Arch lining structure of multi-arch tunnel
By designing a V-shaped support frame and symmetrically distributed connecting components in the lining structure of the arched tunnel, forming a connected arch structure, the problem of excessive tunnel space occupation and construction costs in the prior art is solved, and the structural stability and utilization efficiency are improved.
Patent Information
- Application Number
- CN202422331946.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The volume of the intermediate connecting section of the arch lining structure of the existing connecting arch tunnel is usually large, resulting in an increase in tunnel space and an increase in construction costs, and the use efficiency needs to be improved.
A arch lining structure of the arched tunnel is designed, and a V-shaped support frame and symmetrically distributed connecting components are arranged to form a arched structure, reducing space and reducing construction costs.
The stability of the tunnel arch lining structure is improved, space occupied and construction costs are reduced, and the stability and drainage effect of the structure are ensured through anti-blocking components and backfill of HT low-carbon new materials.
Smart Images
Figure CN223035052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the arch lining structure of a connected-arch tunnel, in particular to the arch lining structure of a connected-arch tunnel. Background Art
[0002] With the acceleration of the urban construction pace, urban construction increasingly encounters the problem that roads are controlled by the road red line and have to pass through low hills. Since the land planning on both sides of the road has been determined, the road cannot be shown in the tunnel section; secondly, the environmental protection requirements are gradually increasing, and large-scale excavation can no longer meet the environmental impact assessment. Therefore, the design difficulty of the road passing through low hills has increased.
[0003] In the prior art, the volume of the middle connection section of the arch lining structure of a connected-arch tunnel is usually set to be relatively large, which will increase the overall occupied space of the tunnel, and at the same time increase the construction cost, and the utilization efficiency needs to be improved.
[0004] Therefore, it is very necessary to propose an arch lining structure of a connected-arch tunnel to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide an arch lining structure of a connected-arch tunnel to solve the problem that in the prior art, the volume of the middle connection section of the arch lining structure of a connected-arch tunnel is usually set to be relatively large, which will increase the overall occupied space of the tunnel, and at the same time increase the construction cost, and the utilization efficiency needs to be improved.
[0006] To achieve the above purpose, the utility model provides the following technical solution: an arch lining structure of a connected-arch tunnel, including a support frame, the support frame is in a V shape, connection components are arranged on both sides of the support frame, and the two connection components are symmetrically distributed with respect to the support frame. The support frame and the two connection components form a connected-arch structure. The connection component includes a first connection section, a second connection section, and a vertical section. The first connection section is lapped between the support frame and the second connection section, and the vertical section is lapped at one end of the second connection section away from the first connection section.
[0007] Preferably, the support frame includes a horizontal section and inclined sections. There are two inclined sections, and the inclined sections are arc-shaped. The two inclined sections are respectively fixedly connected to both ends of the horizontal section, and the ends of the inclined sections away from the horizontal section are inclined upward.
[0008] Preferably, the second connection section, the first connection section, and the inclined sections are distributed in an arc shape, and the vertical section is distributed in a vertical direction.
[0009] Preferably, the bottom end of the horizontal section is horizontal.
[0010] Preferably, a drainage hole is penetrated and opened in the middle section of the horizontal section.
[0011] Preferably, semi-circular grooves are formed at both ends of the upper surface of the horizontal section. The two semi-circular grooves are symmetrically distributed with respect to the drain hole, and both semi-circular grooves communicate with the drain hole.
[0012] Preferably, the semi-circular groove is inclined, and the end of the semi-circular groove close to the drain hole is inclined downward.
[0013] Preferably, an anti-blocking component for preventing blockage of the drain hole is provided at the top of the support frame.
[0014] Preferably, the anti-blocking component includes a square frame, an installation groove and a filter screen. The square frame is located above the horizontal section. The two ends of the square frame are respectively fixedly connected to the two inclined sections, and the support frame is horizontally distributed. The installation groove is formed inside the square frame, and the filter screen is fixedly connected inside the installation groove.
[0015] The technical effects and advantages of the present utility model are as follows:
[0016] 1. By arranging the support frame and two sets of connection components to form a multi-arch structure, the overall stability of the tunnel arch lining structure is improved. At the same time, the occupied space of the multi-arch structure can be reduced, and the construction cost can be lowered.
[0017] 2. By arranging structures such as a square frame, an installation groove and a filter screen, the service strength of the overall structure of the support frame is improved; at the same time, it can prevent soil from directly falling on structures such as semi-circular grooves and drain holes, preventing blockage and ensuring the drainage effect.
[0018] 3. The top of the tunnel arch lining is backfilled with HT low-carbon new material; secondly, the HT low-carbon new material can be used as a buffer layer to absorb a certain amount of bias pressure deformation, thereby ensuring the stability of the tunnel arch lining structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic structural diagram of the multi-arch tunnel arch lining structure of the present utility model.
