Shield butt joint shield body reinforcing structure

Abstract

The utility model discloses a shield butt joint shield body reinforcing structure which comprises a plurality of shield shells, reinforcing assemblies are arranged among the shield shells, an auxiliary assembly is arranged on a cutterhead ring beam, and through the reinforcing assemblies arranged on the shield shells, complex stress generated during shield butt joint can be dispersed to a plurality of connecting points, so that the shield butt joint effect is improved. According to the shield tunneling machine, stress is prevented from being excessively concentrated in a local area, stress borne by a single connecting point is reduced, external complex geological pressure and internal construction load are better resisted, the stability of the shield tunneling machine in the butt joint process is improved, the maintenance cost and the construction risk are reduced, meanwhile, an auxiliary assembly arranged on the cutter head ring beam can effectively assist in supporting, and the construction efficiency is improved. The stability and the bearing capacity of the cutterhead ring beam under high-strength stress are enhanced, the pressure can be evenly dispersed to a shield shell and other reinforcing structures, the burden of the cutterhead ring beam is relieved, and good stability and deformation resistance are kept.

Description

Technical Field

[0001] This utility model relates to the field of reinforcement structure technology, specifically to a shield body reinforcement structure for shield tunneling. Background Technology

[0002] The shield reinforcement structure for shield docking is usually designed to ensure the stability and safety of the shield during shield tunnel construction, especially when two shield machines are docking. The design and application of this reinforcement structure is crucial for ensuring the smooth progress of the project and the safety of personnel.

[0003] However, complex stresses are generated during shield docking, and the existing reinforcement structure cannot effectively disperse these stresses. Excessive stress concentration in localized areas can easily lead to deformation or even damage to the shield shell and connecting components, shortening the service life of the tunnel boring machine, increasing maintenance costs and construction risks. The cutterhead ring beam lacks an effective auxiliary support structure, making it difficult to meet the requirements of high-strength loads and posing a potential risk of deformation or breakage.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a shield reinforcement structure for shield docking, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A shield-to-shield reinforcement structure includes multiple shield shells, with reinforcement components arranged between the shield shells. Each reinforcement component includes mounting ring plates fixedly installed on the inner walls of multiple shield shells. Multiple reinforcement screws are threaded onto the mounting ring plates, and a connecting cylinder is threaded onto one end of each reinforcement screw. A cutterhead ring beam is fixed at one end of each of the multiple shield shells at a relatively opposite position, and a water-stop steel plate is fixed on one side of the cutterhead ring beam.

[0008] Furthermore, in order to better assist in reinforcing the shield docking point, auxiliary components are installed on the cutterhead ring beam. The auxiliary components include several inner steel plates installed on one side of the cutterhead ring beam. Multiple fixing screws are threaded onto the inner steel plates, and one end of the fixing screws is threaded onto the cutterhead ring beam. Multiple shield shells are connected to the mounting ring plate with equally distributed longitudinal ribs. One side of the longitudinal ribs is fixedly connected to one side of a portion of the inner steel plates.

[0009] Furthermore, in order to better reinforce the interior of the shield, the shield shell is fixedly equipped with equally spaced reinforcing longitudinal ribs. Each reinforcing longitudinal rib is fixedly connected to a mud-water chamber partition, a bubble chamber partition, and a jack support plate. One side of the mud-water chamber partition is fixedly connected to one side of the longitudinal rib.

[0010] Furthermore, in order to better reinforce the interior of the shield, a first connecting plate that is evenly distributed is fixedly connected between the mud and water compartment partition and the bubble compartment partition, and a second connecting plate that is evenly distributed is fixedly connected between the bubble compartment partition and the jack support plate.

[0011] Furthermore, reinforcing ring rib one and reinforcing ring rib two are also fixedly connected to the reinforcing longitudinal rib.

[0012] Furthermore, anti-reverse steel plates are fixedly installed on one side of the inner wall of the shield, with one end of the anti-reverse steel plates close to the reinforcing longitudinal ribs.

[0013] Furthermore, a filling plate is fixed to one side of the reinforcing longitudinal ribs, the longitudinal ribs, and the mounting ring plate, and to one side of the inner wall of the shield.

