Pipe jacking structure for high-internal-water-pressure water conveying tunnel

Abstract

The utility model relates to the technical field of tunnel pipe jacking, in particular to a pipe jacking structure for a high-internal-water-pressure water conveying tunnel, which comprises a pipeline, the front surface of the pipeline is fixedly connected with a first fixing ring, and the inner wall of the pipeline is in contact with a connecting block. Due to the fact that the first clamping groove and the second clamping groove are formed in the left side and the right side of each connecting block respectively, the multiple connecting blocks can be spliced into the arc shape matched with the pipeline, and the clamping blocks can be inserted into the inserting grooves formed by the first clamping grooves and the second clamping grooves, the multiple connecting blocks can be tightly connected; meanwhile, second fixing rings fixed to the inner walls of a plurality of connecting blocks can achieve the secondary fixing effect, under the action of second fixing columns, the inner wall of the pipeline can be supported under the condition that the second fixing rings are fixed, the device can resist large external loads, the structure can effectively disperse and transmit the external force, and the structure is simple and convenient to use. And the problems of deformation or fracture damage and the like of the pipeline due to overlarge pressure are prevented.

Description

Technical Field

[0001] This application relates to the technical field of tunnel jacking, and in particular to a tunnel jacking structure for high internal water pressure water conveyance tunnels. Background Technology

[0002] Pipe jacking is a trenchless underground pipeline laying technology. It uses the thrust of the main jacking cylinder and the pipeline and intermediate stations to push the tool pipe or tunneling machine from the working pit through the soil layer to the receiving pit. At the same time, the pipeline following the tool pipe or tunneling machine is buried between the two pits, so as to achieve the purpose of laying underground pipelines without excavating the surface.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following defects: In the prior art, some jacking pipes have a large diameter, which means that when the jacking pipes are buried at a greater depth or in complex geological conditions, they will bear a greater external load, including the pressure of the soil above, the pressure of groundwater, and the lateral pressure of the surrounding soil. This may lead to problems such as pipe deformation and pipe wall denting, or even pipe rupture and damage. Utility Model Content

[0004] To reduce the damage to the pipe jacking system caused by external loads, this application provides a pipe jacking structure for high internal water pressure water conveyance tunnels.

[0005] This application provides a pipe jacking structure for high internal water pressure water conveyance tunnels, employing the following technical solution: It includes a pipe, with a fixing ring 1 fixedly connected to the front of the pipe, a connecting block contacting the inner wall of the pipe, a slot 1 on the right side of the connecting block, a slot 2 on the left side of the connecting block, a locking block fixedly connected to the inner wall of the slot 1, and several connecting blocks arranged in a circular array. A fixing ring 2 is provided on the inner wall of the pipe, and the inner walls of the several connecting blocks are fixedly connected to the outer wall of the fixing ring 2. A fixing rod is provided inside the pipe, also arranged in a circular array, with a fixing column 2 fixedly connected to the top of the bottom fixing rod.

[0006] Optionally, a sealing groove is provided on the front of the pipe, a sealing ring is in contact with the front of the pipe, and a second sealing ring is fixedly connected to the front of the first sealing ring, and there are two second sealing rings.

[0007] Optionally, the two sealing rings are symmetrically arranged with the sealing ring one as the center. The inner wall of the sealing groove one is in contact with the outer wall of the sealing ring two located on the back side. A contact ring is fixedly connected to the back side of the pipe. A sealing groove two is opened on the back side of the contact ring. The sealing groove two is adapted to the sealing ring two.

[0008] Optionally, a connecting ring is fixedly connected to the inner wall of the pipe. A connecting groove is provided on the back of the connecting ring, which is adapted to the fixing ring. The front of the connecting ring is fixedly connected to the back of the connecting block.

[0009] Optionally, the number of the card blocks is several, and the several card blocks are arranged in a ring array. A second connecting ring is provided inside the pipe, and the front of the several connecting blocks is fixedly connected to the back of the second connecting ring.

[0010] Optionally, the back of the connecting ring is fixedly connected to the front of several of the card blocks, and a fixing groove is provided on the left side of the fixing rod.

[0011] Optionally, the inner wall of the fixing groove is fixedly connected to the outer wall of the second fixing ring, and the right side of the fixing rod located on the left side is fixedly connected to the first fixing column.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. This utility model includes connecting blocks, slot one, slot two, and other components. Since slot one and slot two are respectively provided on the left and right sides of the connecting blocks, several connecting blocks can be spliced ​​into an arc shape that fits the pipe. The slot blocks are inserted into the slots formed by slot one and slot two, ensuring a tight connection between the connecting blocks. Simultaneously, the fixing rings two fixed to the inner walls of the connecting blocks provide a secondary fixing effect, preventing displacement or loosening of the connecting blocks. Several fixing rods connect two fixing rings two, providing support to the inner wall of the pipe while fixing the fixing rings two. This allows the device to withstand large external loads, and the structure effectively disperses and transmits these external forces, preventing the pipe from deforming or cracking due to excessive pressure.

