A reinforcement device and repair method applicable to the penetrating cracks of shield segments

Abstract

The present invention discloses a reinforcement device and a repair method for the through cracks of shield segments, and the present invention relates to the technical field of tunnel engineering. The reinforcement device and the repair method for the through cracks of shield segments, through the cooperation between the crushing and vibrating component and the jacking component, during use, the crack can be first cut through the crushing and vibrating component, and then the repair module can be jacked into the cutting position through the jacking component, and then filling and sealing treatment can be carried out, which ensures the repair effect of the built shield tunnel segments and improves the repair convenience at the same time. At the same time, through this repair method, the disturbance to the adjacent soil body can be minimized, and the occurrence of soil instability and thus water leakage and sand leakage accidents can be avoided, ensuring the construction safety from the construction principle. Through the cooperation of the cross-ring force transmission device, the generation of hazards such as stress concentration can be avoided, ensuring that the repaired segments have good engineering performance.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and particularly to a reinforcement device and a repair method for the penetrating cracks of shield segments. Background Art

[0002] Shield segments are the main assembled components in shield construction, and are the innermost barrier of the tunnel, bearing the functions of resisting soil pressure, groundwater pressure and some special loads; shield segments are the permanent lining structure of shield tunnels, and the quality of shield segments is directly related to the overall quality and safety of the tunnel, affecting the waterproof performance and durability of the tunnel.

[0003] Most of the existing repair methods and specifications for shield tunnel segments can only repair the shield tunnel segments that have not been installed, and can only be repaired by methods such as grinding and filling mortar. The time cost is high while the repair effect is average. When repairing the shield tunnel segments that have been built, it is more cumbersome and it is difficult to ensure the repair effect of the segments. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a reinforcement device and a repair method for the penetrating cracks of shield segments, which solves the problems of poor repair effect and cumbersome repair method for the shield tunnel segments that have been built.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: A reinforcement device for the penetrating cracks of shield segments, including a machine body, driving wheels are rotatably arranged around the bottom of the machine body, an operation panel and a printing module are respectively fixedly installed on one side and the middle of the top surface of the machine body, a robotic arm is fixedly installed on the other side of the top surface of the machine body, and a cooling component is arranged on one side of the top surface of the machine body. It is characterized in that: a positioning frame is fixedly installed at the end of the robotic arm, a main body is fixedly installed inside the positioning frame, a crushing and vibrating component and a jacking component are fixedly installed inside the main body through threaded bolts, positioning holes are opened around the main body, positioning bolts are arranged inside the positioning holes, and an assembling component is arranged inside. The crushing and vibrating component includes a hollow frame, the hollow frame is fixedly installed inside the main body through threaded bolts, a rubber sealing strip is fixedly installed inside the main body, sliding grooves are opened on both sides inside the hollow frame, and transmission rods are slidably installed on both sides inside through the sliding grooves. Arc-shaped grooves are opened inside the two transmission rods, and positioning disks are slidably installed inside the arc-shaped grooves. A small stone crusher is fixedly installed on the top surface of one of the positioning disks, and a small concrete cutting machine is arranged inside the other positioning disk. Transmission components are arranged between the two transmission rods and the hollow frame, and reaction force fixing devices are fixedly installed around the bottom of the machine body.

[0006] Preferably, the transmission assembly includes a first hydraulic cylinder, and there are two first hydraulic cylinders which are respectively and fixedly installed on both sides inside the hollowed-out frame. The end parts of the two first hydraulic cylinders are respectively fixedly connected to the outer sides of the corresponding transmission rods. Hydraulic cylinders two are fixedly installed at the end parts of the two transmission rods, and the end parts of the two hydraulic cylinders two are respectively fixedly connected to the bottoms of the corresponding positioning disks.

[0007] Preferably, the jacking assembly includes a jacking module which is fixedly installed inside the main body through a threaded bolt. A jacking plate is slidably installed inside the jacking module. A jacking device is fixedly installed between the jacking plate and the jacking module. A repair module is arranged outside the jacking plate. A number of holes are formed inside the repair module, and a number of cross-ring force transmission devices are inserted into the repair module through the number of holes.

