Diversion tunnel excavation supporting structure

Abstract

The utility model discloses a diversion tunnel excavation supporting structure which comprises a bottom plate and an inner rod, an assembling assembly is installed on the top of the bottom plate, the assembling assembly comprises a supporting plate and an arc plate, splicing assemblies are installed on the inner side of the supporting plate and the inner side of the arc plate, each splicing assembly comprises a connecting rod and a connecting block, an inserting assembly is installed on the connecting block, and the inserting assembly is connected with the connecting rod. According to the diversion tunnel excavation supporting structure, supporting equipment can be rapidly installed and fixed, on-site pouring construction work is not needed, the construction efficiency is improved, tedious bolt fastening operation is not needed, the construction efficiency is improved, and the construction cost is reduced. The connecting blocks are mutually fixed through the inserting blocks and the inserting openings, the inserting blocks are locked on the inner sides of the inserting openings through the clamping pins, then the situation of loose connection is effectively avoided, manpower consumption can be saved, the installation firmness of supporting equipment can be guaranteed, and the supporting device is suitable for supporting operation after excavation of the diversion tunnel.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel excavation and support equipment, specifically a support structure for water diversion tunnel excavation. Background Technology

[0002] During the excavation of water diversion tunnels, support equipment is often required to ensure the safety of the tunnels. Utility model patent application CN201620251420.1 discloses a steel arch support structure for tunnel excavation. After excavating the proposed tunnel and completing the construction of multiple steel arch supports, reinforced concrete locking beams are poured at the arch shoulders and the middle of the straight edges of each steel arch. These reinforced concrete locking beams are continuous, have small cross-sectional dimensions, and do not affect subsequent tunnel lining concrete construction. The four continuously poured locking beams and the steel arch supports used to support the tunnel's portal-shaped cross-section are described. Together, they form a stable support structure, improving the support stability of the steel arch support structure. The steel arch support structure is simple, safe, reliable, easy to construct, and inexpensive. It can also effectively reduce the deformation of the surrounding rock and ensure construction safety. According to its publicly available technical solutions, existing tunnel excavation support equipment often requires on-site pouring construction inside the tunnel, reducing work efficiency. Furthermore, the erection of the steel arch often requires cumbersome bolt tightening operations, increasing manpower consumption. Moreover, the steel arch is prone to loosening due to vibration and pressure, which is not conducive to ensuring the support strength of the support equipment.

[0003] Therefore, how to design the excavation and support structure of the water diversion tunnel has become a problem we need to solve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support structure for the excavation of a water diversion tunnel to solve the problems mentioned in the background. This utility model is reasonably designed, convenient to use, and suitable for support operations after the excavation of a water diversion tunnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support structure for excavation of a water diversion tunnel, comprising a base plate and an inner rod. An assembly component is installed on the top of the base plate. The assembly component includes a support plate and an arc plate. A splicing component is installed on the inner side of the support plate and the arc plate. The splicing component includes a connecting rod and a connecting block. A plug-in component is installed on the connecting block. The plug-in component includes a plug and a socket. A movable component is installed on the inner side of the connecting block. The movable component includes a slot and a spring. A locking component is installed on the slot and the plug. The locking component includes a locking pin and a locking socket.

[0006] Furthermore, the base plate is cast on the outside of the inner rod, and the support plate and arc plate are both cast on the outside of the connecting rod.

[0007] Furthermore, the bottom of the support plate is respectively secured to the top of both ends of the base plate, and the arc plate is connected end to end and installed on the top of the support plate.

[0008] Furthermore, the connecting blocks are welded to both ends of the inner rod and the connecting rod, and the outer sides of the connecting blocks extend to the outer sides of the base plate, the support plate and the arc plate, respectively.

[0009] Furthermore, rivets are installed on the arc plate, with one end of the rivet being engaged in the inner wall of the arc plate, and the other end of the rivet passing through the arc plate and the connecting rod and extending to the outer side of the arc plate.

[0010] Furthermore, the insert is integrally formed on one side of the connecting block, the insertion port is opened on the other side of the connecting block, and the latch is opened on the inner side of the insert.

[0011] Furthermore, the slot is located on the inner side of the connecting block, the slot is connected to the socket, and one end of the locking pin is engaged with the inner side of the slot.

[0012] Furthermore, one end of the locking pin is connected to the inner wall of the slot via a spring, and the other end of the locking pin passes through the slot and extends to the inside of the insertion or latch.

[0013] Beneficial effects: 1. When using this water diversion tunnel excavation support structure, the bottom plate, support plate, and arc plate are transported to the inside of the water diversion tunnel one by one. The bottom plate is laid at the bottom of the water diversion tunnel, the support plates are connected and fixed to each other by connecting blocks, and the arc plates are spliced ​​and installed on the top of the support plates one by one. Finally, the arc plates are anchored to the inner wall of the water diversion tunnel by rivets. This allows for the rapid installation and fixing of the support equipment without the need for on-site pouring construction, improving construction efficiency, avoiding the impact of tunnel movement on the concrete during the solidification process, and ensuring the support strength of the concrete structure.

