A shield tunnel convergence deformation reinforcement device

Abstract

The present invention relates to a shield tunnel convergence deformation reinforcement device. The present invention effectively solves the problem that existing brackets cannot reinforce the misaligned position of the track; the technical solution includes a reinforcement ring, one side of the reinforcement ring is provided with an offset extrusion mechanism, the offset extrusion mechanism includes a No. 1 capsule, a No. 2 capsule and an internal channel, the No. 1 capsule is integrally provided on one side of the reinforcement ring, the No. 2 capsule is integrally provided on the other side of the reinforcement ring, and an internal channel is provided between the No. 1 capsule and the No. 2 capsule. The reinforcement ring provided in this solution can be provided with multiple support rods, which can provide annular support for the tunnel. The multiple support rods can rotate the rotating ring when the tunnel is misaligned, so that multiple groups of support rods can be fixed at the same time, so that the support rods can contact the top of the tunnel. When the concrete is poured, the support rods can contact the tunnel and can act as steel bars. Under the action of the No. 1 capsule or the No. 2 capsule, the poured concrete can be shaped.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel reinforcement, and in particular to a shield tunnel convergence deformation reinforcement device. Background Art

[0002] During operation, shield tunnels inevitably experience convergent deformation, gradually changing from a round shape to a "duck egg" (vertical compression and lateral expansion) due to various factors, including the load and soil disturbance from the ground and surrounding buildings, construction work around the tunnel, tunnel structural construction, and vibration from subway trains. As the tunnel's operating time increases, this deformation gradually accumulates, posing a significant threat to the tunnel's structural safety. Excessive convergent deformation can intrude into tunnel construction limits and even equipment limits, seriously threatening operational safety. Existing technology uses reinforcement brackets, but the tunnel docking points are prone to misalignment, and existing brackets are unable to reinforce track misalignment, causing these misalignments to become increasingly severe.

[0003] In view of the above, we provide a shield tunnel convergence deformation reinforcement device to solve the above problems. Summary of the Invention

[0004] In response to the above situation, the present invention provides a shield tunnel convergence deformation reinforcement device. The reinforcement ring of the device can be equipped with multiple support rods to provide annular support for the tunnel. The multiple support rods can cause the rotating ring to rotate when the tunnel is dislocated, so that multiple groups of support rods can be fixed at the same time and the support rods can contact the top of the tunnel.

[0005] A shield tunnel convergence deformation reinforcement device includes a reinforcement ring, one side of the reinforcement ring is provided with an offset extrusion mechanism, the offset extrusion mechanism includes a No. 1 bladder, a No. 2 bladder and an internal channel, the No. 1 bladder is integrally arranged on one side of the reinforcement ring, the No. 2 bladder is integrally arranged on the other side of the reinforcement ring, an internal channel is provided between the No. 1 bladder and the No. 2 bladder, the internal channel is provided inside the reinforcement ring, a rotating ring is rotatably provided on the inner side of the reinforcement ring, one side of the reinforcement ring is provided with a casting support mechanism, the casting support mechanism includes a support rod and a support cylinder, the support rod is slidably provided on one side of the reinforcement ring, the support cylinder is integrally provided on the inner side of the reinforcement ring, and a support cylinder is sealed and slidably provided on one side of the support rod.

[0006] The beneficial effects of the above technical solution are:

[0007] The reinforcement ring provided in this scheme can be provided with multiple support rods, which can provide annular support for the tunnel. The multiple support rods can cause the rotating ring to rotate when the tunnel is dislocated, so that multiple groups of support rods can be fixed at the same time, so that the support rods can contact the top of the tunnel. During the pouring of concrete, the support rods can contact the tunnel and can act as steel bars. Under the action of the No. 1 or No. 2 bladder, the poured concrete can be shaped. The rotation of the rotating ring can also automatically open the pouring hole and wait for pouring. It can also determine whether pouring is needed by detecting the internal pressure of the No. 1 or No. 2 bladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0009] Figure 2 This is a schematic diagram of a tunnel reinforced with a reinforcement ring according to the present invention;

[0010] Figure 3 This is a schematic diagram of the reinforcement ring of the present invention;

[0011] Figure 4 For the present invention Figure 1 Schematic diagram of AA cutting;

[0012] Figure 5 For the present invention Figure 1 Schematic diagram of the middle BB cut;

[0013] Figure 6 For the present invention Figure 1 Schematic diagram of CC cutting;

[0014] Figure 7 This is a schematic diagram of cutting the top of the support rod of the present invention;

[0015] Figure 8 Schematic diagram of the rotating ring of the present invention.