[0008] Preferably, the assembling assembly includes assembling modules, and there are several assembling modules, and plugs are fixedly installed on one side of each of them. Slots corresponding to the plugs are formed on the other sides of the several assembling modules. The several assembling modules and the main body are respectively connected into a whole through the cooperation of the corresponding plugs and slots.

[0009] Preferably, the reaction force fixing device includes a telescopic rod which is fixedly installed on one side of the bottom of the machine body, and a reaction force positioning plate is fixedly installed at the end of the telescopic rod.

[0010] A repair method applicable to the penetration cracks of shield segments specifically includes the following steps:

[0011] S1. Crack detection and main body adjustment: Detect the relevant parameters of the segment cracks, specifically the crack direction, length, gap width, whether there is water leakage or sand leakage, etc.; according to the parameters such as the length of the crack, determine the specifications that need to be selected for the repair module; then adjust the length of the main body according to the crack parameters of the segment. By increasing or decreasing the number of assembling modules until the length of the main body corresponds to the crack parameters, and then assemble the main body and the assembling modules through the cooperation of the slots and plugs, and fixedly install the assembled main body to the positioning frame through the cooperation of the positioning holes and the positioning bolts.

[0012] S2. Crack cutting: Fix the crushing and vibrating component to the inside of the main body through threaded bolts. The maintenance personnel control the operation panel to lift the crushing and vibrating component by the robotic arm, adjust the angle to fit the segment crack, and compact the rubber sealing strip to prevent water and sand leakage. Before cutting, set up the cooling component, attach the freezing coil to the cutting position of the segment, and then run the cooling component to make the hardness of the silt soil behind the segment reach a certain value. Then turn off the cooling component and remove the freezing coil to avoid collapse during direct cutting. After removing the freezing coil, run the small concrete cutting machine to cut out a rectangle at the crack. After cutting, start the small stone breaker to break the small concrete segments and push them outward. Through the cooperation of the corresponding hydraulic cylinder 1 and hydraulic cylinder 2, the positioning plate can be translated along the corresponding transmission rod and along the opening direction of the chute with the transmission rod, so that the small concrete cutting machine and the small stone breaker can achieve horizontal and vertical displacements, thereby covering the entire crack area through the clamping of the robotic arm.

[0013] S3. Repair: Remove the crushing and vibrating component and fix the jacking component to the inside of the main body through threaded bolts. Then install the repair module required for filling to the jacking plate, insert the cross-ring force transmission device into the hole opened inside the repair module. Then, through the cooperation of the jack and the jacking plate, push the repair module into the rectangular opening formed by cutting to complete the sealing. Then push the cross-ring force transmission device and grout. After grouting, seal the grouting port to complete the repair.

[0014] Beneficial effects

[0015] The present invention provides a reinforcement device and repair method for shield segment through cracks. Compared with the prior art, it has the following beneficial effects:

[0016] (1). For the reinforcement device and repair method for shield segment through cracks, through the cooperation between the crushing and vibrating component and the jacking component, during use, the crack can be first cut and processed by the crushing and vibrating component, and then the repair module can be pushed into the cutting position by the jacking component, and then filling and sealing are carried out. While ensuring the repair effect of the shield tunnel segment, it improves the repair convenience. At the same time, through this repair method, the disturbance to the adjacent soil body can be minimized, avoiding soil body instability and thus water and sand leakage accidents, and ensuring construction safety from the construction principle.

[0017] (2). For the reinforcement device and repair method for shield segment through cracks, through the setting of the jacking component, when the crack cutting is completed, through the cooperation of components such as the robotic arm, the repair module can be lifted to the cutting opening. At the same time, through the cooperation of the cross-ring force transmission device, the generation of hazards such as stress concentration can be avoided, ensuring that the repaired segment has good engineering performance.

[0018] (3) The reinforcement device and repair method applicable to the penetrating cracks of shield segments can assemble the main body according to parameters such as the length of the cracks through the main body and the rubber sealing strips arranged inside the main body, and fit the rubber sealing strips with the inner wall of the segments to avoid water leakage and sand leakage during cutting and smashing, ensuring the construction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the exploded structure of the smashing and vibrating component and the main body of the present invention;

[0021] Figure 3 Schematic diagram of the enlarged structure at point A of the present invention;

[0022] Figure 4 Schematic diagram of the exploded structure of the jacking component and the main body of the present invention;

[0023] Figure 5 Schematic diagram of the exploded structure of the main body of the present invention;

[0024] Figure 6 Schematic diagram of the structure of the cross-ring force transmission device of the present invention.