[0014] 2. During the assembly of the water diversion tunnel excavation support structure, the inserts on adjacent connecting blocks are inserted into the inner side of each other's sockets. This causes the insert to first compress the locking pin and spring, pressing it into the inner side of the slot. Then, when the insert is fully inserted into the inner side of the socket, the locking pin on the insert moves to the outer side of the locking pin. The spring pushes the locking pin from the inner side of the slot to the inner side of the locking pin, thus fixing the adjacent connecting blocks together. This allows the base plate, support plate, and guard plate to be locked together by the inner rod and connecting rod, eliminating the need for cumbersome bolt tightening. The connecting blocks are fixed together by the inserts and sockets, with the inserts locked inside the sockets by the locking pins, effectively preventing loose connections. This saves manpower and ensures the stability of the support equipment installation.

[0015] 3. The design of the water diversion tunnel excavation support structure is reasonable, and it is efficient and convenient to use. It is suitable for support operations after the excavation of the water diversion tunnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the excavation support structure for a water diversion tunnel according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a water diversion tunnel excavation support structure according to the present invention;

[0018] Figure 3 This is a schematic diagram of the arc plate of the water diversion tunnel excavation support structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting block structure of a water diversion tunnel excavation support structure according to the present invention;

[0020] In the diagram: 1. Base plate; 2. Support plate; 3. Arc plate; 4. Inner rod; 5. Connecting rod; 6. Connecting block; 7. Rivet; 8. Insert block; 9. Insertion port; 10. Bay; 11. Slot; 12. Locking pin; 13. Spring. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a support structure for excavation of a water diversion tunnel, comprising a base plate 1 and an inner rod 4. An assembly component is installed on the top of the base plate 1. The assembly component includes a support plate 2 and an arc plate 3. A splicing component is installed on the inner side of the support plate 2 and the arc plate 3. The splicing component includes a connecting rod 5 and a connecting block 6. A plug-in component is installed on the connecting block 6. The plug-in component includes a plug 8 and a socket 9. A movable component is installed on the inner side of the connecting block 6. The movable component includes a slot 11 and a spring 13. A locking component is installed on the slot 11 and the plug 8. The locking component includes a locking pin 12 and a locking slot 10. The base plate 1 is cast and formed on the outside of the inner rod 4. The support plate 2 and the arc plate 3 are both cast and formed on the outside of the connecting rod 5. The bottom of the support plate 2 is respectively locked at both ends of the base plate 1. At the top, the arc plate 3 is connected end to end and installed on the top of the support plate 2. Rivets 7 are installed on the arc plate 3. One end of the rivet 7 is stuck on the inner wall of the arc plate 3, and the other end of the rivet 7 passes through the arc plate 3 and the connecting rod 5 and extends to the outer side of the arc plate 3. In use, the base plate 1, support plate 2 and arc plate 3 are transported to the inner side of the water diversion tunnel one by one. The base plate 1 is laid at the bottom of the water diversion tunnel. The support plates 2 are connected and fixed to each other by the connecting blocks 6. Then the arc plates 3 are spliced ​​one by one and installed on the top of the support plate 2. Finally, the arc plate 3 is anchored to the inner wall of the water diversion tunnel by the rivets 7. This allows for the rapid installation and fixing of the support equipment without the need for on-site pouring construction, improving construction efficiency, avoiding the impact of tunnel movement on the concrete during the solidification process, and ensuring the supporting strength of the concrete structure.

[0023] In this embodiment, the connecting blocks 6 are welded to both ends of the inner rod 4 and the connecting rod 5, respectively. The outer sides of the connecting blocks 6 extend to the outer sides of the base plate 1, the support plate 2, and the arc plate 3, respectively. The insert block 8 is integrally formed on one side of the connecting block 6. The insertion port 9 is opened on the other side of the connecting block 6. The latch 10 is opened on the inner side of the insert block 8. The slot 11 is opened on the inner side of the connecting block 6 and communicates with the insertion port 9. One end of the locking pin 12 is locked in the inner side of the slot 11. One end of the locking pin 12 is connected to the inner wall of the slot 11 through the spring 13. The other end of the locking pin 12 passes through the slot 11 and extends to the inner side of the insertion port 9 or the latch 10. During assembly, the insert blocks 8 on adjacent connecting blocks 6 are inserted into each other's insertion ports 9. The inner side allows the insert block 8 to first compress the spring 13 and press the pin 12 into the inner side of the slot 11. Then, when the insert block 8 is fully inserted into the inner side of the socket 9, the slot 10 on the insert block 8 moves to the outer side of the pin 12. The spring 13 pushes the pin 12 from the inner side of the slot 11 to the inner side of the slot 10, thereby fixing the adjacent connecting blocks 6 together. This allows the base plate 1, support plate 2, and guard plate 3 to be locked together by the inner rod 4 and connecting rod 5, eliminating the need for cumbersome bolt tightening. The connecting blocks 6 are fixed together by the insert block 8 and the socket 9. The insert block 8 is locked inside the socket 9 by the pin 12, effectively preventing loose connections. This saves manpower and ensures the installation stability of the support equipment.

