High-strength impervious shield segment
By designing anti-seepage structure on the shield pipe sheet, including sealing grooves, feed holes, cylinders and other components, the problem of water seepage at the joints of the shield pipe sheet is solved, and a high-strength anti-seepage effect is achieved, ensuring the normal operation of the tunnel.
Patent Information
- Application Number
- CN202422335243.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In underground tunnels, water is prone to seep into the joints, resulting in water accumulation problems in the tunnel, affecting operation and maintenance, and even causing equipment damage and circuit failure.
A high-strength impermeability-resistant shield pipe sheet is designed, adopting an anti-seepage structure, including sealing grooves, feed holes, cylinders, springs, round rods, blocks and other components. Through the cooperation of these components, the injection and sealing of concrete is achieved to avoid water seepage.
It effectively improves the sealing of the shield pipe joints, prevents water infiltration, and ensures the high-strength anti-permeability effect of the shield pipe segment, thereby ensuring the normal operation of the tunnel.
Smart Images
Figure CN222991535U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shield segments, in particular to a high-strength and impermeable shield segment. Background Art
[0002] A shield segment is a precast concrete component used in shield tunnel construction. It is used to connect and support the tunnel wall excavated by the shield machine during underground tunneling. The shield segment is usually curved in shape and is designed to have a certain strength and stiffness to withstand the surrounding soil and water pressure.
[0003] The above and existing technologies have the following defects: In the underground tunnel, water easily seeps in from the joints of the shield segments, resulting in water accumulation in the tunnel. This not only affects operation and maintenance but may also cause equipment damage, circuit failures, etc., thus affecting the normal operation of the tunnel.
[0004] Therefore, a high-strength and impermeable shield segment is proposed. Summary of the Utility Model
[0005] The purpose of the utility model is to solve the defect that water easily seeps in from the joints of the shield segments, and a high-strength and impermeable shield segment is proposed.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A high-strength and impermeable shield segment, including a shield segment body. A plurality of installation grooves are formed on the surface of the shield segment body. A plurality of installation holes are formed on the surface of the shield segment body. The installation holes are communicated with the installation grooves. A through hole is formed on the surface of the shield segment body. Grooves are formed on both sides of the shield segment body. A water-swelling water-stop strip is installed on the inner wall of the groove. An anti-seepage structure is arranged on the surface of the shield segment body. The anti-seepage structure includes a sealing groove formed on the surface of the shield segment body. Two feeding holes are formed on the surface of the shield segment body. Both of the two feeding holes are communicated with the sealing groove. Two cylinders are fixedly connected to the surface of the shield segment body. Both of the two cylinders are communicated with the sealing groove. A spring is fixedly connected to the inner wall of the cylinder. A round rod is slidably inserted into the inner wall of the cylinder. One end of the round rod is fixedly connected to the spring. A plug is fixedly connected to the end of the round rod away from the cylinder. The size of the plug is adapted to the size of the feeding hole.
[0007] The effects achieved by the above components are as follows: By setting the anti-seepage structure, it is convenient to inject concrete into the sealing groove formed on the surface of the shield segment body, improving the tightness at the connection of the shield segment body, avoiding water seepage from the joints of the shield segment body, thus ensuring the high-strength anti-seepage effect of the shield segment body, and further ensuring the normal operation of the tunnel.
[0008] Preferably, a first ring is slidably connected to the inner wall of the feed hole. A plurality of connecting rods are fixedly connected to one side of the first ring close to the plug block, and the other end of the connecting rod away from the first ring is fixedly connected to a second ring.
[0009] The effects achieved by the above components are as follows: The conveying pipe will squeeze the first ring in the feed pipe. The first ring will drive the connecting rod to move by means of the squeezing force of the conveying pipe. The movement of the connecting rod will drive the second ring to move. After the second ring moves to a suitable position, it will squeeze the plug block, so as to facilitate the movement of the squeezed plug block, and further facilitate the injection of concrete from the feed hole into the sealing groove.