[0014] The beneficial effects of this utility model are as follows: By installing reinforcing components on the shield shell, the complex stress generated during shield docking can be distributed to multiple connection points, avoiding excessive stress concentration in local areas and reducing the stress borne by individual connection points. This significantly reduces the risk of deformation of the shield shell and connecting components, better resists complex external geological pressure and internal construction loads, improves the stability of the tunnel boring machine during docking, and reduces maintenance costs and construction risks. At the same time, the auxiliary components installed on the cutterhead ring beam can effectively assist in support, enhance the stability and load-bearing capacity of the cutterhead ring beam under high-intensity stress, and can evenly distribute these pressures to the shield shell and other reinforcing structures, reducing the burden on the cutterhead ring beam itself, reducing the risk of deformation or breakage, and maintaining good stability and deformation resistance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a shield reinforcement structure for shield docking according to an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a shield-to-shield reinforcement structure according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the filling plate structure of a shield docking reinforcement structure according to an embodiment of the present utility model;

[0019] Figure 4 yes Figure 2Enlarged structural diagram at point a;

[0020] Figure 5 yes Figure 2 Enlarged structural diagram at point b;

[0021] Figure 6 yes Figure 2 Enlarged structural diagram at point c.

[0022] In the picture:

[0023] 1. Shield shell; 2. Reinforcing components; 201. Mounting ring plate; 202. Reinforcing screws; 203. Connecting cylinder; 204. Cutter head ring beam; 205. Water-stop steel plate; 3. Auxiliary components; 301. Inner steel plate; 302. Fixing screws; 303. Longitudinal rib; 4. Reinforcing longitudinal rib; 5. Mud and water chamber partition; 6. Bubble chamber partition; 7. Jack top support plate; 8. Connecting plate one; 9. Connecting plate two; 10. Reinforcing ring rib one; 11. Reinforcing ring rib two; 12. Anti-reverse steel plate; 13. Filling plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] like Figures 1-6 As shown, a shield-to-shield reinforcement structure according to an embodiment of the present utility model includes two shield shells 1, one being a lead shield and the other a follow shield. A reinforcement component 2 is provided between the multiple shield shells 1. The reinforcement component 2 includes multiple mounting ring plates 201 fixedly installed on the inner wall of the shield shells 1. Multiple reinforcement screws 202 are threadedly connected to the mounting ring plates 201. A connecting cylinder 203 is threadedly connected to one end of each reinforcement screw 202. A cutterhead ring beam 204 is fixed at one end of each of the two shield shells 1 at a relative position. The cutterhead ring beam of the lead shield is 500×200mm, and the cutterhead ring beam of the follow shield is 400×200mm. A water-stop steel plate 205 is fixed on one side of the cutterhead ring beam 204.

[0027] The shield shell 1 is fixedly provided with equidistantly distributed reinforcing longitudinal ribs 4. The reinforcing longitudinal ribs 4 are respectively fixedly connected to the mud and water chamber partition 5, the air chamber partition 6, and the jack support plate 7. The thickness of the mud and water chamber partition 5, the air chamber partition 6, and the shield shell 1 is 80mm, and the thickness of the jack support plate 7 is 100mm. One side of the mud and water chamber partition 5 is fixedly connected to one side of the longitudinal rib 303. The mud and water chamber partition 5 and the air chamber partition 6 are fixedly connected with equidistantly distributed connecting plates 1 8. The thickness of connecting plates 1 8 is 80mm, and the height of connecting plates 1 8 is 600mm. The air chamber partition 6 and the jack support plate 7 are fixedly connected with equidistantly distributed connecting plates 2 9. The thickness of connecting plates 2 9 is 80mm, and the height of connecting plates 2 9 is 191mm.

[0028] The reinforcing longitudinal rib 4 is also fixedly connected with the first reinforcing ring rib 10 and the second reinforcing ring rib 11. The inner wall of the shield shell 1 is fixedly provided with equally spaced anti-reverse steel plates 12. The number of anti-reverse steel plates 12 in actual use is 196. The thickness of the anti-reverse steel plates 12 is 30mm. One end of the anti-reverse steel plates 12 is close to the reinforcing longitudinal rib 4.

[0029] Example 2:

[0030] like Figures 1-6 As shown, according to an embodiment of the present invention, a shield-connecting shield reinforcement structure is provided on the cutterhead ring beam 204. The auxiliary component 3 includes a plurality of inner steel plates 301 provided on one side of the cutterhead ring beam 204. A plurality of fixing screws 302 are threadedly connected to the inner steel plates 301. One end of the fixing screws 302 is threadedly connected to the cutterhead ring beam 204. The two shield shells 1 and the mounting ring plate 201 are connected with longitudinal ribs 303 distributed at equal intervals. One side of the longitudinal ribs 303 is fixedly connected to one side of a portion of the inner steel plates 301.

[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0032] In summary, with the help of the above-mentioned technical solution of this utility model, when the shield docking is performed, the complex stress generated is distributed to multiple connection points by the reinforcing screws 202 that are threaded and thermally connected to the mounting ring plate 201 fixed to the inner wall of the shield shell 1. This avoids stress concentration in a local area, reduces the stress borne by a single connection point, and thus reduces the risk of deformation of the shield shell 1 and the connecting components. One end of the reinforcing screw 202 is threadedly connected to a connecting cylinder 203. The connecting cylinder 203 acts as a medium for stress transmission, further dispersing and transmitting stress, making the connection between the shield shells 1 more stable.