[0020] Figure 2 It is a schematic sectional structural diagram of the multi-arch tunnel arch lining structure of the present utility model.
[0021] Figure 3 For the present utility model Figure 2 The enlarged schematic diagram of the structure at A in the figure.
[0022] Figure 4 It is a schematic structural diagram of the support frame of the present utility model.
[0023] In the figure: 1. Support frame; 2. First connection section; 3. Second connection section; 4. Vertical section; 5. Horizontal section; 6. Inclined section; 7. Drain hole; 8. Semi-circular groove; 9. Square frame; 10. Installation groove; 11. Filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0025] The present invention provides a Figures 1 to 4 lining structure for the arch part of a multi-arch tunnel as shown, including a support frame 1. A reinforced concrete support body (not shown in the figure) is arranged at a position below the support frame 1 inside the tunnel, and the reinforced concrete support body supports the support frame 1. The support frame 1 is in a V shape, and connection components are arranged on both sides of the support frame 1. The two groups of connection components are symmetrically distributed with respect to the support frame 1, and the support frame 1 and the two groups of connection components form a multi-arch structure. The support frame 1 connects the two groups of connection components, reducing the occupied space of the multi-arch structure.
[0026] Specifically, the connection component includes a first connection section 2, a second connection section 3, and a vertical section 4. The first connection section 2 is lapped between the support frame 1 and the second connection section 3, and the vertical section 4 is lapped at one end of the second connection section 3 away from the first connection section 2. During specific use, the support frame 1, the first connection section 2, the second connection section 3, and the vertical section 4 are lapped and assembled into a multi-arch whole, and welding or other methods can also be used for reinforcement, and the waterproof effect can also be achieved after assembly.
[0027] The support frame 1, the first connection section 2, the second connection section 3, and the vertical section 4 are all made of relatively thick corrugated steel plates and are subjected to rust prevention treatment.
[0028] By setting the support frame 1 and the two groups of connection components to form a multi-arch structure, the overall stability of the lining structure of the tunnel arch part is improved. At the same time, the occupied space of the multi-arch structure can be reduced, and the construction cost can be lowered.
[0029] The support frame 1 includes a horizontal section 5 and inclined sections 6. There are two inclined sections 6, and the inclined sections 6 are in an arc shape. The two inclined sections 6 are respectively fixedly connected to both ends of the horizontal section 5. One end of the inclined section 6 away from the horizontal section 5 inclines upward. The second connection section 3, the first connection section 2, and the inclined sections 6 are distributed in an arc shape; among them, the vertical section 4 is distributed in a vertical direction, and a reinforced concrete base (not shown in the figure) is arranged at a position below the vertical section 4. The reinforced concrete base supports the vertical section 4, so as to cooperate with the support frame 1 to support the first connection section 2 and the second connection section 3, improving the stability of the overall structure. The support frame 1 is set as the horizontal section 5 and the inclined sections 6 to improve the stability of use.
[0030] The bottom end of the horizontal section 5 is horizontal and has a certain width, so as to be convenient for falling on the reinforced concrete support body and improve the stability of the support frame 1 .
[0031] In order to facilitate the drainage of the accumulated water at the top of the support frame 1 and reduce the pressure on the support frame 1, a drainage hole 7 is opened in the middle of the horizontal section 5, and semicircular grooves 8 are opened at both ends of the upper surface of the horizontal section 5. The depth of the semicircular grooves 8 is appropriate and does not affect the overall use strength of the support frame 1. The two semicircular grooves 8 are symmetrically distributed about the drainage hole 7 and can also be adjusted according to specific usage conditions. The two semicircular grooves 8 are both connected to the drainage hole 7.
[0032] To improve the efficiency of drainage, the semicircular groove 8 is tilted, and one end of the semicircular groove 8 near the drainage hole 7 is tilted downward. When draining, the accumulated water can flow toward the drainage hole 7 from the inclined surface of the semicircular groove 8, accelerating the speed of draining the accumulated water.
[0033] In the specific use process, under the premise of ensuring the support strength of the support frame 1, more drainage holes 7 can be set on the support frame 1 to further improve the drainage efficiency. In addition, the semicircular groove 8 can also be set to other shapes, such as: rectangle, etc., which can be adjusted according to the specific use situation.
[0034] During specific use, a longitudinal drainage channel can be reserved on the reinforced concrete support body, and the drainage channel is connected to the drainage hole 7. At the same time, drainage ditches, drainage channels, etc. are provided to form a drainage system, so that the accumulated water on the top of the support frame 1 flows from the semicircular groove 8 to the drainage hole 7, and is discharged from the drainage channel and enters the drainage ditch, drainage channel, etc., so that the accumulated water on the top of the support frame 1 is quickly discharged, thereby reducing the pressure on the support frame 1.