[0025] In the figure: 1, body; 101, drive wheel; 2, telescopic rod; 201, reaction force positioning plate; 3, operation panel; 4, printing module; 5, robotic arm; 6, positioning frame; 7, main body; 701, positioning hole; 702, assembly module; 7021, slot; 703, plug; 8, positioning bolt; 9, rubber sealing strip; 10, hollow frame; 1001, chute; 1002, hydraulic cylinder 1; 11, positioning disk; 12, small stone crusher; 13, small concrete cutting machine; 14, transmission rod; 1401, arc groove; 1402, hydraulic cylinder 2; 15, jacking module; 1501, jacking plate; 1502, repair module; 1503, hole; 16, shield tunnel; 17, cross-ring force transmission device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-6, the present invention provides a technical solution: a reinforcement device suitable for shield segment through cracks, including a body 1. Driving wheels 101 are rotatably arranged around the bottom of the body 1. An operation panel 3 and a printing module 4 are respectively fixedly installed on one side and the middle of the top surface of the body 1. The operation panel 3 is an existing 3D printing module, which can be responsible for printing a repair module 1502 of a suitable size according to the crack length. A robotic arm 5 is fixedly installed on the other side of the top surface of the body 1. A cooling component is arranged on one side of the top surface of the body 1. The cooling component is composed of an existing chilled brine circulation unit and a cooling coil, mainly used for freezing the outside of the segment cutting position to avoid collapse at the silt area. The robotic arm 5 is an existing six-axis robotic arm and is controlled by the operation panel 3. A positioning frame 6 is fixedly installed at the end of the robotic arm 5. A main body 7 is fixedly installed inside the positioning frame 6. A crushing and vibrating component and a jacking component are fixedly installed inside the main body 7 through threaded bolts. Positioning holes 701 are formed around the main body 7, positioning bolts 8 are arranged inside the positioning holes 701, and an assembly component is arranged inside. The crushing and vibrating component includes a hollow frame 10. The hollow frame 10 is fixedly installed inside the main body 7 through threaded bolts. A rubber sealing strip 9 is fixedly installed inside the main body 7. Sliding grooves 1001 are formed on both sides inside the hollow frame 10, and transmission rods 14 are slidably installed on both sides inside through the sliding grooves 1001. Arc-shaped grooves 1401 are formed inside the two transmission rods 14, and positioning disks 11 are slidably installed inside the arc-shaped grooves 1401. A small stone crusher 12 is fixedly installed on the top surface of one of the positioning disks 11, and a small concrete cutting machine 13 is arranged inside the other positioning disk 11. Transmission components are arranged between the two transmission rods 14 and the hollow frame 10. Reaction force fixing devices are fixedly installed around the bottom of the body 1;

[0028] In the embodiment of the present invention, the transmission component includes two hydraulic cylinders 1002, which are respectively fixedly installed on both sides inside the hollow frame 10. The end parts of the two hydraulic cylinders 1002 are respectively fixedly connected to the outer sides of the corresponding transmission rods 14. Hydraulic cylinders 1402 are fixedly installed at the end parts of the two transmission rods 14. The end parts of the two hydraulic cylinders 1402 are respectively fixedly connected to the bottoms of the corresponding positioning disks 11. The hydraulic cylinders 1002 and 1402 are existing hydraulic devices and are controlled by the operation panel 3;

[0029] In the embodiment of the present invention, the jacking assembly includes a jacking module 15. The jacking module 15 is fixedly installed inside the main body 7 through threaded bolts. A jacking plate 1501 is slidably installed inside the jacking module 15. A jacking device is fixedly installed between the jacking plate 1501 and the jacking module 15. The jacking device is an existing device and is controlled based on the operation panel 3. A repair module 1502 is arranged on the outer side of the jacking plate 1501. A number of holes 1503 are formed inside the repair module 1502. A number of cross-ring force transmission devices 17 are inserted into the repair module 1502 through the number of holes 1503. The assembly component includes an assembly module 702. There are a number of assembly modules 702, and a plug 703 is fixedly installed on one side of each of them. Slots 7021 corresponding to the plugs 703 are formed on the other sides of the number of assembly modules 702. The number of assembly modules 702 and the main body 7 are connected into one body through the cooperation of the corresponding plugs 703 and slots 7021 respectively. The reaction force fixing device includes a telescopic rod 2. The telescopic rod 2 is fixedly installed on one side of the bottom of the machine body 1. A reaction force positioning plate 201 is fixedly installed at the end of the telescopic rod 2. The cross-ring force transmission device 17 is inserted into the repair module 1502 through the hole 1503. The cross-ring force transmission device 17 is a long strip-shaped force transmission strip, which has a certain strength and good ductility, and can evenly transmit the concentrated force received at the position of the hole 1503 formed inside the repair module 1502 to the whole strip, ensuring the repair effect of the shield tunnel 16.

