A intensive trench layout structure for underground pipelines

Abstract

The present invention discloses an underground pipeline intensive trench layout structure, which specifically relates to the technical field of urban pipeline construction, including a trench splicing piece, wherein the two ends of the trench splicing piece are respectively provided with a first plug-in portion and a second plug-in portion, and two adjacent trench splicing pieces can be spliced. The present invention provides the first plug-in portion and the second plug-in portion, and when two trench splicing pieces need to be spliced ​​and installed, the splicing joint of one trench splicing piece is inserted into the plug-in groove of the other trench splicing piece, so that the positions of the first splicing groove and the second splicing groove correspond to each other, forming a casting groove, and grouting is performed in the casting groove, and the splicing joint and the plug-in groove are sealed and fixed by the solidified mud, so as to prevent the relative displacement between the trench splicing pieces, thereby improving the stability and load-bearing capacity of the overall structure of the trench splicing piece.

Description

Technical Field

[0001] The present invention relates to the technical field of urban pipeline construction, and more specifically, to an intensive trench layout structure for underground pipelines. Background Art

[0002] By using an integrated pipeline corridor to lay pipelines, various pipelines such as communications, electricity, and drainage can be laid in a centralized manner, transforming the traditional "planar staggered layout" into a "three-dimensional centralized layout", improving the utilization efficiency of underground space and achieving an organic combination with underground space.

[0003] A Chinese patent with application number 201910654028.X discloses an urban underground integrated pipe gallery including a pipe gallery body, a connecting and fixing structure, a sealing structure and a shock-absorbing structure; by installing a sealing structure between two pipe gallery bodies, when rainwater penetrates into the connection gap between the two pipe gallery bodies, the sealing structure can be expanded by the rainwater, thereby achieving good sealing, thereby preventing rainwater from flowing into the interior of the pipe gallery body and causing damage to the wire pipes, and there will be no leakage, and the connecting and fixing structure can also act on the sealing structure while working, thereby making the sealing of the sealing structure better, and a shock-absorbing structure is also provided inside the pipe gallery body. Through the setting of the shock-absorbing structure, it can play a good shock-absorbing effect when large vehicles pass on the road, thereby preventing damage or even rupture of the connection of the pipe gallery body due to road vibration. Although the invention can achieve shock absorption and sealing effects, the tunnel splicing structure of the invention is relatively complex and has poor load-bearing capacity, and is prone to damage and relative displacement. It is more troublesome during production and splicing, which increases the difficulty of production and construction. In addition, the tunnel structure is prone to aging and failure after long-term use, which can easily lead to a decrease in sealing effect and water seepage.

[0004] The present invention provides an intensive trench layout structure for underground pipelines, aiming to solve the problems that the pipeline corridor has a complex structure, poor load-bearing capacity, is easily damaged and relatively displaced, and is easily aged and fails after long-term use, resulting in reduced sealing effect. Summary of the invention

[0005] The purpose of the present invention is to provide an intensive trench layout structure for underground pipelines to solve the problems proposed in the above background technology that the pipeline corridor has a complex structure, poor load-bearing capacity, is prone to damage and relative displacement, and is prone to aging and failure after long-term use, resulting in a decrease in sealing effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an underground pipeline intensive trench layout structure, comprising a trench splicing piece, a plurality of trench splicing pieces are spliced ​​into a trench layout structure, the two ends of the trench splicing piece are respectively provided with a first plug-in portion and a second plug-in portion, and two adjacent trench splicing pieces can be spliced; the first plug-in portion comprises a plug-in groove provided at one end of the trench splicing piece, the inner side of the plug-in groove is provided with a first splicing groove, the second plug-in portion comprises a splicing joint provided at the other end of the trench splicing piece away from the first plug-in portion, the outer side of the splicing joint is provided with a second splicing joint Groove; the splicing joint is adapted to the plug-in groove, and when the second plug-in portion of one of the trench splicing pieces is completely inserted into the first plug-in portion of the other trench splicing piece, the positions of the first splicing groove and the second splicing groove correspond to each other, and a casting groove is formed, and the splicing of two adjacent trench splicing pieces is sealed and fixed by grouting into the casting groove; first installation grooves are opened on both sides of the second splicing groove on the outside of the splicing joint, and expansion tubes are embedded in the two first installation grooves, and the expansion tubes are used to creep and tightly seal the mud in the casting groove during grouting.