[0014] 2. This utility model, by incorporating components such as a second sealing ring, a first sealing groove, and a contact ring, allows two pipes to be joined end-to-end. Since the second sealing ring is located on the front of the pipe, and both the front and back of the first sealing ring are fixedly connected to the second sealing ring, the second sealing ring can be secured inside the first sealing groove. Simultaneously, the second sealing ring on the other side will engage with the second sealing groove on the back of the contact ring. The protruding part of the first sealing ring seals the point where the two pipes meet, preventing leakage during water transport. Furthermore, when the first fixing ring is joined end-to-end, it inserts into the connecting groove of the first connecting ring, thus providing a double-layered leakage protection structure. The first sealing ring and the first connecting ring also act as shock absorbers during the movement and installation of multiple jacking pipes, protecting the pipes. This device prevents leakage and reduces damage to the pipes during movement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the structure of the sealing ring one in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the contact ring structure in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the connecting block in an embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the structure of the fixed ring two in the embodiment of this application.

[0020] Reference numerals: 1. Pipe; 11. Fixing ring one; 2. Sealing ring one; 21. Sealing ring two; 211. Sealing groove one; 22. Contact ring; 221. Sealing groove two; 23. Connecting ring one; 231. Connecting groove; 3. Connecting block; 31. Slot one; 311. Slot block; 32. Slot two; 33. Connecting ring two; 34. Fixing ring two; 35. Fixing rod; 351. Fixing groove; 352. Fixing post one; 353. Fixing post two. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] This application discloses a pipe jacking structure for high internal water pressure water conveyance tunnels. For example... Figure 1 , Figure 4 , Figure 5 As shown, the system includes a pipe 1, a fixing ring 11 fixedly connected to the front of the pipe 1, a connecting block 3 in contact with the inner wall of the pipe 1, a slot 31 on the right side of the connecting block 3, a slot 32 on the left side of the connecting block 3, a locking block 311 fixedly connected to the inner wall of the slot 31, and several connecting blocks 3 arranged in a ring array. The ring array of the locking blocks 311 can disperse the pressure, allowing the pipe 1 to withstand greater pressure.

[0023] In this embodiment, a second fixing ring 34 is provided on the inner wall of the pipe 1, and the inner walls of several connecting blocks 3 are fixedly connected to the outer wall of the second fixing ring 34. A fixing rod 35 is provided inside the pipe 1. The number of fixing rods 35 is several, and the several fixing rods 35 are arranged in a ring array. The top of the fixing rod 35 at the bottom is fixedly connected to a second fixing column 353. The second fixing ring 34 is welded to the connecting blocks 3. At the same time, the second fixing ring 34 can not only fix and constrain the connecting blocks 3, but also support them.

[0024] Please see Figure 2 As shown, a sealing groove 211 is provided on the front of the pipe 1, a sealing ring 2 is in contact with the front of the pipe 1, and a sealing ring 21 is fixedly connected to the front of the sealing ring 2. The sealing groove 211 and the sealing ring 21 are in a tight fit.

[0025] Please see Figure 2 As shown, there are two sealing rings 21, which are symmetrically arranged around sealing ring 2. The inner wall of sealing groove 211 is in contact with the outer wall of sealing ring 21 located on the back. A contact ring 22 is fixedly connected to the back of pipe 1. Sealing ring 2, sealing ring 21 and contact ring 22 are all made of nitrile rubber, which has good oil resistance, water resistance and chemical corrosion resistance. It also has high elasticity and wear resistance, and can resist the erosion of chemicals such as acids and alkalis to a certain extent. It is suitable for sealing various media and is often used for sealing pipes and equipment.

[0026] Please see Figure 3 As shown, a sealing groove 221 is provided on the back of the contact ring 22, which is adapted to the sealing ring 21. A connecting ring 23 is fixedly connected to the inner wall of the pipe 1, and a connecting groove 231 is provided on the back of the connecting ring 23, which is adapted to the fixing ring 11.

[0027] Please see Figure 4 As shown, the front of the connecting ring 23 is fixedly connected to the back of the connecting block 3. There are several locking blocks 311, which are arranged in a ring array. The pipe 1 is equipped with a connecting ring 33.

[0028] Please see Figure 4 , Figure 5 As shown, the front of several connecting blocks 3 are fixedly connected to the back of connecting ring 2 33. The back of connecting ring 2 33 is fixedly connected to the front of several locking blocks 311. A fixing groove 351 is provided on the left side of the fixing rod 35. The inner wall of the fixing groove 351 is fixedly connected to the outer wall of fixing ring 2 34. A fixing post 1 352 is fixedly connected to the right side of the fixing rod 35 on the left side. The setting of the fixing rod 35 can fix the fixing ring 2 34.

