Assembly type connecting structure of connecting passage

Abstract

The utility model relates to tunnel construction technical field, concretely is a kind of assembled connecting passage connecting structure: including main tunnel connecting pipe piece, the bottom of one side of main tunnel connecting pipe piece is fixedly connected with reinforced concrete, the surface of reinforced concrete is installed with connecting passage end ring pipe piece, the surface of reinforced concrete is provided with damping mechanism, and the damping mechanism includes damping seat. The utility model when vibration occurs, end ring pipe piece is driven connection column by mounting plate, makes movable block in damping seat along the sliding of guide block inclined surface, reduces impact potential energy, first shock absorber is damped to connection column in damping seat, is acted on end ring pipe piece by mounting plate, second shock absorber is directly damped to reinforced concrete, and first buffer pad, bottom connection steel sheet and second buffer pad of end ring pipe piece end also play the role of buffering, improve the damping effect, reduce the risk of structural failure, guarantee the safety of tunnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, concretely is a kind of assembled contact passage connecting structure. BACKGROUND

[0002] Contact passage is set in the escape passage of two tunnels, is the important disaster-prevention facilities of interval tunnel, usually in subway tunnel every 600 meters to set a contact passage.

[0003] Assembled contact passage connecting structure obtains certain application in the field of tunnel construction, tunnel is influenced by vibration, earthquake and other external factors generated by train running in the process of operation, due to the poor shock absorption performance of contact passage connecting structure, vibration and impact force cannot be effectively buffered and absorbed, prone to cause the loosening, damage and other conditions of connecting part, increase the risk of structural failure, reduce the safety of tunnel. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of assembled contact passage connecting structure to solve the problem that the shock absorption performance of contact passage connecting structure is not good in the above background technique, vibration and impact force cannot be effectively buffered and absorbed, prone to cause the loosening, damage and other conditions of connecting part, increase the risk of structural failure, reduce the safety of tunnel.

[0005] In order to achieve the above object, the utility model provides the following technical scheme, a kind of assembled connecting passage connecting structure: including main tunnel connecting pipe piece, the bottom of one side of the main tunnel connecting pipe piece is fixedly connected with reinforced concrete, the surface of the reinforced concrete is installed with connecting passage end head ring pipe piece, the surface of the reinforced concrete is provided with damping mechanism, the damping mechanism includes damping seat, the surface of the damping seat is fixedly connected on the main tunnel connecting pipe piece, the surface of the damping seat is slidably connected with mounting plate, the surface of the mounting plate is fixedly connected with high-strength bolt, the high-strength bolt is connected on the connecting passage end head ring pipe piece in hole, the surface of the high-strength bolt is threadedly connected with lock nut, the inside of the damping seat is fixedly connected with guide block, the inside of the damping seat is slidably connected with movable block, the surface of the movable block is fixedly connected with connecting column, the bottom of the mounting plate is fixedly connected at the top of connecting column, the inside of the damping seat is rotatably connected with first shock absorber, the telescopic end of the first shock absorber is rotatably connected on the surface of connecting column, the surface of the reinforced concrete is rotatably connected with second shock absorber, the telescopic end of the second shock absorber is rotatably connected on the surface of the connecting passage end head ring pipe piece, the side of the connecting passage end head ring pipe piece is fixedly connected with first buffer pad, the surface of the reinforced concrete is fixedly connected with fixed steel frame, the bottom of the connecting passage end head ring pipe piece is fixedly connected with connecting steel sheet, the both sides of the connecting steel sheet are fixedly connected with second buffer pad.

[0006] Preferably, a sealing mechanism is provided between the reinforced concrete and the connecting passage end head ring pipe piece, the sealing mechanism includes an expandable waterproof steel plate, the expandable waterproof steel plate is fixedly connected to the surface of the reinforced concrete, the telescopic end of the expandable waterproof steel plate is fixedly connected with an extrusion spring, the surface of the extrusion spring is fixedly connected with a water blocking block, the telescopic end of the extrusion spring is fixedly connected with a sealing tube, the bottom of the water blocking block is fixedly connected with a sealing pad, the surface of the connecting passage end head ring pipe piece is fixedly connected with a water guide groove, the surface of the water guide groove is fixedly connected with a guide rod, the sealing tube is slidably connected to the surface of the guide rod, and a drainage opening is formed in one side of the water guide groove.