[0007] Preferably, two second installation grooves are provided on the inner side of the plug-in groove. When the second plug-in portion of one of the trench joints is fully inserted into the first plug-in portion of the other trench joint, the two second installation grooves correspond to the positions of the two first installation grooves and form expansion grooves. Extrusion grooves connected to the casting groove are provided inside the two expansion grooves, and the two expansion tubes are connected to an external air supply device.

[0008] Preferably, guide grooves are provided on both sides of one end of the trench joint piece, guide blocks are fixedly connected on both sides of the other end of the trench joint piece, a first limiting groove is provided on the top of each guide groove, and a second limiting groove is provided on the top of each guide block in a through-shaped arrangement.

[0009] Preferably, when two adjacent trench joints are spliced, the two guide blocks of one trench joint can be inserted into the two guide grooves of the other trench joint, and when the two guide blocks are fully inserted into the corresponding guide grooves, the positions of the two first limit grooves correspond to the corresponding second limit grooves.

[0010] Preferably, the interior of the trench joint is divided into a water supply and communication compartment and a power compartment by a partition.

[0011] Preferably, a pipe bracket for installing a communication pipe is provided inside the water supply communication cabin, and a water supply pier for installing a water supply pipe is provided at the bottom of the water supply communication cabin.

[0012] Preferably, a cable bracket for installing power cables is provided inside the power compartment, and a water collection pit is provided at the bottom of the power compartment.

[0013] Preferably, ventilation slots for installing shutters are provided on the upper parts of both sides of the pipe trench joint.

[0014] Preferably, the upper part and the lower part of the partition are respectively provided with a communication groove for air communication and a drainage port for drainage.

[0015] Preferably, a cover plate is installed on the top of the trench joint piece above the water supply and communication cabin and the power cabin.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention provides the first plug-in portion and the second plug-in portion. When two trench splicing pieces need to be spliced ​​and installed, the splicing joint of one trench splicing piece is inserted into the plug-in groove of the other trench splicing piece, so that the positions of the first splicing groove and the second splicing groove correspond to each other, forming a casting groove, and grouting is performed in the casting groove. The splicing joint and the plug-in groove are fixed by the solidified mud, so that the splicing work between the trench splicing pieces can be completed quickly, the relative displacement between the trench splicing pieces can be prevented, the risk of water seepage in the splicing seam is reduced, and the on-site construction time and complexity are reduced, thereby improving the stability and load-bearing capacity of the overall structure of the trench splicing piece. The solidified mud can also play a sealing role.

[0018] The present invention provides an expansion tube. On the one hand, during the grouting process of the casting trough, the expansion tube can continuously peristalsize during the grouting process to guide the slurry during the grouting process, so that the slurry can flow smoothly in the casting trough. On the other hand, after the slurry fills the casting trough and returns to the grout, the vibration generated by the expansion tube can make the slurry flow better in the casting trough, fill every corner in the casting trough, and remove bubbles in the slurry, so that the slurry in the casting trough is more compact, thereby further improving the stability and sealing of the trench joints after splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the internal structure of the trench joint of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of the pipe trench splicing piece of the present invention.

[0021] Figure 3 It is a schematic diagram of splicing the pipe trench splicing parts of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the second plug-in portion of the present invention.

[0023] Figure 5 For the present invention Figure 4 A-section structure enlarged view.

[0024] Figure 6 This is a top-down cross-sectional view of the splicing slurry pouring of the pipe trench splicing parts of the present invention.