[0016] In the figure: 1. Reinforcement ring; 2. No. 1 capsule; 3. No. 2 capsule; 4. Internal channel; 5. Rotating ring; 6. Support rod; 7. Support cylinder; 8. Extension rod; 9. Oblique groove; 10. Release ring; 11. Buffer groove; 12. Positioning groove; 13. Positioning rod; 14. Closing valve; 15. Vertical plate; 16. Lifting block; 17. Horizontal bar; 18. Translation block; 19. Support rod; 20. Tunnel; 21. Hydraulic rod; 22. Fixed block; 23. One-way block; 24. One-way spring; 25. Arc sheet; 26. Casting hole; 27. Shut-off valve; 28. Shrapnel; 29. ​​Bump; 30. Insert block; 31. Insert spring; 32. Small cylinder. DETAILED DESCRIPTION

[0017] The above and other technical contents, features and effects of the present invention are described below with reference to the attached Figures 1 to 8It can be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0018] This embodiment provides a shield tunnel convergence deformation reinforcement device, as shown in the attached Figure 1-8 As shown in the instruction manual, Figure 1 This is the main view of this solution. The main view has three cutting planes, namely AA, BB, and CC. The three cutting planes are respectively provided with corresponding cutting drawings. Figure 5 、 6 and 7, instructions attached Figure 2 The fixing position of the reinforcement ring 1 is shown. The fixing position of the reinforcement ring 1 is set at the interface of the two tunnels 20. Figure 3 It is a three-dimensional schematic diagram of the reinforcement ring 1, and the instruction manual is attached. Figure 7 The top of the support rod 6 is cut to facilitate observation of the internal shape of the support rod 6. Figure 8 It mainly shows the details of the rotating ring 5. The reinforcement ring 1 has a No. 1 bag 2 and a No. 2 bag 3. There is no substantial difference between the No. 1 bag 2 and the No. 2 bag 3. The structures of the two are the same and they are distinguished only by the name. The two air bags are connected through an internal channel 4. When the tunnel 20 is not offset, the shapes of the No. 1 bag 2 and the No. 2 bag 3 are roughly the same (because they are all attached to the tunnel 20). However, since the tunnel 20 is deformed, that is, it is offset at the original connection position, one of the air bags will inevitably be squeezed during the offset process, and the gas will be squeezed into the other air bag, and this air bag will expand. A slidable support rod 6 is provided inside the No. 1 bag 2 or the No. 2 bag 3. The support rod 6 is attached to the instruction manual. Figure 1-8The number of support rods 6 is three, and in fact the number of support rods 6 is several, and the reinforcement ring 1 is annularly arranged, so that the offset position will have a corresponding or nearby support rod 6, so that the offset position will squeeze the support rod 6 so that the support rod 6 moves toward the center of the reinforcement ring 1, and the support rod 6 is slidably arranged on the support tube 7, and the support tube 7 and the support rod 6 are sealed and slidable. A compression space is formed between the support tube 7 and the support rod 6, and there is gas inside this space, and the gas cannot be discharged (although an extension rod is provided on one side of the support rod 6 8, but the extension rod 8 is also sealed with the support tube 7, and the support rod 6 and the No. 1 bag 2 or the No. 2 bag 3 are also sealed and slidable). In the initial stage of this solution, this space is compressed, that is, the support rod 6 will automatically move toward the circular outer side of the reinforcement ring 1 without external force, that is, this compression interval acts as a spring so that the support rod 6 can move toward the outside so that the support rod 6 contacts the surface of the tunnel 20 to form a support. When the tunnel 20 deviates, it will become more and more difficult to squeeze the support rod 6 because the gas in the space cannot be eliminated, which can cope with the deviation. The tunnel 20 deviates away from the support rod 6, and the support rod 6 will control the space gas to contact the tunnel 20. The present solution has a pouring hole 26. When the deformation reaches a certain degree, the pouring hole 26 will automatically open. At this time, the operator can pour concrete to make the concrete fixed (the effect of the deformation of the No. 1 bladder 2 and the No. 2 bladder 3). Several support rods 6 contact and support the tunnel 20, which can act as supporting components and as reinforcement bars