[0007] Preferably, the high-strength bolt cooperates with the lock nut to fix the connecting passage end head ring pipe piece on the surface of the mounting plate, the guide block is provided in two groups and has a right triangle shape, and the movable block has a trapezoidal shape with two sides obliquely connected to the inclined surfaces of the guide blocks.

[0008] Preferably, the guide block guides the sliding of the movable block, the movable block drives the mounting plate to slide synchronously through the connecting column, the first shock absorber dampens the connecting column inside the damping seat, the connecting column dampens the connecting passage end head ring pipe piece through the mounting plate, and the second shock absorber directly dampens the connecting passage end head ring pipe piece on the top of the reinforced concrete.

[0009] Preferably, the first buffer pad buffers the end of the contact passage end ring pipe piece, the fixed steel frame section is in the shape of "L", the second buffer pad is provided with two groups, one group is connected with the fixed steel frame, and the other group is connected with the surface of the reinforced concrete, and the second buffer pad buffers the contact passage end ring pipe piece through the connecting steel plate.

[0010] Preferably, the telescopic waterproof steel plate can adapt to the lifting of the contact passage end ring pipe piece when vibrating, and the extrusion spring makes the water blocking block extrude the sealing gasket on the surface of the water guide groove through the elastic force.

[0011] Preferably, the inside of the sealing pipe is provided with a sealing ring, and the water blocking block is in the shape of a trapezoid as a whole.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、The connecting structure, through high-strength bolts and lock nuts, installs the contact passage end ring pipe piece on the mounting plate, when vibrating, the contact passage end ring pipe piece drives the connecting column to move through the mounting plate, the connecting column drives the movable block to slide in the damping seat, the movable block slides along the inclined surface under the guidance of the guide block, reduces the impact potential energy generated by the vibration of the contact passage end ring pipe piece, at this time, the first damper reduces the vibration of the connecting column in the damping seat, and then the mounting plate is used to realize the damping of the contact passage end ring pipe piece, and the second damper directly reduces the vibration of the contact passage end ring pipe piece on the reinforced concrete, and the first buffer pad at the end of the contact passage end ring pipe piece buffers on the reinforced concrete, and the connecting steel plate at the bottom of the contact passage end ring pipe piece and the second buffer pad buffer between the reinforced concrete and the fixed steel frame, so that the main tunnel connecting pipe piece and the contact passage end ring pipe piece are effectively damped, the loosening and damage of the connecting part are avoided, the risk of structural failure is reduced, and the safety of the tunnel is ensured.

[0014] 2、The connecting structure, in the process of vibrating of the contact passage end ring pipe piece, the telescopic end of the telescopic waterproof steel plate adapts to the movement of the water guide groove and the water blocking block at the bottom position of the telescopic waterproof steel plate, and the extrusion spring makes the water blocking block extrude the sealing gasket on the surface of the water guide groove through the elastic force, and in the process of sliding of the guide rod in the sealing pipe, the sealing ring in the sealing pipe seals the connecting position of the guide rod, so that the telescopic waterproof steel plate, the water blocking block and the water guide groove are always dynamically closed to the main tunnel connecting pipe piece and the contact passage end ring pipe piece, the sealing property of the connecting part is ensured in the process of vibrating of the main tunnel connecting pipe piece and the contact passage end ring pipe piece, and the sealing effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1This is a cross-sectional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a cross-sectional schematic diagram of the shock absorber seat structure of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B;

[0019] Figure 5 This is a cross-sectional schematic diagram of the telescopic waterproof steel plate structure of this utility model.

[0020] In the diagram: 1. Main tunnel connecting segment; 11. Reinforced concrete; 12. Connecting passage end ring segment; 2. Vibration damping seat; 21. Mounting plate; 22. High-strength bolt; 23. Locking nut; 24. Guide block; 25. Movable block; 26. Connecting column; 27. First shock absorber; 28. Second shock absorber; 3. First buffer pad; 31. Fixed steel frame; 32. Connecting steel plate; 33. Second buffer pad; 4. Telescopic waterproof steel plate; 41. Compression spring; 42. Water blocking block; 43. Sealing pipe; 44. Sealing gasket; 45. Water guide channel; 46. Guide rod; 47. Drainage outlet. Detailed Implementation

[0021] Please see Figures 1-5 One embodiment provided by this utility model:

[0022] A prefabricated connecting tunnel structure includes a main tunnel connecting segment 1. A reinforced concrete 11 is fixedly connected to the bottom of one side of the main tunnel connecting segment 1. A connecting tunnel end ring segment 12 is installed on the surface of the reinforced concrete 11. A vibration damping mechanism is provided on the surface of the reinforced concrete 11, including a vibration damping seat 2. The vibration damping seat 2 is fixedly connected to the surface of the main tunnel connecting segment 1. A mounting plate 21 is slidably connected to the surface of the vibration damping seat 2. High-strength bolts 22 are fixedly connected to the surface of the mounting plate 21. The high-strength bolts 22 are perforated and connected to the connecting tunnel end ring segment 12. A locking nut 23 is threaded onto the surface of the high-strength bolts 22. A guide block 24 is fixedly connected inside the vibration damping seat 2. A movable block 25 is slidably connected inside the vibration damping seat 2. A connecting column 26 is fixedly connected to the surface of the movable block 25. The bottom of the mounting plate 21 is fixedly connected to the top of the connecting column 26. The internal rotation of the vibration damping seat 2... A first shock absorber 27 is rotatably connected to the main tunnel connecting segment 1 and the connecting channel end ring segment 12. The telescopic end of the first shock absorber 27 is rotatably connected to the surface of the connecting column 26. A second shock absorber 28 is rotatably connected to the surface of the reinforced concrete 11. The telescopic end of the second shock absorber 28 is rotatably connected to the surface of the connecting channel end ring segment 12. A first buffer pad 3 is fixedly connected to one side of the connecting channel end ring segment 12. A fixed steel frame 31 is fixedly connected to the surface of the reinforced concrete 11. A connecting steel plate 32 is fixedly connected to the bottom of the connecting channel end ring segment 12. Second buffer pads 33 are fixedly connected to both sides of the connecting steel plate 32. After the shock absorption mechanism connects the main tunnel connecting segment 1 and the connecting channel end ring segment 12, it can effectively absorb vibration and impact forces between the main tunnel connecting segment 1 and the connecting channel end ring segment 12, avoid loosening or damage at the connection points, reduce the risk of structural failure, and ensure the safety of the tunnel.

[0023] Furthermore, a sealing mechanism is provided between the reinforced concrete 11 and the connecting passage end ring segment 12. The sealing mechanism includes a telescopic waterproof steel plate 4, which is fixedly connected to the surface of the reinforced concrete 11. A compression spring 41 is fixedly connected to the telescopic end of the telescopic waterproof steel plate 4. A water-blocking block 42 is fixedly connected to the surface of the compression spring 41. A sealing tube 43 is fixedly connected to the telescopic end of the compression spring 41. A sealing gasket 44 is fixedly connected to the bottom of the water-blocking block 42. A water guide groove 45 is fixedly connected to the surface of the connecting passage end ring segment 12. A guide rod 46 is fixedly connected to the surface of the water guide groove 45. The sealing tube 43 is slidably connected to the surface of the guide rod 46. A drainage outlet 47 is provided on one side of the water guide groove 45. This sealing mechanism is a dynamic sealing mechanism, which can ensure the sealing of the connection part during the vibration of the main tunnel connecting segment 1 and the connecting passage end ring segment 12, thus ensuring the sealing effect.

[0024] Furthermore, the high-strength bolts 22, together with the locking nuts 23, fix the end ring tube 12 of the connecting channel to the surface of the mounting plate 21. Two sets of guide blocks 24 are provided, and they are in the shape of right-angled triangles. The movable block 25 is in the shape of a trapezoid, and the two sides of the movable block 25 are obliquely connected to the inclined surface of the guide block 24. During the movement of the end ring tube 12 of the connecting channel, the connecting column 26 is moved by the mounting plate 21, which in turn drives the movable block 25 to move inside the shock absorber 2. Since the guide block 24 is a right-angled triangle, the movable block 25 and the connecting column 26 slide along the inclined surface, so that the end ring tube 12 of the connecting channel can slide the movable block 25 between the two sets of guide blocks 24 by gravity, which is convenient for the next shock absorption.