[0024] In use, the excavation support structure for this water diversion tunnel involves transporting the base plate 1, support plate 2, and arc plate 3 one by one to the inside of the water diversion tunnel. The base plate 1 is laid at the bottom of the tunnel. The support plates 2 are then connected and fixed together using connecting blocks 6. The arc plates 3 are then spliced ​​and installed on top of the support plates 2. Finally, the arc plates 3 are anchored to the inner wall of the tunnel using rivets 7. This allows for rapid installation and fixing of the support equipment without the need for on-site pouring, improving construction efficiency and preventing the concrete from being affected by tunnel movement during solidification, thus ensuring the structural strength of the concrete. During assembly, the inserts 8 on adjacent connecting blocks 6 are inserted into the inner side of each other's insertion slots 9, thereby ensuring the inserts... First, the locking pin 12 compresses the spring 13 and presses it into the inside of the slot 11. Then, when the insert block 8 is fully inserted into the inside of the socket 9, the locking slot 10 on the insert block 8 moves to the outside of the locking pin 12. The spring 13 pushes the locking pin 12 from the inside of the slot 11 to the inside of the locking slot 10, thereby fixing the adjacent connecting blocks 6 together. This allows the base plate 1, support plate 2, and guard plate 3 to be locked together by the inner rod 4 and connecting rod 5. There is no need for cumbersome bolt tightening operations. The connecting blocks 6 are fixed together by the insert block 8 and the socket 9. The insert block 8 is locked inside the socket 9 by the locking pin 12, thereby effectively preventing the connection from becoming loose. This effectively saves manpower and ensures the installation firmness of the support equipment.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A diversion tunnel excavation support structure comprising a floor (1) and an inner lining (4), a top portion of the floor (1) being fitted with an assembly assembly comprising a support plate (2) and an arc plate (3), characterized in that: The inner side of the support plate (2) and the arc plate (3) is provided with a splicing assembly, the splicing assembly comprises a connecting rod (5) and a connecting block (6), the connecting block (6) is provided with a plug-in assembly, the plug-in assembly comprises a plug block (8) and a socket (9), the inner side of the connecting block (6) is provided with a movable assembly, the movable assembly comprises a clamping groove (11) and a spring (13), the clamping groove (11) and the plug block (8) are provided with a locking assembly, the locking assembly comprises a clamping pin (12) and a socket (10).

2. A diversion tunnel excavation support structure according to claim 1, characterised in that: The bottom plate (1) is cast on the outer side of the inner rod (4), and the support plate (2) and the arc plate (3) are cast on the outer side of the connecting rod (5).

3. A diversion tunnel excavation support structure according to claim 2, characterised in that: The bottom part of the support plate (2) is clamped on the top of the two ends of the bottom plate (1), and the arc plate (3) is connected end to end and installed on the top of the support plate (2).

4. A diversion tunnel excavation support structure according to claim 1, characterised in that: The connecting block (6) is welded at the two ends of the inner rod (4) and the connecting rod (5) respectively, and the outer side of the connecting block (6) extends to the outer side of the bottom plate (1), the support plate (2) and the arc plate (3) respectively.

5. A diversion tunnel excavation support structure according to claim 4, characterised in that: The arc plate (3) is provided with a rivet (7), one end of the rivet (7) is clamped on the inner wall of the arc plate (3), and the other end of the rivet (7) extends to the outer side of the arc plate (3) through the arc plate (3) and the connecting rod (5).

6. A diversion tunnel excavation support structure according to claim 5, characterised in that: The plug block (8) is integrally formed on one side of the connecting block (6), and the socket (9) is formed on the other side of the connecting block (6), and the socket (10) is formed on the inner side of the plug block (8).

7. A diversion tunnel excavation support structure according to claim 6, characterised in that: The clamping groove (11) is formed on the inner side of the connecting block (6), and the clamping groove (11) is communicated with the socket (9), and one end of the clamping pin (12) is clamped on the inner side of the clamping groove (11).

8. A diversion tunnel excavation support structure according to claim 7, characterised in that: One end of the clamping pin (12) is connected with the inner wall of the clamping groove (11) through the spring (13), and the other end of the clamping pin (12) extends to the inner side of the socket (9) or the socket (10) through the clamping groove (11).

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