between the concrete. It can perfectly adapt to the reinforcement of the concrete and can also support and reinforce it at the offset position. The present solution is provided with The rotating ring 5 can be driven by one of the largest extruded support rods 6. Here, a maximum is introduced. Because the offset position is variable, it can be offset at any position, which leads to inconsistent extrusion lengths of several support rods 6. In order to enable multiple groups of support rods 6 to identify whether the offset position of the tunnel 20 has reached the situation where pouring is required, an oblique groove 9 is set. The oblique groove 9 is opened on the upper and lower sides of the rotating ring 5. The oblique groove 9 is an oblique notch, but this notch has an entry end, and the position of this entry end just corresponds to the other end of the extension rod 8, as shown in the attached manual. Figure 8As shown, since a buffer groove 11 is correspondingly provided on one side of the oblique groove 9, the buffer groove 11 is an annular groove, and this groove generally provides the support rod 6 with a buffer space (that is, it generally does not enter the oblique groove 9). It will not enter the oblique groove 9 until it is squeezed to a certain position, which also means that it will enter the oblique groove 9 only after being squeezed to a certain depth. When entering the oblique groove 9, the support rod 6 is restricted to only slide laterally, resulting in the support rod 6 entering the oblique groove 9. The rotating ring 5 is rotatably arranged on the reinforcement ring 1. In order to ensure that the rotating ring 5 can rotate normally, a corresponding frame is provided on the inner side of the reinforcement ring 1 so that the rotating ring 5 can rotate stably. Lubricating oil can be provided between the two to ensure that the rotating ring 5 can rotate. However, when the rotating ring 5 rotates, the extension rods 8 of other groups will not be able to enter the oblique groove 9. In this way, the support rod 6 with the maximum extrusion will drive the rotating ring 5 to rotate, and Once the rotating ring 5 is rotated, the entrance to one side of the oblique groove 9 will be offset, resulting in the inability of the support rods 6 of other groups to enter the oblique groove 9, that is, the support rod 6 with the maximum extrusion distance drives the rotating ring 5 to rotate, without limiting which support rod 6 drives the rotating ring 5 to rotate. Several support rods 6 can drive the rotating ring 5 to rotate, so that the rotating ring 5 can be driven by one of the support rods 6 with the maximum extrusion movement distance. In this way, the degree of offset can be judged. The rotation of the rotating ring 5 of this scheme can drive multiple groups of mechanisms to operate, and the rotation of the rotating ring 5 can drive multiple groups of positioning rods 13 to move, because the positioning rod 13 is slidably set on the small cylinder, and the small cylinder is also fixedly set on the reinforcement ring 1. The interior of the small cylinder is also sealed and slidably provided with a positioning rod 13. There is also a compression space between the positioning rod 13 and the small cylinder, and the gas in this space is also compressed, which is the same as the principle of the support rod 6 and the support cylinder 7, as shown in the attached manual. Figure 5 As described above, driven by the compression space, the positioning rod 13 will move downward (numbered) and will be inserted into the positioning groove 12. In the figure, the small tube is in a suspended state, but it is not actually fixed on the reinforcement ring 1, so that the positioning rod 13 can be inserted into the positioning groove 12 for fixation, which actually acts as a spring. The top of the positioning rod 13 is overlapped on the release ring 10. The release ring 10 is a ring with an L-shaped cross section, which can just overlap the positioning rod 13. As shown in the attached manual Figure 8 As shown, one side of the release ring 10 has a notch. When the release ring 10 is rotated to the notch, the positioning rod 13 cannot be overlapped. The positioning rod 13 is inserted into the positioning groove 12 under the drive of the compression space to fix the support rod 6 so that the support rod 6 can fix the tunnel 20. After that, concrete pouring is required. For the first insertion into the positioning groove 12, the support rod 6 only needs to be moved a short distance to be reinserted.