[0035] In order to prevent mud from clogging the drainage hole 7 and the semicircular groove 8, an anti-clogging component is provided on the top of the support frame 1 to prevent the drainage hole 7 from being blocked. The anti-clogging component includes a square frame 9, a mounting groove 10 and a filter screen 11. The square frame 9 is located above the horizontal section 5. The two ends of the square frame 9 are respectively fixedly connected to the two inclined sections 6, and the support frame 1 is horizontally distributed. The mounting groove 10 is opened inside the square frame 9. The filter screen 11 is fixedly connected to the inside of the mounting groove 10. The square frame 9 can be installed on the support frame 1 by welding, thereby improving the use strength of the overall structure of the support frame 1; the filter screen 11 can prevent mud from falling directly into the semicircular groove 8, the drainage hole 7 and other positions to avoid blockage and ensure the drainage effect.
[0036] During specific use, a support frame can be set on the square frame 9. The support frame is supported by steel bars and has a mesh structure to support the filter 11 and improve the compressive strength of the filter 11 and other structures. At the same time, multiple layers of filter 11 can also be set to improve the filtering effect.
[0037] By setting up structures such as the square frame 9, the installation groove 10, and the filter screen 11, the service strength of the overall structure of the support frame 1 is improved; at the same time, it can prevent soil from directly falling on structures such as the semi-circular groove 8 and the drain hole 7, preventing blockage and ensuring the drainage effect.
[0038] Moreover, in the specific use process, U-shaped steel sheet piles, prestressed anchor cables and other structures can be set on both sides of the tunnel arch lining structure to reinforce the tunnel arch lining structure; and considering that the top load should not be too large, HT low-carbon new material is used for backfilling; secondly, the HT low-carbon new material can be used as a buffer layer to absorb a certain amount of bias pressure deformation, thus ensuring the stability of the tunnel arch lining structure.
Claims
1. An arch lining structure of a multi-arch tunnel, comprising a support frame (1), characterized in that: The support frame (1) is in a V-shape, and connecting components are arranged on both sides of the support frame (1), and the two groups of connecting components are symmetrically distributed with respect to the support frame (1). The support frame (1) and the two groups of connecting components form a continuous arch structure, and the connecting components comprise a first connecting section (2), a second connecting section (3) and a vertical section (4), wherein the first connecting section (2) is overlapped between the support frame (1) and the second connecting section (3), and the vertical section (4) is overlapped at an end of the second connecting section (3) away from the first connecting section (2).
2. The arch lining structure of the multi-arch tunnel according to claim 1, characterized in that: The support frame (1) comprises a horizontal section (5) and an inclined section (6), wherein the inclined sections (6) are provided in two pieces, the inclined sections (6) are in an arc shape, the two inclined sections (6) are respectively fixedly connected to the two ends of the horizontal section (5), and one end of the inclined section (6) away from the horizontal section (5) is inclined upward.
3. The arch lining structure of the multi-arch tunnel according to claim 2, characterized in that: The second connecting section (3), the first connecting section (2) and the inclined section (6) are distributed in an arc shape, and the vertical section (4) is distributed in a vertical direction.
4. The arch lining structure of the multi-arch tunnel according to claim 2, characterized in that: The bottom end of the horizontal section (5) is horizontal.
5. The arch lining structure of a multi-arch tunnel according to claim 2, characterized in that: A drainage hole (7) is provided through the middle section of the horizontal section (5).
6. The arch lining structure of the multi-arch tunnel according to claim 5, characterized in that: Semicircular grooves (8) are provided at both ends of the upper surface of the horizontal section (5), the two semicircular grooves (8) are symmetrically distributed about the drainage hole (7), and the two semicircular grooves (8) are both connected to the drainage hole (7).
7. The arch lining structure of the multi-arch tunnel according to claim 6, characterized in that: The semicircular groove (8) is arranged obliquely, and one end of the semicircular groove (8) close to the drainage hole (7) is inclined downward.
8. The arch lining structure of the multi-arch tunnel according to claim 7, characterized in that: An anti-clogging component is provided on the top of the support frame (1) to prevent the drainage hole (7) from being blocked.
9. The arch lining structure of the multi-arch tunnel according to claim 8, characterized in that: The anti-clogging component comprises a square frame (9), a mounting groove (10) and a filter screen (11); the square frame (9) is located above the horizontal section (5); two ends of the square frame (9) are respectively fixedly connected to two inclined sections (6); the support frame (1) is horizontally distributed; the mounting groove (10) is opened inside the square frame (9); and the filter screen (11) is fixedly connected inside the mounting groove (10).