[0025] Furthermore, the guide block 24 guides the sliding of the movable block 25. The movable block 25 drives the mounting plate 21 to slide synchronously through the connecting column 26. The first shock absorber 27 dampens the connecting column 26 inside the shock absorber seat 2, while the connecting column 26 dampens the end ring pipe segment 12 of the connecting channel through the mounting plate 21. The second shock absorber 28 directly dampens the end ring pipe segment 12 of the connecting channel on the top of the reinforced concrete 11. Through the cooperation of the first shock absorber 27 and the second shock absorber 28 with the sliding of the movable block 25 on the inclined surface of the guide block 24, the impact force generated by vibration is effectively absorbed. The first shock absorber 27 and the second shock absorber 28 are both composed of damping rods and shock absorber springs. The shock absorber seat 2 has built-in lubricating oil, which can lubricate the sliding of the movable block 25 on the inclined surface of the guide block 24, extend the service life of the movable block 25 and the guide block 24, reduce the number of replacements and repairs required due to component wear, and reduce maintenance costs.

[0026] Furthermore, the first buffer pad 3 provides shock absorption at the end of the connecting tunnel end ring segment 12. The fixed steel frame 31 has an "L" shaped cross section. Two sets of the second buffer pad 33 are provided, one set is connected to the fixed steel frame 31, and the other set is connected to the surface of the reinforced concrete 11. The second buffer pad 33 provides shock absorption for the connecting tunnel end ring segment 12 through the connecting steel plate 32. The first buffer pad 3 and the second buffer pad 33 effectively buffer the impact force generated by vibration on the connecting tunnel end ring segment 12, effectively reducing the vibration amplitude and ensuring the stability of the connection between the main tunnel connecting segment 1 and the reinforced concrete 11.

[0027] Furthermore, the telescopic end of the telescopic waterproof steel plate 4 can adapt to the rise and fall of the connecting channel end ring pipe segment 12 during vibration. The compression spring 41 causes the water blocking block 42 to press the sealing gasket 44 onto the surface of the water guide groove 45 through its elasticity. This ensures that when the telescopic end of the telescopic waterproof steel plate 4 extends or retracts, the water blocking block 42 always presses the sealing gasket 44 onto the water guide groove 45. In addition, the telescopic end of the telescopic waterproof steel plate 4 has a built-in rubber gasket to seal the extension and retraction of the first buffer pad 3. This achieves a dynamic seal between the telescopic waterproof steel plate 4, the water blocking block 42, and the water guide groove 45. The water inside the water guide groove 45 is discharged through the drain outlet 47.

[0028] Furthermore, a sealing ring is provided inside the sealing pipe 43, the water blocking block 42 is trapezoidal in shape, and the guide rod 46 is also dynamically sealed during the sliding process inside the sealing pipe 43. This ensures that the connection between the main tunnel connecting segment 1 and the connecting channel end ring segment 12 can maintain a good sealing state during vibration, thus guaranteeing the sealing effect.

[0029] Working principle: The connecting channel end ring segment 12 is installed on the mounting plate 21 using high-strength bolts 22 and locking nuts 23. When vibration occurs, the connecting channel end ring segment 12 moves the connecting column 26 via the mounting plate 21. The connecting column 26 drives the movable block 25 to slide inside the damping seat 2. Guided by the guide block 24, the movable block 25 slides along the inclined surface, reducing the impact potential energy generated by the vibration of the connecting channel end ring segment 12. At this time, the first shock absorber 27 dampens the connecting column 26 inside the damping seat 2, thereby achieving damping of the connecting channel end ring segment 12 via the mounting plate 21. The first shock absorber 28 directly dampes the connecting tunnel end ring segment 12 on the reinforced concrete 11. In addition, the first buffer pad 3 at the end of the connecting tunnel end ring segment 12 buffers the connection on the reinforced concrete 11. The connecting steel plate 32 and the second buffer pad 33 at the bottom of the connecting tunnel end ring segment 12 buffer the connection between the reinforced concrete 11 and the fixed steel frame 31. This achieves effective damping between the main tunnel connecting segment 1 and the connecting tunnel end ring segment 12, avoiding loosening or damage at the connection points, reducing the risk of structural failure, and ensuring the safety of the tunnel.

[0030] During the vibration of the connecting tunnel end ring segment 12, the telescopic waterproof steel plate 4 adapts to the movement of the water guide channel 45 and the water blocking block 42 at the bottom of the telescopic waterproof steel plate 4. The compression spring 41 uses its elasticity to make the water blocking block 42 press the sealing gasket 44 against the surface of the water guide channel 45. During the sliding of the sealing tube 43, the sealing ring inside the sealing tube 43 seals the connection of the guide rod 46. This ensures that the telescopic waterproof steel plate 4, the water blocking block 42, and the water guide channel 45 continuously and dynamically seal the main tunnel connecting segment 1 and the connecting tunnel end ring segment 12. This ensures the sealing performance of the connection part during the vibration of the main tunnel connecting segment 1 and the connecting tunnel end ring segment 12.