[0019] The rotation of the rotating ring 5 can also drive the closing valve 14 to rotate. The closing valve 14 is as shown in the attached manual. Figure 5 As shown, at this time, the pouring hole 26 cannot flow, and when it reaches a certain position, the closing valve 14 will be opened, because the rotation of the rotating ring 5 can make the vertical plate 15 move upward, and the vertical plate 15 is slidably arranged on one side of the reinforcement ring 1, and slides vertically upward, and the bottom of the vertical plate 15 is just above the release ring 10, and the top of the release ring 10 is set on the lifting block 16, and the lifting block 16 is an inclined surface, so the rotation of the rotating ring 5 can make the lifting block 16 drive the vertical plate 15 to move upward, and the upward movement of the vertical plate 15 can make the closing valve 14 rotate, because the top of the vertical plate 15 It has a transverse notch, the transverse notch surface overlaps one side of the closing valve 14, one side of the closing valve 14 is extended and obliquely overlapped above the vertical plate 15, so that the vertical plate 15 moves upward to rotate the closing valve 14, which opens the closing valve 14. A pressure sensor is set inside the No. 1 capsule 2 to detect whether the closing valve 14 is open. When the closing valve 14 is opened, the pressure sensor notifies the maintenance personnel to cast the No. 1 capsule 2 and the No. 2 capsule 3. The rotation of the rotating ring 5 can also make the shut-off valve 27 block the internal channel 4, because the internal channel 4 is connected to the No. 1 capsule 2 and the No. 2 capsule 3. When casting is required, The position at that time ensures that the No. 1 bag 2 and the No. 2 bag 3 are filled completely, so the internal channel 4 is closed before pouring. Because a protrusion 29 is provided above the rotating ring 5, and the stop valve 27 is slidingly provided on one side of the sealing channel, the stop valve 27 is moved toward the internal channel 4 under the action of the protrusion 29, and spring pieces 28 are provided on both sides of the stop valve 27. This spring piece 28 is tilted toward both sides and will be deformed and reset after being squeezed. Therefore, when the stop valve 27 is inserted into the internal channel 4, the spring piece 28 will be squeezed by the box, and the spring piece 28 will be reset after entering, so as to achieve the effect of preventing it from falling off. The shut-off valve 27 will block the internal channel 4 and cannot be detached. Finally, the role of the hydraulic rod 21 of this solution is introduced. The reinforcement ring 1 of this solution is fixed to the tunnel 20 through the holes on both sides of the bottom, and the hydraulic rod 21 is also fixed to the tunnel 20. Whether it is the tunnel 20 where the hydraulic rod 21 is installed or the adjacent tunnel 20, it does not affect the use of the reinforcement ring 1. The position of the hydraulic rod 21 is fixed. When it is not deformed, it does not support the support rod 19. The support rod 19 is not a rod, but two rods. The two rods form a group of telescopic rods. This group of telescopic rods is the support rod 19 introduced in this solution, as shown in the attached manual. Figure 1 、 2As shown in FIG3 , the support rod 19 has a telescopic distance, and the present solution requires the support rod 19 to be vertical. During the vertical process, the translation block 18 is translated and slid, so the support rod 19 will shrink. The present solution is limited to the support rod 19 being unable to shrink when the support rod 19 is vertical. This ensures that the support rod 19 can support the reinforcement ring 1 when it is vertical. The translation block 18 of the present solution is driven by the arc piece 25, because the arc piece 25 is arranged at the inner arc of the rotating ring 5, as shown in the attached manual. Figure 7 and 8 As shown, at this time, the rotation of the rotating ring 5 can control the lateral movement of the translation block 18. The movement of the translation block 18 drives the support rod 19 to be horizontal, and at the same time, the fixed block 22 fixes the translation block 18. Because one side of the translation block 18 is set with an inclined surface, which corresponds to the shape of the one-way block 23, the one-way block 23 can be squeezed by the translation block 18, and then stuck on one side of the translation block 18, and the other side enters the fixed block 22 to be fixed. The one-way spring 24 is responsible for resetting the one-way block 23, and the fixed block 22 is fixed by the hydraulic rod 21, so it is equivalent to the hydraulic rod 21 supporting the support rod 19, and the support rod 19 supports the reinforcement ring 1 to achieve the effect of supporting the reinforcement ring 1. At one end of the translation block 18, the support rod 19 is correspondingly provided with a socket and an insert block 30 (the socket is on the