Shield tunnel segment damage repairing equipment

By unfolding the support rod to form a ring structure and injecting grout, combined with the guiding and self-locking mechanism, the problems of loose connection and soil fall-off when shield tunnel segments are damaged are solved, thus achieving the stability of the grouting process and the stability of the tunnel.

CN120889596AActive Publication Date: 2025-11-04UNIV OF SCI & TECH BEIJING
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Patent Information

Application Number
CN202511280998.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2025-11-04
Estimated Expiration
2045-09-09

AI Technical Summary

Technical Problem

When shield tunnel segments are damaged, problems such as loose connections, large misalignment spaces, shaking of the grouting head, and loose soil falling off occur during the grouting process, resulting in an unclean working face and difficulty in timely reinforcement.

Method used

The structure is formed by unfolding support rods. Grout is injected into the support rods and the grout is reinforced by a guiding mechanism and a self-locking mechanism. Soft rings guide the soil to solidify, connecting rods fix the segments, and guide grooves and balance bars control the flow of grout.

Benefits of technology

It effectively reinforces the tunnel segments, prevents segment misalignment, keeps the working face clean, ensures the stability and sealing of the grouting process, and enhances the stability and connection strength of the tunnel segments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses shield tunnel segment damage repairing equipment. Comprising a frame body, an unfolding mechanism is arranged on one side of the frame body, the unfolding mechanism comprises an unfolding rod, a first rod, a second rod and a supporting rod, a guide mechanism is arranged in the supporting rod, the guide mechanism comprises a ventilation groove, a balance strip and a guide groove, the ventilation groove is formed in one side of the supporting rod, and the balance strip is arranged in the ventilation groove. And a balance strip is rotationally arranged in the supporting rod. The multiple supporting rods form a complete ring through unfolding of the supporting rods, meanwhile, grout can be injected into the supporting rods, the grout reinforces the interiors of the supporting rods, the grout can be discharged along the tops in the grouting process, meanwhile, the grout can flow along the edges, falling loose soil and the grout are solidified, and the grouting effect is improved. And meanwhile, after the supporting rod is reinforced, the connecting rod can be installed on the lower portion of the supporting rod, so that the two pipe pieces can be fixed through downward extending, and sliding between the pipe pieces is prevented.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe repair, in particular to a shield tunnel pipe damage repair device. BACKGROUND

[0002] When the shield tunnel pipe is damaged, grouting needs to be performed on the pipe, and reinforcement grouting is performed between two pipes, since drilling is required on the pipe before grouting, grouting is performed after drilling, the whole formed by grouting is not tightly connected with the two pipes, so that it has a certain dislocation space, dislocation is prone to occur between the two pipes, and the grouting head is prone to shake during the grouting process, causing the working surface to be not neat, and meanwhile, loose soil remaining in the shield is prone to fall off during the grouting process, and the loose soil cannot be reinforced in time. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a shield tunnel pipe damage repair device, which can expand multiple support rods into a complete ring, and inject grout into the support rods to reinforce the inside of the support rods.

[0004] To solve the above technical problems, the present application provides the following technical scheme:

[0005] The present application comprises a frame, one side of the frame is provided with an expansion mechanism, the expansion mechanism comprises an expansion rod, a first rod, a second rod and a support rod, the inside of the support rod is provided with a guide mechanism, the guide mechanism comprises a ventilation slot, a balance bar and a guide slot, the ventilation slot is formed on one side of the support rod, the balance bar is rotatably arranged in the inside of the support rod, the two sides of the balance bar are provided with guide edges, the guide slot is arranged in the inside of the support rod, the upper surface of the support rod is provided with a soft ring, the inside of the support rod is provided with a self-locking mechanism, the self-locking mechanism comprises a self-locking rod, a pushing rod and a self-locking spring, the self-locking rod is rotatably arranged in the inside of the support rod, a communication channel is formed on one side of the self-locking rod, and a control ring is rotatably arranged in the middle of the frame.