Claims

1. A prefabricated communication channel connection structure, characterized in that: The system includes a main tunnel connecting segment, with reinforced concrete fixedly connected to one side of its bottom. A connecting passage end ring segment is installed on the surface of the reinforced concrete. A vibration damping mechanism is provided on the surface of the reinforced concrete, comprising a vibration damping seat fixedly connected to the surface of the main tunnel connecting segment. A mounting plate is slidably connected to the surface of the vibration damping seat, and high-strength bolts are fixedly connected to the surface of the mounting plate. The high-strength bolts are perforated and connected to the connecting passage end ring segment. A lock nut is threaded onto the surface of the high-strength bolts. A guide block is fixedly connected inside the vibration damping seat, and a movable guide block is slidably connected inside the vibration damping seat. The movable block has a connecting column fixedly connected to its surface. The bottom of the mounting plate is fixedly connected to the top of the connecting column. A first shock absorber is rotatably connected inside the shock absorber seat. The telescopic end of the first shock absorber is rotatably connected to the surface of the connecting column. A second shock absorber is rotatably connected to the surface of the reinforced concrete. The telescopic end of the second shock absorber is rotatably connected to the surface of the connecting channel end ring segment. A first buffer pad is fixedly connected to one side of the connecting channel end ring segment. A fixed steel frame is fixedly connected to the surface of the reinforced concrete. A connecting steel plate is fixedly connected to the bottom of the connecting channel end ring segment. Second buffer pads are fixedly connected to both sides of the connecting steel plate.

2. The prefabricated communication channel connection structure according to claim 1, characterized in that: A sealing mechanism is provided between the reinforced concrete and the end ring segment of the connecting channel. The sealing mechanism includes a telescopic waterproof steel plate, which is fixedly connected to the surface of the reinforced concrete. A compression spring is fixedly connected to the telescopic end of the telescopic waterproof steel plate. A water-blocking block is fixedly connected to the surface of the compression spring. A sealing tube is fixedly connected to the telescopic end of the compression spring. A sealing gasket is fixedly connected to the bottom of the water-blocking block. A water guide groove is fixedly connected to the surface of the end ring segment of the connecting channel. A guide rod is fixedly connected to the surface of the water guide groove. The sealing tube is slidably connected to the surface of the guide rod. A drain outlet is provided on one side of the water guide groove.

3. The prefabricated communication channel connection structure according to claim 1, characterized in that: The high-strength bolts, in conjunction with the locking nuts, fix the end ring tube of the connecting channel to the surface of the mounting plate. There are two sets of guide blocks, which are in the shape of right-angled triangles. The movable block is in the shape of a trapezoid, and the two sides of the movable block are obliquely connected to the inclined surface of the guide block.

4. The prefabricated communication channel connection structure according to claim 3, characterized in that: The guide block guides the sliding of the movable block, and the movable block drives the mounting plate to slide synchronously through the connecting column. The first shock absorber dampens the connecting column inside the shock absorber seat, while the connecting column dampens the end ring segment of the connecting channel through the mounting plate. The second shock absorber directly dampens the end ring segment of the connecting channel on the top of the reinforced concrete.

5. The prefabricated communication channel connection structure according to claim 1, characterized in that: The first buffer pad provides shock absorption at the end of the connecting channel end ring segment. The fixed steel frame has an "L" shaped cross section. The second buffer pad is provided in two sets, one set is connected to the fixed steel frame and the other set is connected to the surface of reinforced concrete. The second buffer pad provides shock absorption for the connecting channel end ring segment through the connecting steel plate.

6. The prefabricated communication channel connection structure according to claim 2, characterized in that: The telescopic end of the telescopic waterproof steel plate can adapt to the rise and fall of the ring pipe segment at the end of the connecting channel when it vibrates. The compression spring causes the water blocking block to press the sealing gasket onto the surface of the water guide channel through its elastic force.

7. The prefabricated communication channel connection structure according to claim 2, characterized in that: The sealing tube is equipped with a sealing ring inside, and the water-blocking block is trapezoidal in shape.

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