[0010] Preferably, two limiting grooves are formed in the inner wall of the feed hole. A limiting block is slidably connected to the inner walls of the two limiting grooves, and the limiting block is fixedly connected to the connecting rod.
[0011] The effects achieved by the above components are as follows: When the connecting rod moves, it will drive the limiting block to slide along the inner wall of the limiting groove. The limiting groove limits the moving distance of the limiting block, and further limits the moving distance of the connecting rod, avoiding the first ring and the second ring from coming out of the feed hole.
[0012] Preferably, a conical block is fixedly connected to one end of the cylinder away from the shield segment body.
[0013] The effects achieved by the above components are as follows: The cylinder on the shield segment body will drive the conical block to insert into the soil on the inner wall of the tunnel. The conical block facilitates the insertion of the cylinder into the soil.
[0014] Preferably, a sealing gasket is fixedly connected to one end of the cylinder close to the plug block, and the sealing gasket is made of rubber.
[0015] The effects achieved by the above components are as follows: When the round rod moves, it will slide along the surface of the sealing gasket. The sealing gasket improves the tightness between the round rod and the inner wall of the cylinder, thus preventing concrete from entering the cylinder.
[0016] Compared with the prior art, the advantages and positive effects of the present utility model are as follows
[0017] 1. In the present utility model, by setting the anti-seepage structure, the shield segment body is installed on the inner wall of the tunnel, and then the concrete conveying pipe is inserted into the feed hole. The plug block is moved. When the plug block moves to a suitable position, the plug block will come out of the feed hole, and the feed pipe will communicate with the inner wall of the sealing groove. At this time, the concrete will enter the feed hole from the conveying pipe, and then enter the sealing groove from the feed hole. When the sealing groove is filled with concrete, the tightness at the joint of the shield segment body is improved, preventing water from seeping in from the joint of the shield segment body, thus ensuring the high-strength anti-seepage effect of the shield segment body, and further ensuring the normal operation of the tunnel. Description of the Drawings
[0018] Figure 1 is the overall structural schematic diagram of the present utility model;
[0019] Figure 2 is the structural schematic diagram of another angle of the present utility model;
[0020] Figure 3 is the structural schematic diagram of the cylinder part of the present utility model;
[0021] Figure 4 is the disassembled structural schematic diagram of the cylinder part of the present utility model;
[0022] Figure 5 is the present utility model Figure 2 enlarged view of part A in;
[0023] Figure 6 is the structural schematic diagram of the connecting rod part of the present utility model.
[0024] Legend: 1. Shield segment body; 2. Installation groove; 3. Installation hole; 4. Anti-seepage structure; 401. Sealing groove; 402. Feed hole; 403. Cylinder; 404. Spring; 405. Round rod; 406. Plug; 407. First ring; 408. Connecting rod; 409. Second ring; 410. Limiting block; 411. Limiting groove; 412. Tapered block; 413. Sealing gasket; 5. Through hole; 6. Water-swellable water stop strip. Detailed implementation manners
[0025] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0026] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0027] Such as Figure 1As shown in the figure, the utility model provides a high-strength anti-seepage shield segment, which includes a shield segment body 1. A plurality of installation grooves 2 are formed on the surface of the shield segment body 1, and a plurality of installation holes 3 are formed on the surface of the shield segment body 1. The installation holes 3 communicate with the installation grooves 2. A through hole 5 is formed on the surface of the shield segment body 1. Grooves are formed on both sides of the shield segment body 1, and water-swellable water-stop strips 6 are installed on the inner walls of the grooves. An anti-seepage structure 4 is provided on the surface of the shield segment body 1. By setting the anti-seepage structure 4, it is convenient to inject concrete into the sealing groove 401 formed on the surface of the shield segment body 1, improve the tightness at the joint of the shield segment body 1, and avoid water seeping in from the joints of the shield segment body 1, thereby ensuring the high-strength anti-seepage effect of the shield segment body 1 and further ensuring the normal operation of the tunnel.