support rod 19 on the side of the label 30, as shown in the attached manual Figure 7As shown, the insertion spring 31 is squeezed at this time), the support rod 19 can be inserted when it is horizontal to complete the positioning, and the bottom of the support rod 19 can be welded to the tunnel 20 when it is vertical. Finally, it should be noted that when the deviation groove is rotated to a specific position, the vertical support rod, the positioning rod insertion, the shut-off valve shut-off and the closing valve opening effects introduced in this solution correspond to each other at the same time. For example, the arc piece drives the support rod to be vertical. It is only necessary to set the angle and slope of the arc piece or the corresponding gear combination (the gear combination is set when the angle is not enough. In order to cooperate with the rotation of the arc piece, the gear combination is added to enable the support rod to reach a specific position. These are achieved with the help of the gear transmission ratio. Under normal circumstances, the angle and slope corresponding to the arc piece can also be set to realize the vertical support rod to achieve the corresponding oblique direction. The effect of the groove rotation angle is obtained by the above method, comprising a reinforcement ring 1, one side of the reinforcement ring 1 is provided with an offset extrusion mechanism, the offset extrusion mechanism comprises a No. 1 capsule 2, a No. 2 capsule 3 and an internal channel 4, the No. 1 capsule 2 is integrally arranged on one side of the reinforcement ring 1, the No. 2 capsule 3 is integrally arranged on the other side of the reinforcement ring 1, an internal channel 4 is provided between the No. 1 capsule 2 and the No. 2 capsule 3, the internal channel 4 is provided inside the reinforcement ring 1, a rotating ring 5 is provided on the inner side of the reinforcement ring 1 for rotation, a casting support mechanism is provided on one side of the reinforcement ring 1, the casting support mechanism comprises a support rod 6 and a support tube 7, the support rod 6 is slidingly arranged on one side of the reinforcement ring 1, the support tube 7 is integrally arranged on the inner side of the reinforcement ring 1, one side of the support rod 6 is sealed and slidably provided with a support tube 7, and one side of the support rod 6 is integrally provided with an extension rod 8, which rotates The upper and lower sides of the rotating ring 5 are provided with oblique grooves 9, and a release ring 10 is integrally provided on the edge of the rotating ring 5. A buffer groove 11 is provided between the release ring 10 and the oblique groove 9. One side of the extension rod 8 is overlapped and set on the buffer groove 11. A positioning mechanism is provided on one side of the support rod 6. The positioning mechanism includes a positioning groove 12 and a positioning rod 13. The positioning groove 12 is provided on the lower surface of the support rod 6. A small cylinder 32 is integrally provided on the inner side wall of the reinforcement ring 1. The surface of the small cylinder 32 is slidingly provided with a positioning rod 13. The bottom of the positioning rod 13 is overlapped and set on the release ring 10. The positioning rod 13 can be moved and plugged into the positioning groove 12. A stop valve 27 is slidingly provided on the surface of the internal channel 4. Shrapnel 28 is provided on both sides of the stop valve 27. A bump 2 is provided on the upper surface of the rotating ring 5. 9. A pouring hole 26 is provided on one side of the reinforcement ring. A channel closing mechanism is provided inside the pouring hole 26. The channel closing mechanism includes a closing valve 14, a vertical plate 15 and a lifting block 16. The closing valve 14 is rotatably provided inside the pouring hole 26. The lifting block 16 is integrally provided on the upper surface of the release ring 10. The vertical plate 15 is slidably provided on one side of the reinforcement ring 1. The top of the vertical plate 15 is overlapped with the closing valve 14. A horizontal bar 17 is integrally provided on both sides of the reinforcement ring 1. A translation block 18 is slidably provided on the surface of the horizontal bar 17. A support rod 19 is rotatably provided on one side of the translation block 18. An insert block 30 is provided on one side of the support rod 19. An insertion spring 31 is provided on one side of the insert block 30. The reinforcement ring 1 is rotatably provided on the other side of the support rod 19. A tunnel 20 is provided on the top of the No. 1 capsule 2.A hydraulic rod 21 is installed on the inner wall of the tunnel 20. A fixed block 22 is installed on the protruding end of the hydraulic rod 21. A one-way block 23 is slidably installed on one side of the fixed block 22. A one-way spring 24 is installed on one side of the one-way block 23. An arc-shaped piece 25 is integrally provided on the inner wall of the rotating ring 5.