[0006] The technical scheme of the present application has the following beneficial technical effects:

[0007] The support rod is expanded to form a complete ring, the inside of the support rod can be injected with slurry, the slurry can reinforce the inside of the support rod, the slurry can flow along the top during the grouting process, the slurry can flow along the edge, the falling loose soil can be solidified with the slurry, the edge of the support rod is reinforced, the connecting rod can be installed below after the support rod is reinforced, the downward extension can fix two pipe pieces to prevent the pipe pieces from sliding, the soft ring protrusion can guide the flow of the slurry, and the falling soil can be distributed along the position of the support rod for solidification. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The schematic diagram of the frame body installation structure of the present application is shown in the figure.

[0009] Figure 2 The schematic diagram of the support rod retraction of the present application is shown in the figure.

[0010] Figure 3 The schematic diagram of the middle section of the support rod of the present application is shown in the figure.

[0011] Figure 4 The schematic diagram of the upper side of the support frame of the present application is shown in the figure.

[0012] Figure 5 The schematic diagram of the frame body of the present application is shown in the figure.

[0013] The figure shows that: 1, frame body; 2, expansion rod; 3, No. 1 rod; 4, No. 2 rod; 5, support rod; 6, ventilation groove; 7, balance bar; 8, guide groove; 9, bottom groove; 10, guide edge; 11, soft ring; 12, self-locking rod; 13, push rod; 14, self-locking spring; 15, communication channel; 16, control ring; 17, long channel; 18, initial groove; 19, initial block; 20, self-locking groove; 21, inner groove; 22, outer groove; 23, inner block; 24, communication port; 25, lifting rod; 26, semicircular hole; 27, connecting rod; 28, rotation groove; 29, input groove; 30, butt joint frame; 31, butt joint channel. DETAILED DESCRIPTION

[0014] The present embodiment is shown in the accompanying drawings Figure 1 The present application is shown in the accompanying drawings Figure 1 The present application is shown in the accompanying drawings Figure 2As shown, first control ring 16 rotates to drive No. 1 rod 3 to rotate on frame 1 (also because No. 1 rod 3 is hinged to the other end of support rod 5 through No. 2 rod 4), because a straight slot is arranged on the edge of control ring 16, which can be lapped on No. 1 rod 3, and No. 1 rod 3 is arranged to rotate on frame 1, so that No. 1 rod 3 can rotate Figure 2 As shown, a bottom groove 9 is arranged on the lower side of control ring 16, which is a bevel slot, and docking frame 30 is horizontally slidably arranged on one side of frame 1 (because an input slot 29 is arranged on the edge of frame 1, and docking frame 30 is slidably arranged on one side of input slot 29, in order to prevent docking frame 30 from rotating relatively on input slot 29, the cross section of the sliding position of docking slot and input slot 29 needs to be adapted to be elliptical, because the ellipse and the elliptical hole can slide relatively and cannot rotate relatively), so that docking frame 30 can move towards the center of frame 1 with the rotation of control ring 16, and docking frame 30 extends downwards to lap on the edge of unfolding rod 2, as shown in the accompanying drawings Figure 2 As shown, docking frame 30, unfolding rod 2 and No. 1 rod 3 rotate synchronously, which can make support rod 5 rotate, as shown in the accompanying drawings Figure 3 As shown, the center of support rod 5 coincides with the center of frame 1, and support rod 5 can be clamped on the preset slot because the preset slot is arranged on the pipe piece, which is the switching process of the unfolding and non-unfolding of frame 1, and the unfolding and non-unfolding are controlled by lifting rod 25, which is vertically slidably arranged on the edge of frame 1, a rotating groove 28 is arranged on the edge of control ring 16, control ring 16 can rotate with the upward movement of lifting rod 25, achieving the effect of control ring 16 controlling the unfolding of docking frame 30, unfolding rod 2 and No. 1 rod 3, and a corresponding semicircular hole 26 is arranged on the bottom of frame 1 and lifting rod 25, the two holes form a complete hole with threaded stripes, and connecting rod 27 is screwed on the threaded hole, and then a steel plate is welded on the bottom of connecting rod 27, which can fix the pipe piece, as shown in the accompanying drawings Figure 1 As shown, the effect of frame 1 of the present scheme is far more than this, and the effect of frame 1 will be introduced below.