[0028] Next, specifically describe the specific setting and function of its anti-seepage structure 4.
[0029] As Figure 2 - Figure 6As shown in the figure, the anti-seepage structure 4 includes a sealing groove 401, which is opened on the surface of the shield segment body 1. Two feeding holes 402 are opened on the surface of the shield segment body 1, and both of the two feeding holes 402 communicate with the sealing groove 401. Two cylinders 403 are fixedly connected to the surface of the shield segment body 1, and both of the two cylinders 403 communicate with the sealing groove 401. A spring 404 is fixedly connected to the inner wall of the cylinder 403. A round rod 405 is slidably inserted into the inner wall of the cylinder 403, and the round rod 405 is fixedly connected to one end of the spring 404. A blocking block 406 is fixedly connected to the end of the round rod 405 away from the cylinder 403, and the size of the blocking block 406 is adapted to the size of the feeding hole 402. A first ring 407 is slidably connected to the inner wall of the feeding hole 402. A plurality of connecting rods 408 are fixedly connected to the side of the first ring 407 close to the blocking block 406. A second ring 409 is fixedly connected to the end of the connecting rod 408 away from the first ring 407. The conveying pipe will squeeze the first ring 407 in the feeding pipe. The first ring 407 will drive the connecting rod 408 to move by means of the force squeezed by the conveying pipe. The movement of the connecting rod 408 will drive the second ring 409 to move. After the second ring 409 moves to a suitable position, it will squeeze the blocking block 406, so as to facilitate squeezing the blocking block 406 to move, and further facilitate the injection of concrete from the feeding hole 402 into the sealing groove 401. Two limiting grooves 411 are opened on the inner wall of the feeding hole 402. A limiting block 410 is slidably connected to the inner walls of the two limiting grooves 411. The limiting block 410 is fixedly connected to the connecting rod 408. When the connecting rod 408 moves, it will drive the limiting block 410 to slide along the inner wall of the limiting groove 411. The limiting groove 411 limits the moving distance of the limiting block 410, and further limits the moving distance of the connecting rod 408, so as to prevent the first ring 407 and the second ring 409 from coming out of the feeding hole 402. A conical block 412 is fixedly connected to the end of the cylinder 403 away from the shield segment body 1. The cylinder 403 on the shield segment body 1 will drive the conical block 412 to insert into the soil of the tunnel inner wall, and the conical block 412 facilitates the insertion of the cylinder 403 into the soil. A sealing gasket 413 is fixedly connected to the end of the cylinder 403 close to the blocking block 406. The sealing gasket 413 is made of rubber. When the round rod 405 moves, it will slide along the surface of the sealing gasket 413. The sealing gasket 413 improves the tightness between the round rod 405 and the inner wall of the cylinder 403, so as to prevent concrete from entering the cylinder 403.
[0030] The overall working principle is as follows. When installing the shield segment body 1 in the tunnel, first install the shield segment body 1 on the inner wall of the tunnel. After the shield segment body 1 is installed on the inner wall of the tunnel, it is convenient to pour the gap between the shield segment body 1 and the inner wall of the tunnel through the through hole, thereby further enhancing the anti-seepage effect of the shield segment body 1. The cylinder 403 on the shield segment body 1 will drive the conical block 412 to insert into the soil on the inner wall of the tunnel. The conical block 412 serves to facilitate the insertion of the cylinder 403 into the soil. At this time, the sealing grooves 401 opened on the surfaces of adjacent shield segment bodies 1 will be connected. The shield segment body 1 will drive the water-swellable waterstop strip 6 to fit with the water-swellable waterstop strip 6 on the surface of the adjacent shield segment body 1. When the water-swellable waterstop strip 6 encounters water, it will expand, thereby further enhancing the anti-leakage effect at the joints of the shield segment body 1. Then, insert the concrete delivery pipe into the feed hole 402. The delivery pipe will squeeze the first ring 407 in the feed pipe. The first ring 407 will drive the connecting rod 408 to move by means of the force exerted by the delivery pipe. The movement of the connecting rod 408 will drive the second ring 409 to move. After the