[0025] Figure 7 For the present invention Figure 6 Enlarged view of the structure of part B.

[0026] Figure 8 It is a schematic diagram of the expansion state of the expansion tube of the present invention.

[0027] Fig. 9 This is a cross-sectional view of the slurry pouring of the casting trough of the present invention.

[0028] Fig.10 It is a schematic diagram of the internal steel bar structure of the trench splicing piece of the present invention.

[0029] The accompanying drawings are marked as follows: 1. pipe trench joint; 11. partition; 12. water supply communication cabin; 13. power cabin; 14. communication pipeline; 15. pipeline support; 16. water supply pipeline; 17. water supply pier; 18. power cable; 19. cable support; 110. sump; 111. ventilation slot; 112. connecting slot; 113. drain outlet; 114. cover plate; 2. first plug-in part; 21. plug-in slot; 22. first splicing slot; 23. guide slot; 24. guide block; 25. first limiting slot; 26. second limiting slot; 3. second plug-in part; 31. splicing head; 32. second splicing slot; 33. casting slot; 34. first installation slot; 35. expansion pipe; 36. second installation slot; 37. expansion slot; 38. extrusion slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] refer to Figure 1 and Fig.10An intensive trench layout structure for underground pipelines according to an embodiment of the present invention comprises a trench splicing piece 1, which is a reinforced concrete structure. A plurality of trench splicing pieces 1 are spliced ​​into a trench layout structure. The interior of the trench splicing piece 1 is divided into a water supply communication cabin 12 and a power cabin 13 by a partition 11. A pipe support 15 for installing a communication pipe 14 is arranged inside the water supply communication cabin 12. A water supply pier 17 for installing a water supply pipe 16 is arranged at the bottom of the water supply communication cabin 12. A cable support 19 for installing a power cable 18 is arranged inside the power cabin 13. A sump 110 is provided at the bottom of the power cabin 13. Ventilation slots 111 for installing shutters are provided on the upper parts of both sides of the trench splicing piece 1. A communication slot 112 for air communication and a drainage port 113 for drainage are respectively provided on the upper and lower parts of the partition 11. A cover plate 114 is installed on the top of the trench splicing piece 1 above the water supply communication cabin 12 and the power cabin 13.

[0033] refer to Figure 2 - Figure 5 A first plug-in portion 2 and a second plug-in portion 3 are respectively provided at both ends of the trench splicing piece 1, and two adjacent trench splicing pieces 1 can be spliced. The first plug-in portion 2 includes a plug-in groove 21 opened at one end of the trench splicing piece 1, and a first splicing groove 22 is opened on the inner side of the plug-in groove 21. The second plug-in portion 3 includes a splicing joint 31 opened at the other end of the trench splicing piece 1 away from the first plug-in portion 2, and a second splicing groove 32 is opened on the outer side of the splicing joint 31.

[0034] The splicing joint 31 is adapted to the plug-in groove 21. When the second plug-in portion 3 of one trench splicing piece 1 is fully inserted into the first plug-in portion 2 of the other trench splicing piece 1, the positions of the first splicing groove 22 and the second splicing groove 32 correspond to each other, and a casting groove 33 is formed. The splicing of two adjacent trench splicing pieces 1 is sealed and fixed by grouting into the casting groove 33.

[0035] refer to Figure 2 - Figure 5 A guide groove 23 is provided on both sides of one end of the trench joint 1, and a guide block 24 is fixedly connected to both sides of the other end of the trench joint 1. A first limiting groove 25 is provided on the top of each guide groove 23, and a second limiting groove 26 is provided on the top of each guide block 24 in a through-shaped arrangement.

[0036] When two adjacent trench splicing pieces 1 are spliced, the two guide blocks 24 of one trench splicing piece 1 can be inserted into the two guide grooves 23 of the other trench splicing piece 1. When the two guide blocks 24 are fully inserted into the corresponding guide grooves 23, the positions of the two first limiting grooves 25 and the corresponding second limiting grooves 26 correspond.