[0015] First, frame 1 is clamped in the preset slot (the preset slot is rotated by drilling equipment) through support rod 5, and a circular hole is arranged in the middle of frame 1, which can pass through the grouting head, and the outer diameter of the grouting head is adapted to the inner diameter of frame 1, so that frame 1 can support grouting of the grouting head, which is the first effect of frame 1.

[0016] The frame body 1 can be clamped along the outer side of the preset slot after installation, and the lower part can be connected with the connecting rod 27, which can fix two adjacent pipe pieces according to the steel plate. The upper part is introduced to be installed between two pipe pieces, which can prevent the offset between the two pipe pieces, which is the second effect of the frame body 1.

[0017] The frame body 1 can make the outer side close to the edge of the preset slot after installation, and along with the vibration generated in the grouting process, the dust and rock blocks in the process can be accumulated along the edge of the supporting rod 5, achieving the effect of protecting the work clean, which is the third effect of the frame body 1.

[0018] With the accumulation of dust and rock blocks on the edge of the supporting rod 5, the frame body 1 is then grouted along the edge of the supporting rod 5, achieving the effect of closing the edge and solidifying the inside, increasing the stability and sealing of the frame body 1, which is the fourth effect of the frame body 1.

[0019] Effect 1 is the fixed support of the scheme, because the frame body 1 cannot be separated from the preset slot after installation, in order to make the scheme have a stability after unfolding, a self-locking rod 12 is arranged inside the supporting rod 5, one side of the self-locking rod 12 is a self-locking spring 14, the self-locking spring 14 is an arc spring, as shown in the accompanying drawings Figure 3 When the self-locking spring 14 is in the state of being pressed, it will be released quickly under the action of the self-locking spring 14 once there is no limit, and the self-locking rod 12 has a ring-shaped initial slot 18 on one side, the surface of the initial slot 18 is inserted with an initial block 19, so the self-locking rod 12 cannot be released, and the inside of the unfolding rod 2 of the scheme is slidably provided with a pushing rod 13, which will be inserted into the inside of the supporting rod 5 when the supporting rod 5 is rotated to the unfolded state, because there is a small hole in the inside of the supporting rod 5 through the pushing rod 13, and one side of the pushing rod 13 has a spring, as shown in the accompanying drawings Figure 3As shown, at this time the spring is in the original length state, so the pushing rod 13 moves in the oblique right direction when not unfolded, at this time the spring is in the elongated state, and the initial block 19 is slidably arranged in the support rod 5 and slides towards the center of the frame body 1, and the sliding direction of the pushing block is also oblique, so that the initial block 19 is pushed and finally separated from the initial block 19 (one side of the initial block 19 extends along the moving track of the pushing rod 13, and finally separated due to the different sliding track limits), so that the initial block 19 is separated from the initial slot 18 under the action of the pushing block, at this time the self-locking rod 12 is quickly rotated under the action of the self-locking spring 14, so that the self-locking rod 12 is rotated into the next support rod 5, and the self-locking slot 20 is arranged in the middle of the self-locking rod 12, so that the pushing rod 13 is inserted into the self-locking slot 20 under the action of the spring to form the fixation between the pushing rod 13 and the self-locking rod 12, so that the frame body 1 is more stable.

[0020] With the stability of the frame body 1 introduced in the previous paragraph, corresponding steel plates and connecting rods 27 are arranged on the basis to clamp the pipe pieces below the frame body 1, and the frame body 1 limits the pipe pieces, so that two adjacent pipe pieces are difficult to slide out of position, which is effect two based on effect one.