second ring 409 moves to an appropriate position, it will squeeze the plug 406. The plug 406 being squeezed will drive the round rod 405 to move away from the feed hole 402. The round rod 405 will slide in the cylinder 403 and squeeze the spring 404 during movement. The round rod 405 will slide along the surface of the gasket 413 during movement. The gasket 413 serves to improve the tightness between the round rod 405 and the inner wall of the cylinder 403, thereby preventing concrete from entering the cylinder 403. When the plug 406 moves to a suitable position, the plug 406 will disengage from the feed hole 402, and the feed pipe will communicate with the inner wall of the sealing groove 401. At this time, the concrete will enter the feed hole 402 from the delivery pipe and then enter the sealing groove 401 from the feed hole 402. After the sealing groove 401 is filled with concrete, pull out the delivery pipe from the feed hole 402. At this time, the round rod 405 will drive the plug 406 to move by means of the force of the spring 404 stretching. The plug 406 will move towards the feed hole 402 until one end of the plug 406 is inserted into the feed hole 402. During the movement of the plug 406, it will squeeze the second ring 409. The movement of the second ring 409 will squeeze the connecting rod 408. The connecting rod 408 will drive the limiting block 410 to slide along the inner wall of the limiting groove 411 during movement. The limiting groove 411 serves to limit the moving distance of the limiting block 410, thereby limiting the moving distance of the connecting rod 408 and preventing the first ring 407 and the second ring 409 from disengaging from the feed hole 402.
[0031] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A high-strength and anti-seepage shield segment, comprising a shield segment body (1), a plurality of mounting grooves (2) are provided on the surface of the shield segment body (1), a plurality of mounting holes (3) are provided on the surface of the shield segment body (1), the mounting holes (3) are connected to the mounting grooves (2), and an anti-seepage structure (4) is provided on the surface of the shield segment body (1), characterized in that: The anti-seepage structure (4) comprises a sealing groove (401), the sealing groove (401) is provided on the surface of the shield segment body (1), the surface of the shield segment body (1) is provided with two feed holes (402), both of the two feed holes (402) are connected to the sealing groove (401), the surface of the shield segment body (1) is fixedly connected with two cylinders (403), the surface of the shield segment body (1) is provided with a through hole (5), and both sides of the shield segment body (1) are provided with grooves, and the grooves are provided with a plurality of holes. The inner wall is provided with a water-swelling water stop strip (6), the two cylinders (403) are both connected to the sealing groove (401), the inner wall of the cylinder (403) is fixedly connected with a spring (404), the inner wall of the cylinder (403) is slidably inserted with a round rod (405), the round rod (405) is fixedly connected to one end of the spring (404), and the end of the round rod (405) away from the cylinder (403) is fixedly connected with a blocking block (406), and the size of the blocking block (406) is adapted to the size of the feed hole (402).
2. A high-strength and anti-seepage shield segment according to claim 1, characterized in that: The inner wall of the feed hole (402) is slidably connected to a first circular ring (407), a side of the first circular ring (407) close to the blocking block (406) is fixedly connected to a plurality of connecting rods (408), and an end of the connecting rod (408) away from the first circular ring (407) is fixedly connected to a second circular ring (409).
3. The high-strength and anti-seepage shield segment according to claim 1 is characterized in that: The inner wall of the feed hole (402) is provided with two limit grooves (411), the inner walls of the two limit grooves (411) are slidably connected to a limit block (410), and the limit block (410) is fixedly connected to the connecting rod (408).
4. The high-strength and anti-seepage shield segment according to claim 1 is characterized in that: One end of the cylinder (403) away from the shield segment body (1) is fixedly connected to a conical block (412).
5. The high-strength and anti-seepage shield segment according to claim 1 is characterized in that: One end of the cylinder (403) close to the blocking block (406) is fixedly connected with a sealing gasket (413), and the sealing gasket (413) is made of rubber.