[0030] The present invention also provides a repair method applicable to the through cracks of shield segments, which specifically includes the following steps:

[0031] S1. Crack detection and main body adjustment: Detect the relevant parameters of the segment crack, specifically the crack direction, length, gap width, whether there is water leakage or sand leakage, etc.; According to the parameters such as the length of the crack, determine the required specification of the repair module 1502; Then adjust the length of the main body 7 according to the crack parameters of the segment. By increasing or decreasing the number of assembly modules 702 until the length of the main body 7 corresponds to the crack parameters, and then assemble the main body 7 and the assembly module 702 through the cooperation of the slot 7021 and the plug 703, and fixedly install the assembled main body 7 to the positioning frame 6 through the cooperation of the positioning hole 701 and the positioning bolt 8;

[0032] S2. Crack cutting: Fix and install the crushing and vibrating component inside the main body 7 through threaded bolts. The maintenance personnel control the operation panel 3, and use the robotic arm 5 to lift the crushing and vibrating component, adjust the angle to fit the segment crack, and compact the rubber sealing strip 9 to prevent water and sand leakage. Before cutting, set up the cooling component, attach the freezing coil to the cutting position of the segment, and then operate the cooling component to make the hardness of the silt soil behind the segment reach a certain value, then turn off the cooling component and remove the freezing coil to avoid collapse during direct cutting. After removing the freezing coil, operate the small concrete cutting machine 13 to cut out a rectangle at the crack. After cutting is completed, start the small stone crusher 12 to break up the small concrete segments and push them outward. Through the cooperation of the corresponding hydraulic cylinder 1002 and hydraulic cylinder 1402, the positioning plate 11 can be translated along the corresponding transmission rod 14 and along the opening direction of the chute 1001 as the transmission rod 14 moves, so that the small concrete cutting machine 13 and the small stone crusher 12 can achieve horizontal and vertical displacements, and thus cover the entire crack area through the clamping of the robotic arm 5.

[0033] S3. Repair: Remove the crushing and vibrating component and fix and install the jacking component inside the main body 7 through threaded bolts. Then install the repair module 1502 required for filling onto the jacking plate 1501, and insert the cross-ring force transmission device 17 into the hole 1503 opened inside the repair module 1502. Then, through the cooperation of the jack and the jacking plate 1501, the repair module 1502 is jacked into the rectangular opening formed by cutting to complete the sealing. Then push the cross-ring force transmission device 17 and grout. After grouting is completed, seal the grouting port to complete the repair.