[0021] An arc-shaped circumferential soft ring 11 is arranged between the four support rods 5, which covers the edge of the frame body 1 and connects the adjacent support rods 5 (the soft ring 11 has a certain elasticity), so that the soft ring 11 wraps the frame body 1 except the middle part passing through the grouting equipment, and since other structures are difficult to see, only the soft ring 11 is shown in the drawings. Figure 1 Due to the effect of the soft ring 11, the frame body 1 has an isolation effect during grouting, ensuring the working environment, and since the frame body 1 of the present scheme can finally be grouted, the soft ring 11 also has other effects which will be introduced below. The lifting rod 25 is below the soft ring 11, and the upward movement of the lifting rod 25 can lift the soft ring 11 as shown in the drawings. Figure 1 As shown, the falling dust is easily connected to the position of the support rod 5 under the guidance of the soft ring 11.

[0022] In order to introduce effect four of the present scheme, the inner slot 21 and the outer slot 22 of the present scheme need to be introduced, and the inner slot 21 and the outer slot 22 of the present scheme are as shown in the drawings. Figure 4As shown, the outer groove 22 is arranged inside the control ring 16, and the outer groove 22 is arranged outside the frame body 1, and the inner block 23 (one side of the rotation center of the inner block 23 is provided with a torsion spring) forms a one-way rotation structure, so as the scheme unfolds, that is, the control ring 16 rotates counterclockwise, the inner groove 21 can fix the inner block 23, so that the frame body 1 cannot be retracted after unfolding, and the scheme can input slurry in the input groove 29, and the grouting head along the side of the frame body 1 grouting can be grouted, and the input groove 29 can be grouted in correspondence with the input groove 29, and the inner groove 21 and the outer groove 22 are provided with a communication port 24, and the control ring 16 and the frame body 1 are sealed rotation, so that the inner groove 21 and the outer groove 22 can store slurry, and the input groove 29 along the middle partition, the slurry can only along the inner groove 21, the outer groove 22 finally reaches the docking channel, so that the inner groove 21 and the outer groove 22 can be filled with slurry during the input of the slurry, and the slurry between the outer groove 22 and the inner groove 21 is like a gear ring, so that the rotation between the two is more difficult, that is, the control ring 16 is more fixed, so that the frame body 1 is more stable.

[0023] With the docking frame 30 docking channel can enter the slurry (finally along the outer groove 22 to the docking channel, the docking frame 30 and the docking frame 30 are sealed sliding, and on one side of the docking frame 30 when the frame body 1 is not unfolded, it is blocked input groove 29, that is, when not unfolded, it protects the input groove 29, when unfolded, it moves to the center of the frame body 1 to open the input groove 29, as shown in the description Figure 5 As shown), and the docking channel can be connected along the two side communication long channels 17 and the first rod 3, the first rod 3 and the second rod 4 can be connected to one side of the support rod 5, and the long channel 17 can be connected to the other side of the support rod 5, so that the support rod 5 can be grouted inside, and the continuous injection of the grouting can make the support rod 5 form a ring structure to fill the slurry.

[0024] To achieve the desired effect of forming a ring after the support ring is filled, and considering the extremely low probability that this ring will be located at the exact center of the tunnel (meaning the pre-set groove can be tilted), the ring itself is also tilted. Since liquids are fluid, to ensure the grout fills most of the ring, this design incorporates a rotatable balance bar 7 and a guide groove 8 within the ring. The upper part of the balance bar 7 is rotatably positioned at the inner top of the support rod 5. In a horizontal position, the balance bar 7 is vertical (the ventilation groove 6 is open, allowing for smooth grout delivery). As the support rod is positioned below, the balance bar 7 remains vertical. As the grout reaches the guide groove 8, guided by the guide groove 8 and the guide edge 10, the balance bar 7 is propelled by the grout. Rotate along the direction of ventilation slot 6, causing the balance bar 7 to block ventilation slot 6. That is, if one balance bar 7 is horizontal, grout will be injected first and then the ventilation slot 6 will be sealed. There are two possibilities for a horizontal position: the support ring is horizontal, all four balance bars 7 are horizontal, or one of the support rods 5 is tilted downwards, and the downward tilt direction separates one of the balance bars 7. In this case, two balance bars 7 will be horizontal. The two tilted balance bars 7 will be at different points. The one tilted towards ventilation slot 6 will be at a lower position, and the one tilted in the other direction (away from ventilation slot 6) will be at a higher position. Therefore, the grout will eventually fill along the lower position, blocking the ventilation slot 6 either horizontally or tilted along it, and finally reaching the higher position. The higher position is reached by rotating to the right (as shown in the instruction manual). Figure 3 As shown), the slurry will not push against the guide edge 10 to cause the balance bar 7 to rotate as it flows. The slurry will eventually flow out along the ventilation groove 6 at the top. After the slurry flows out, since the soft ring 11 in this scheme is in a bulging state, and because the middle of the soft ring 11 is pushed up by the lifting rod 25, the slurry can only flow along the edge when it is discharged above the frame 1, eventually covering the edge and solidifying with the rolling stones. This is the function of the balance bar 7.