[0020] The above description is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the scope of protection of the present invention.

Claims

1. A shield tunnel convergence deformation reinforcement device, comprising a reinforcement ring (1), characterized in that: A displacement extrusion mechanism is provided on one side of the reinforcement ring (1), and the displacement extrusion mechanism includes a No. 1 capsule (2), a No. 2 capsule (3) and an internal channel (4). The No. 1 capsule (2) is integrally provided on one side of the reinforcement ring (1), and the No. 2 capsule (3) is integrally provided on the other side of the reinforcement ring (1). An internal channel (4) is provided between the No. 1 capsule (2) and the No. 2 capsule (3), and the internal channel (4) is provided inside the reinforcement ring (1). A rotating ring (5) is rotatably provided on the inner side of the reinforcement ring (1). A pouring support mechanism is provided on one side of the reinforcement ring (1), and the pouring support mechanism includes a support rod (6) and a support cylinder (7). The support rod (6) is slidably provided on one side of the reinforcement ring (1), and the support cylinder (7) is integrally provided on the inner side of the reinforcement ring (1). A support cylinder (7) is sealed and slidably provided on one side of the support rod (6); a slidable support rod (6) is provided inside both the No. 1 capsule (2) and the No. 2 capsule (3); An extension rod (8) is integrally provided on one side of the support rod (6), oblique grooves (9) are provided on the upper and lower sides of the rotating ring (5), a release ring (10) is integrally provided on the edge of the rotating ring (5), a buffer groove (11) is provided between the release ring (10) and the oblique groove (9), and one side of the extension rod (8) is overlapped and provided on the buffer groove (11); A positioning mechanism is provided on one side of the support rod (6), and the positioning mechanism includes a positioning groove (12) and a positioning rod (13). The positioning groove (12) is provided on the lower surface of the support rod (6). A small cylinder (32) is integrally provided on the inner side wall of the reinforcement ring (1). The positioning rod (13) is slidably provided on the surface of the small cylinder (32). The bottom of the positioning rod (13) is overlapped and provided on the release ring (10). The positioning rod (13) is movably plugged into the positioning groove (12).

2. A shield tunnel convergence deformation reinforcement device according to claim 1, characterized in that: A stop valve (27) is slidably provided on the surface of the internal channel (4), spring pieces (28) are provided on both sides of the stop valve (27), and a bump (29) is provided on the upper surface of the rotating ring (5).

3. The shield tunnel convergence deformation reinforcement device according to claim 1, characterized in that: A casting hole (26) is provided on one side of the reinforcement ring (1), and a channel closing mechanism is provided inside the casting hole (26). The channel closing mechanism includes a closing valve (14), a vertical plate (15) and a lifting block (16). The closing valve (14) is rotatably provided inside the casting hole (26), and the upper surface of the release ring (10) is integrally provided with a lifting block (16).

4. A shield tunnel convergence deformation reinforcement device according to claim 3, characterized in that: The vertical plate (15) is slidably arranged on one side of the reinforcement ring (1), and a closing valve (14) is overlapped on the top of the vertical plate (15).

5. The shield tunnel convergence deformation reinforcement device according to claim 1, characterized in that: The reinforcement ring (1) is provided with a horizontal bar (17) on both sides thereof, a translation block (18) is provided on the surface of the horizontal bar (17) for sliding, a support rod (19) is provided on one side of the translation block (18) for rotation, an insertion block (30) is provided on one side of the support rod (19), and an insertion spring (31) is provided on one side of the insertion block (30).

6. The shield tunnel convergence deformation reinforcement device according to claim 5, characterized in that: A reinforcement ring (1) is rotatably provided on the other side of the support rod (19), a tunnel (20) is provided on the top of the No. 1 bag (2), and a hydraulic rod (21) is installed on the inner wall of the tunnel (20).

7. The shield tunnel convergence deformation reinforcement device according to claim 6, characterized in that: A fixed block (22) is installed at the extended end of the hydraulic rod (21), a one-way block (23) is slidably provided on one side of the fixed block (22), and a one-way spring (24) is provided on one side of the one-way block (23).

8. The shield tunnel convergence deformation reinforcement device according to claim 1, characterized in that: The inner side wall of the rotating ring (5) is integrally provided with an arc-shaped piece (25).

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