[0037] When it is necessary to splice and install two trench splicing pieces 1, the trench splicing pieces 1 to be spliced ​​are hoisted to the designated installation position by a crane, so that the first plug-in portion 2 of one trench splicing piece 1 corresponds to the second plug-in portion 3 of the other trench splicing piece 1, so that the splicing joint 31 is inserted into the interior of the plug-in groove 21, and the two guide blocks 24 are inserted into the corresponding guide grooves 23. When the two guide blocks 24 are fully inserted into the corresponding guide grooves 23, the positions of the two first limiting grooves 25 and the corresponding second limiting grooves 26 correspond. At this time, pins can be inserted into the two first limiting grooves 25 and the two second limiting grooves 26 to fix the guide blocks 24 in the guide grooves 23, thereby temporarily fixing the two trench splicing pieces 1 to prevent the two trench splicing pieces 1 from moving during casting and fixing. The pins can be pulled out after the casting and fixing are completed.

[0038] After fixing, refer to Figure 6 , Figure 7 and Fig. 9 The first splicing groove 22 corresponds to the position of the second splicing groove 32, and a casting groove 33 is formed. At this time, grouting (i.e., injecting concrete) can be performed in the casting groove 33 through multiple splicing interfaces above the casting groove 33 until the mud returns from the casting groove 33. When the mud solidifies, it can play a role of a latch, thereby fixing the splicing joint 31 and the plug-in groove 21, so that the splicing work between the trench splicing pieces 1 can be completed quickly, preventing relative displacement between the trench splicing pieces 1, reducing the risk of water seepage in the splicing seam, and the solidified mud can also play a sealing role.

[0039] To sum up, through the arrangement of the first plug-in portion 2 and the second plug-in portion 3, when two trench splicing pieces 1 need to be spliced ​​and installed, the splicing joint 31 of one of the trench splicing pieces 1 is inserted into the plug-in groove 21 of the other trench splicing piece 1, so that the positions of the first splicing groove 22 and the second splicing groove 32 correspond to each other, forming a casting groove 33, and grouting is performed in the casting groove 33, and the splicing joint 31 and the plug-in groove 21 are fixed by the solidified mud, so that the splicing work between the trench splicing pieces 1 can be completed quickly, and relative displacement between the trench splicing pieces 1 can be prevented, the risk of water seepage in the splicing seams is reduced, and the on-site construction time and complexity are reduced, thereby improving the stability and load-bearing capacity of the overall structure of the trench splicing piece 1, and the solidified mud can also play a sealing role.

[0040] Embodiment 2

[0041] During the actual splicing process, when grouting is performed in the casting groove 33, due to the structure of the casting groove 33, the slurry cannot flow smoothly in the casting groove 33, and bubbles are generated in the slurry, causing the slurry in the casting groove 33 to be not compact enough, thereby affecting the stability and sealing of the trench splicing piece 1 after splicing. Therefore, this embodiment improves the device described in the above embodiment.

[0042] refer to Figure 5 - Figure 8 The outside of the splicing joint 31 is provided with first mounting grooves 34 on both sides of the second splicing groove 32, and expansion tubes 35 are embedded in the two first mounting grooves 34. The expansion tubes 35 are used to creep and tightly seal the mud in the casting groove 33 during grouting. Two second mounting grooves 36 are provided on the inner side of the plug-in groove 21. When the second plug-in part 3 of one of the pipe trench splicing pieces 1 is fully inserted into the first plug-in part 2 of the other pipe trench splicing piece 1, the two second mounting grooves 36 correspond to the positions of the two first mounting grooves 34, and expansion grooves 37 are formed. Extrusion grooves 38 connected to the casting groove 33 are provided inside the two expansion grooves 37, and the two expansion tubes 35 are connected to the external air supply device.