[0025] As the grout fills, the push rod 13 inside the long channel 17 acts like a steel bar, mixing with the grout to solidify and increase stability. At the same time, the connecting frame 30, rod 3, rod 4, unfolding rod 2, and support rod 5 form a trapezoidal structure for better stability and less rebound. To protect the sealing of the grout flow, an extension is provided at the rotating part between rod 3 and rod 4 to prevent grout from flowing out. At the same time, rod 4 and support rod 5 also need to be provided with an extension structure so that they can rotate and connect. Finally, the grouting can also complete the filling of frame 1, that is, frame 1 is left, and grouting is performed above the steel plate.

[0026] The side of the frame body 1 is provided with an unfolding mechanism, the unfolding mechanism comprises an unfolding rod 2, a first rod 3, a second rod 4 and a supporting rod 5, the inside of the supporting rod 5 is provided with a guide mechanism, the guide mechanism comprises a ventilation groove 6, a balance strip 7 and a guide groove 8, the ventilation groove 6 is opened in the side of the unfolding rod 2, the inside of the supporting rod 5 is rotatably provided with the balance strip 7, the two sides of the balance strip 7 are provided with guide edges 10, the guide groove 8 is arranged in the inside of the supporting rod 5, the upper surface of the supporting rod 5 is provided with a soft ring 11, the inside of the supporting rod 5 is provided with a self-locking mechanism, the self-locking mechanism comprises a self-locking rod 12, a pushing rod 13 and a self-locking spring 14, the inside of the supporting rod 5 is rotatably provided with the self-locking rod 12, the side of the self-locking rod 12 is opened with a communication channel 15, the middle part of the frame body 1 is rotatably provided with a control ring 16, the edge of the frame body 1 is rotatably provided with the unfolding rod 2, the side of the unfolding rod 2 is rotatably provided with the supporting rod 5, the inside of the unfolding rod 2 is slidably provided with a pushing rod 17, the edge of the self-locking rod 12 is opened with an initial groove 18, the surface of the initial groove 18 is inserted with an initial block 19, the inside of the supporting rod 5 is slidably provided with the initial block 19, the middle part of the self-locking rod 12 is opened with a self-locking groove 20, the edge of the self-locking rod 12 is provided with the self-locking spring 14, the control ring 16 and the frame body 1 are provided with a locking mechanism, the locking mechanism comprises an inner groove 21, an outer groove 22 and an inner block 23, the outer side of the frame body 1 is opened with the inner groove 21, the inner side of the control ring 16 is opened with the outer groove 22, the inside of the outer groove 22 is rotatably provided with the inner block 23, the lower surface of the outer groove 22 is opened with a communication port 24, the side of the frame body 1 is slidably provided with a lifting rod 25, the lower surface of the lifting rod 25 is opened with a semicircular hole 26, the lower surface of the semicircular hole 26 is threadedly connected with a connecting rod 27, the side of the lifting rod 25 is overlapped with a rotating groove 28, the rotating groove 28 is opened in the edge of the control ring 16, the edge of the frame body 1 is provided with an input groove 29, the surface of the input groove 29 is slidably provided with a docking frame 30, the inside of the docking frame 30 is opened with a docking channel 31, the inside of the unfolding rod 2 is provided with a long channel 17, the lower surface of the control ring 16 is provided with a bottom groove 9, the surface of the bottom groove 9 is overlapped with the docking frame 30, the edge of the control ring 16 is opened with a straight groove, the surface of the straight groove is overlapped with the first rod 3, the first rod 3 is rotatably arranged in the edge of the frame body 1, the other end of the first rod 3 is hingedly provided with the second rod 4, the other end of the second rod 4 is hingedly provided with the supporting rod 5, the lower surface of the docking frame 30 is overlapped with the unfolding rod 2, the edge of the supporting rod 5 is provided with a preset groove.

