 2, which is rotatably disposed on the upper side of the fixed platform 5; A lifting end telescopic rod 1, the lifting end telescopic rod 1 is located on the upper side of the adjacent block; the first end of the lifting end telescopic rod 1 is a free end, and the second end is fixedly connected to the rotating connector 2; The force-applying end telescopic rod 6 is located on the upper side of the capping block 9 ; the first end of the force-applying end telescopic rod 6 is fixedly connected to the rotating connector 2 , and the second end is hinged with a force-applying platform 7 .

[0030] During specific implementation, the rotating connector 2 can rotate around the circular axis of the fixed platform 5 .

[0031] In this embodiment, the contact surface of the force-applying platform 7 is arc-shaped and matches the contact surface of the capping block 9 to better fit the contact surface of the capping block and avoid deviation due to uneven contact.

[0032] In this embodiment, the lifting end telescopic rod 1 and the force-applying end telescopic rod 6 are both made of alloy steel, and the surface is carbonized.

[0033] Preferably, the telescopic rod 1 at the lifting end and the telescopic rod 6 at the force-applying end both adopt a three-section nested design. The rods are made of alloy steel and the surface is nitrided, which makes them corrosion-resistant and wear-resistant, and they can adapt to the high humidity and highly corrosive environment in the shield tunnel. At the same time, they are equipped with a rotating locking piece, which can flexibly adjust the length of the telescopic rod according to the size of the pipe segment to improve the correction adaptability.

[0034] In this embodiment, a gripping handle 8 is connected to the end of the first end of the lifting end telescopic rod 1 .

[0035] In specific implementation, during the segment assembly process, the holding handle 8 is lifted by artificial force, so that the holding handle 8 and the lifting end telescopic rod 1 are rotated in the direction of the segment away from the adjacent block within an angle range of 0° to 60°, and at the same time, the force-applying end telescopic rod 6 and the hinged force-applying platform 7 are rotated in the direction of the segment close to the capping block 9, so that the capping block 9 is firmly embedded in the segment lining ring by utilizing the lever principle, thereby significantly improving the assembly accuracy.

[0036] In this embodiment, the lifting end telescopic rod 1 is threadedly connected to the rotating connector 2 , and the force-applying end telescopic rod 6 is threadedly connected to the rotating connector 2 .

[0037] Working principle: By manually applying force to lift the gripping handle 8, the force-applying mechanism can accurately correct the misalignment of the capping block 9 to the designed position, effectively avoiding problems such as water seepage and stiffness reduction in the segment joints. The present invention has a simple structure, convenient installation, and efficient operation. It can adapt to the narrow space requirements in shield tunnel construction. In application, it effectively solves the problems that traditional correction devices are mostly used for service segments, are complicated to operate, and lack adaptability. It can quickly and efficiently correct the misalignment of the capping block during the segment assembly stage, avoiding construction quality problems such as water seepage and stiffness reduction in the segment joints caused by misalignment, significantly improving the quality and efficiency of shield tunnel assembly, and meeting actual construction needs.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A misalignment correction device suitable for shield tunnel assembly, characterized in that: include: A fixing mechanism, wherein the fixing mechanism is fixed to an adjacent block adjacent to the capping block; The force applying mechanism is rotatably arranged on the upper side of the fixing mechanism, and one end of the force applying mechanism is located on the upper side of the capping block, and the other end is located on the upper side of the adjacent block.

2. The misalignment correction device suitable for shield tunnel assembly according to claim 1, characterized in that: The fixing mechanism comprises: an ear plate, a first end of which is detachably mounted on the abutment block via a connecting bolt; A fixed platform is located on the upper side of the adjacent block, and a first end of the fixed platform is hinged to the second end of the ear plate.

3. The misalignment correction device suitable for shield tunnel assembly according to claim 2, characterized in that: The force applying mechanism comprises: A rotating connector, the rotating connector being rotatably disposed on an upper side of the fixed platform; A lifting end telescopic rod, the lifting end telescopic rod is located on the upper side of the adjacent block; the first end of the lifting end telescopic rod is a free end, and the second end is fixedly connected to the rotating connector; A force-applying end telescopic rod, wherein the force-applying end telescopic rod is located on the upper side of the capping block; the first end of the force-applying end telescopic rod is fixedly connected to the rotating connector, and the second end is hinged with a force-applying platform.

4. The misalignment correction device suitable for shield tunnel assembly according to claim 3 is characterized in that: The contact surface of the force-applying platform is arc-shaped and matches the contact surface of the capping block.

5. The misalignment correction device suitable for shield tunnel assembly according to claim 3 is characterized in that: The lifting end telescopic rod and the force-applying end telescopic rod are both made of alloy steel, and the surfaces are carbonized.

6. The misalignment correction device suitable for shield tunnel assembly according to claim 3, characterized in that: The end of the first end of the lifting end telescopic rod is connected with a gripping handle.

7. The misalignment correction device suitable for shield tunnel assembly according to claim 3 is characterized in that: The lifting end telescopic rod is threadedly connected to the rotating connector, and the force-applying end telescopic rod is threadedly connected to the rotating connector.

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