[0029] The implementation principle of a pipe jacking structure for a high internal water pressure water conveyance tunnel according to an embodiment of this application is as follows: Since the left and right sides of the connecting block 3 are respectively provided with slot 1 31 and slot 2 32, and several connecting blocks 3 can be spliced ​​into an arc shape adapted to the pipe 1, the slot 311 is inserted into the slot formed by slot 1 31 and slot 2 32, making the several connecting blocks 3 tightly connected. Simultaneously, the fixing rings 2 34 fixed to the inner walls of the several connecting blocks 3 can provide a secondary fixing effect, preventing displacement or loosening of the several connecting blocks 3. Several fixing rods 35 can connect the two fixing rings 2 34. Under the action of the fixing rods 2 353, the inner wall of the pipe 1 can be supported while fixing the fixing rings 2 34, enabling the device to withstand large external loads. Furthermore, this structure can effectively disperse and transmit these external forces, preventing the pipe from deforming or rupturing due to excessive pressure. To prevent leaks, after connecting the two pipes 1 end to end, a second sealing ring 21 is provided on the front of pipe 1. Simultaneously, sealing ring 21 is fixedly connected to both the front and back of the first sealing ring 2. This allows the second sealing ring 21 to engage inside the first sealing groove 211. At the same time, the second sealing ring 21 on the other side engages in the second sealing groove 221 on the back of the contact ring 22. The protruding part of the first sealing ring 2 seals the point where the two pipes 1 meet, preventing leaks during water transport. Furthermore, when connecting the two pipes, the first fixing ring 11 inserts into the connecting groove 231 of the first connecting ring 23. This provides a double-layer leak protection structure. The sealing ring 2 and the connecting ring 23 also act as shock absorbers during the moving and installation of multiple jacking pipes, protecting the pipes. This device prevents leaks and reduces damage to the pipes during movement.

[0030] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe jacking structure for a high internal water pressure water conveyance tunnel comprising a pipe (1), characterised in that: The pipeline (1) is fixedly connected with a fixing ring one (11), the pipeline (1) is in contact with a connecting block (3), the connecting block (3) is provided with a clamping groove one (31) on the right side, the connecting block (3) is provided with a clamping groove two (32) on the left side, the clamping groove one (31) is fixedly connected with a clamping block (311), the number of the connecting block (3) is several, and the connecting block (3) is arranged in an annular array, the pipeline (1) is provided with a fixing ring two (34), the inner wall of the connecting block (3) is fixedly connected with the outer wall of the fixing ring two (34), the pipeline (1) is provided with a fixing rod (35), the number of the fixing rod (35) is several, the fixing rod (35) is arranged in an annular array, and the fixing rod (35) at the bottom is fixedly connected with a fixing column two (353) at the top.

2. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 1, characterized in that: The pipeline (1) is provided with a sealing groove one (211) on the front surface, the pipeline (1) is in contact with a sealing ring one (2), the sealing ring one (2) is fixedly connected with a sealing ring two (21) on the front surface, and the number of the sealing ring two (21) is two.

3. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 2, characterised in that: The two sealing ring two (21) is symmetrically arranged with the sealing ring one (2) as the center, the inner wall of the sealing groove one (211) is in contact with the outer wall of the sealing ring two (21) located on the back, the pipeline (1) is fixedly connected with a contact ring (22) on the back, the contact ring (22) is provided with a sealing groove two (221) on the back, and the sealing groove two (221) is matched with the sealing ring two (21).

4. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 1, characterized in that: The pipeline (1) is fixedly connected with a connecting ring one (23), the connecting ring one (23) is provided with a connecting groove (231) on the back, the connecting groove (231) is matched with the fixing ring one (11), and the connecting ring one (23) is fixedly connected with the connecting block (3) on the front surface.

5. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 1, characterized in that: The number of the clamping block (311) is several, the clamping block (311) is arranged in an annular array, the pipeline (1) is provided with a connecting ring two (33), and the front surface of the connecting block (3) is fixedly connected with the back surface of the connecting ring two (33).

6. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 5, characterised in that: The back surface of the connecting ring two (33) is fixedly connected with the front surface of the clamping block (311), and the fixing rod (35) is provided with a fixing groove (351) on the left side.

7. A pipe jacking structure for a high internal water pressure water conveyance tunnel according to claim 6, characterised in that: The inner wall of the fixing groove (351) is fixedly connected with the outer wall of the fixing ring two (34), and the fixing rod (35) on the left side is fixedly connected with a fixing column one (352) on the right side.

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