[0033] By setting an inner steel plate 301 on the cutter head ring beam 204 and fixing screws 302 threadedly connected to the cutter head ring beam 204, the stability and load-bearing capacity of the cutter head ring beam 204 under high-intensity stress can be enhanced. The longitudinal ribs 303 connected to the shield shell 1, the mounting ring plate 201 and the inner steel plate 301 can evenly distribute the pressure on the cutter head ring beam 204 to the shield shell 1 and other reinforcement structures, reducing the burden on the cutter head ring beam 204 itself.

[0034] Meanwhile, the reinforcing longitudinal ribs 4, mud and water chamber partitions 5, air chamber partitions 6, and jack support plates 7 of the shield shell 1 together constitute the internal support structure of the shield body, enhancing the integrity and deformation resistance of the shield body. The connecting plate 8 connecting the mud and water chamber partitions 5 and air chamber partitions 6 and the connecting plate 9 connecting the air chamber partitions 6 and jack support plates 7 can further strengthen the connection strength of the internal structure, making the stress distribution inside the shield body more uniform.

[0035] The reinforcing ring ribs 10 and 11 connected by the reinforcing longitudinal rib 4 form a more stable frame structure, improving the shield's resistance to deformation and ensuring the stability of the tunnel boring machine during docking. Meanwhile, the anti-reverse steel plate 12 installed on one side of the inner wall of the shield shell 1 can effectively prevent the shield shell 1 from local deformation under stress during the docking process, maintaining the shape and size stability of the shield shell 1. The filling plate 13 installed on one side of the reinforcing longitudinal rib 4, longitudinal rib 303, and mounting ring plate 201 and the inner wall of the shield shell 1 not only plays a sealing role to prevent mud and water from entering the shield, but also further strengthens the tightness of the internal structure of the shield and improves the overall reinforcement effect.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shield docking shield body reinforcement structure, characterized by, The utility model provides a shield shell, including a plurality of shield shells (1), be provided with reinforcing assembly (2) between a plurality of shield shells (1), reinforcing assembly (2) includes the fixed installation ring plate (201) of a plurality of shield shells (1) inner wall, a plurality of reinforcing screws (202) are threadedly connected on installation ring plate (201), the one end of reinforcing screw (202) is threadedly connected with connecting cylinder (203), the one end of a plurality of shield shells (1) is opposite position fixed with cutter head ring beam (204), the one side of cutter head ring beam (204) is fixed with water stop steel sheet (205).

2. The butt joint shield body reinforcing structure according to claim 1, wherein Cutter head ring beam (204) is provided with auxiliary assembly (3), auxiliary assembly (3) includes the a plurality of inboard steel sheets (301) of the one side of cutter head ring beam (204), a plurality of fixed screws (302) are threadedly connected on inboard steel sheet (301), the one end of fixed screw (302) is threadedly connected with cutter head ring beam (204), a plurality of shield shells (1) are connected with the equidistance distribution of installation ring plate (201) longitudinal rib (303), and one side of longitudinal rib (303) is fixedly connected with the one side of part inboard steel sheet (301).

3. The structure according to claim 2, wherein The fixed setting of shield shell (1) is equidistance distribution reinforcing longitudinal rib (4), reinforcing longitudinal rib (4) is fixedly connected with slurry tank baffle (5), bubble tank baffle (6), jack jacking plate (7) respectively, and one side of slurry tank baffle (5) is fixedly connected with the one side of longitudinal rib (303).

4. The butt joint shield body reinforcing structure according to claim 3, wherein Slurry tank baffle (5) and bubble tank baffle (6) are fixedly connected with the equidistance distribution of connecting plate one (8) between bubble tank baffle (6) and jack jacking plate (7).

5. The butt joint shield body reinforcing structure according to claim 4, wherein Reinforcing longitudinal rib (4) is still fixedly connected with reinforcing ring rib one (10) and reinforcing ring rib two (11).

6. The butt joint shield body reinforcing structure according to claim 5, wherein The fixed setting of the inner wall one side of shield shell (1) is equidistance distribution water stop steel sheet (12), and one end of water stop steel sheet (12) is close to reinforcing longitudinal rib (4).

7. The butt joint shield body reinforcing structure according to claim 6, wherein The one side of reinforcing longitudinal rib (4), longitudinal rib (303), installation ring plate (201) is fixed with filling plate (13) with the inner wall one side of shield shell (1).

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