[0027] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, all the embodiments need not and cannot be exhausted. The changes or variations derived therefrom are still within the protection scope of the patent application claims.

Claims

1. A shield tunnel segment damage repair device, characterized in that, The system includes a frame (1), on one side of which is an unfolding mechanism. The unfolding mechanism includes an unfolding rod (2), a first rod (3), a second rod (4), and a support rod (5). The support rod (5) has a guide mechanism inside, which includes a ventilation slot (6), a balance bar (7), and a guide groove (8). The ventilation slot (6) is located on one side of the support rod (5). The balance bar (7) is rotatably installed inside the support rod (5), and guide grooves are provided on both sides of the balance bar (7). The guide groove (8) is located inside the support rod (5) and a soft ring (11) is provided on the upper surface of the support rod (5). A self-locking mechanism is provided inside the support rod (5). The self-locking mechanism includes a self-locking rod (12), a push rod (13), and a self-locking spring (14). The self-locking rod (12) is rotatably located inside the support rod (5). A connecting channel (15) is provided on one side of the self-locking rod (12). A control ring (16) is rotatably provided in the middle of the frame (1).

2. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, The frame (1) is rotatably provided with an unfolding rod (2) on its side, and a support rod (5) is rotatably provided on one side of the unfolding rod (2). A push rod (13) is slidably provided inside the unfolding rod (2). An initial groove (18) is provided on the side of the self-locking rod (12). An initial block (19) is inserted into the surface of the initial groove (18). The initial block (19) is slidably provided inside the support rod (5).

3. The shield tunnel segment damage repair equipment according to claim 2, characterized in that, The self-locking rod (12) has a self-locking groove (20) in the middle and a self-locking spring (14) on the side.

4. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, A locking mechanism is provided between the control ring (16) and the frame (1). The locking mechanism includes an inner groove (21), an outer groove (22), and an inner block (23). The inner groove (21) is located on the outer side of the frame (1), and the outer groove (22) is located on the inner side of the control ring (16). The inner block (23) is rotatably arranged inside the outer groove (22), and a communication port (24) is provided on the lower surface of the outer groove (22).

5. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, A lifting rod (25) is slidably provided on one side of the frame (1). A semi-circular hole (26) is provided on the lower surface of the lifting rod (25). A connecting rod (27) is threadedly connected to the lower surface of the semi-circular hole (26). A rotating groove (28) is attached to one side of the lifting rod (25). The rotating groove (28) is located at the edge of the control ring (16).

6. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, The frame (1) has an input slot (29) on its side, and a docking frame (30) is slidably disposed on the surface of the input slot (29). The docking frame (30) has a docking channel (31) inside, and the unfolding rod (2) has a long channel (17) inside.

7. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, The lower surface of the control ring (16) is provided with a bottom groove (9), and a docking frame (30) overlaps the surface of the bottom groove (9).

8. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, The control ring (16) has a straight groove on its side, and a first rod (3) is attached to the surface of the straight groove. The first rod (3) is rotatably mounted on the side of the frame (1). The other end of the first rod (3) is hinged to a second rod (4), and the other end of the second rod (4) is hinged to a support rod (5).

9. The shield tunnel segment damage repair equipment according to claim 1, characterized in that, The lower surface of the docking frame (30) is connected to the unfolding rod (2).

10. A shield tunnel segment damage repair device according to claim 1, characterized in that, The support rod (5) has a pre-set groove at its edge.

Citation Information

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