[0034] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement device applicable to the penetrating cracks of shield segments, comprising a machine body (1). Driving wheels (101) are rotatably arranged around the bottom of the machine body (1). An operation panel (3) and a printing module (4) are respectively fixedly installed on one side and the middle of the top surface of the machine body (1). A robotic arm (5) is fixedly installed on the other side of the top surface of the machine body (1), characterized in that: A positioning frame (6) is fixedly installed at the end of the robotic arm (5). A main body (7) is fixedly installed inside the positioning frame (6). Inside the main body (7), a crushing and vibrating component and a jacking component can be respectively fixedly installed through threaded bolts. Positioning holes (701) are formed around the main body (7), positioning bolts (8) are arranged inside the positioning holes (701), and an assembling component is arranged inside the main body (7). The crushing and vibrating component includes a hollow frame (10). The hollow frame (10) can be fixedly installed inside the main body (7) through threaded bolts. A rubber sealing strip (9) is fixedly installed inside the main body (7). Sliding grooves (1001) are formed on both sides inside the hollow frame (10), and two transmission rods (14) are slidably installed on both sides inside the hollow frame (10) through the sliding grooves (1001). Arc-shaped grooves (1401) are formed inside the two transmission rods (14), and positioning discs (11) are slidably installed inside the arc-shaped grooves (1401). A small stone crusher (12) is fixedly installed on the top surface of one of the positioning discs (11), and a small concrete cutting machine (13) is arranged inside the other positioning disc (11). Transmission components are arranged between the two transmission rods (14) and the hollow frame (10). Reaction force fixing devices are fixedly installed around the bottom of the machine body (1). The transmission component includes two hydraulic cylinders I (1002), which are respectively fixedly installed on both sides inside the hollow frame (10). The end parts of the two hydraulic cylinders I (1002) are respectively fixedly connected to the outer sides of the corresponding transmission rods (14). Hydraulic cylinders II (1402) are fixedly installed at the end parts of the two transmission rods (14). The end parts of the two hydraulic cylinders II (1402) are respectively fixedly connected to the bottoms of the corresponding positioning discs (11). The jacking component includes a jacking module (15). The jacking module (15) can be fixedly installed inside the main body (7) through threaded bolts. A jacking plate (1501) is slidably installed inside the jacking module (15). A jacking device is fixedly installed between the jacking plate (1501) and the jacking module (15). A repair module (1502) is arranged on the outer side of the jacking plate (1501). The assembling component includes assembling modules (702). There are several assembling modules (702), and inserting blocks (703) are fixedly installed on one side of each of them. Slots (7021) corresponding to the inserting blocks (703) are formed on the other sides of the several assembling modules (702). The several assembling modules (702) and the main body (7) are connected into a whole through the cooperation of the corresponding inserting blocks (703) and slots (7021).

2. The reinforcing device for the penetrating cracks of the shield segment according to claim 1, wherein: The reaction force fixing device includes a telescopic rod (2). The telescopic rod (2) is fixedly installed on one side of the bottom of the machine body (1), and a reaction force positioning plate (201) is fixedly installed at the end of the telescopic rod (2).

3. A crack repair method uses the reinforcement device applicable to the penetrating cracks of shield segments described in any one of claims 1-2, characterized in that, Specifically, it includes the following steps: S1. Crack detection and main body adjustment: Detect relevant parameters of the segment cracks, specifically the crack orientation, length, gap width, and whether there is water or sand leakage; determine the specifications that the repair module (1502) needs to select according to the relevant parameters of the crack; then adjust the length of the main body (7) according to the crack parameters of the segment. By increasing or decreasing the number of assembly modules (702) until the length of the main body (7) corresponds to the crack parameters. Then, assemble the main body (7) and the assembly module (702) through the cooperation of the slot (7021) and the plug (703), and fix and install the assembled main body (7) to the positioning frame (6) through the cooperation of the positioning hole (701) and the positioning bolt (8). S2. Crack cutting: Fix and install the crushing and vibrating component to the inside of the main body (7) through a threaded bolt. Control the operation panel (3) by the maintenance personnel, lift the crushing and vibrating component through the robotic arm (5), adjust the angle to fit the segment crack, and compact the rubber sealing strip (9) to prevent water and sand leakage. Then, through the operation of the small concrete cutting machine (13), cut out a rectangle at the crack. After cutting is completed, start the small stone crusher (12) to break up the small concrete segments and push them outward. Through the cooperation of the corresponding hydraulic cylinder one (1002) and hydraulic cylinder two (1402), it is possible to achieve the translation of the positioning plate (11) along the corresponding transmission rod (14) and along the opening direction of the chute (1001) with the transmission rod (14), so that the small concrete cutting machine (13) and the small stone crusher (12) can achieve horizontal and vertical displacements, thereby covering the entire crack area through the clamping of the robotic arm (5). S3. Repair: Remove the crushing and vibrating component and fix and install the jacking component to the inside of the main body (7) through a threaded bolt. Then install the repair module (1502) required for filling to the jacking plate (1501), and insert the cross-ring force transmission device into the hole opened inside the repair module (1502). Then, through the cooperation of the jack and the jacking plate (1501), push the repair module (1502) into the rectangular opening formed by cutting to complete the plugging. Then push the cross-ring force transmission device and grout. After grouting is completed, plug the grouting port to complete the repair.

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