[0043] In actual operation, the external air supply device is started while the grouting of the casting trough 33 is in progress, and air is injected and sucked into the expansion tube 35 through the external air supply device, so that the expansion tube 35 expands and contracts in the expansion trough 37. Figure 8 During the expansion process of the expansion tube 35, it will be squeezed into the interior of the casting groove 33 through the extrusion groove 38 and come into contact with the mud during the casting process. During the contraction process of the expansion tube 35, it will return to the expansion groove 37, so that the expansion tube 35 can achieve the purpose of creeping. Through the continuous creeping of the expansion tube 35 during the grouting process, the creeping extrusion of the mud during the grouting is guided, so that the mud can flow smoothly in the casting groove 33.

[0044] When the mud fills the casting trough 33 and returns, there may be bubbles in the mud in the casting trough 33. At this time, the external air supply device is controlled to quickly inject and absorb air into the expansion tube 35, so that the expansion tube 35 produces a vibration effect. The vibration generated by the expansion tube 35 makes the mud flow better in the casting trough 33, filling every corner in the casting trough 33, and eliminating the bubbles in the mud, so that the mud in the casting trough 33 is more compact.

[0045] When the expansion tube 35 vibrates to make the mud in the casting trough 33 more compact, the mud height in the casting trough 33 will decrease due to the disappearance of bubbles and the tighter mud. The expansion tube 35 is continuously expanded by controlling the external air supply device to inject air and maintain pressure. At this time, the casting trough 33 can be supplemented with grout through the joint above the casting trough 33 again until the mud returns from the casting trough 33 again. The expansion tube 35 can be repeatedly vibrated and supplemented with grout to make the mud in the casting trough 33 more substantial, thereby further improving the stability and sealing of the trench joint 1 after splicing.

[0046] When the slurry in the casting trough 33 solidifies, a sealing grouting liquid (such as polyurea grouting liquid) can be injected into the expansion tube 35 by high pressure, so that the expansion tube 35 expands to achieve a sealing effect. After the expansion tube 35 is aged and damaged, the sealing grouting liquid can flow out from the damaged part to seal, thereby further improving the sealing effect.

[0047] To sum up, through the arrangement of the expansion tube 35, on the one hand, during the grouting process of the casting trough 33, the continuous peristalsis of the expansion tube 35 during the grouting process can guide the slurry during grouting by peristaltic extrusion, so that the slurry can flow smoothly in the casting trough 33; on the other hand, after the mud fills the casting trough 33 and returns to the grout, the vibration generated by the expansion tube 35 can make the slurry flow better in the casting trough 33, fill every corner in the casting trough 33, and remove the bubbles in the mud, so that the slurry in the casting trough 33 is more compact, thereby further improving the stability and sealing of the trench joint 1 after splicing.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An underground pipeline intensive trench layout structure, comprising a trench splicing piece (1), wherein a plurality of trench splicing pieces (1) are spliced ​​together to form a trench layout structure, characterized in that: The two ends of the pipe trench splicing piece (1) are respectively provided with a first plug-in portion (2) and a second plug-in portion (3), and two adjacent pipe trench splicing pieces (1) can be spliced; The first plug-in portion (2) comprises a plug-in groove (21) provided at one end of the pipe trench splicing piece (1), a first splicing groove (22) being provided on the inner side of the plug-in groove (21), and the second plug-in portion (3) comprises a splicing joint (31) provided at the other end of the pipe trench splicing piece (1) away from the first plug-in portion (2), a second splicing groove (32) being provided on the outer side of the splicing joint (31); The splicing joint (31) is adapted to the plug-in groove (21); when the second plug-in portion (3) of one trench splicing piece (1) is completely inserted into the first plug-in portion (2) of another trench splicing piece (1), the first splicing groove (22) corresponds to the position of the second splicing groove (32), and a casting groove (33) is formed. The splicing of two adjacent trench splicing pieces (1) is sealed and fixed by grouting into the casting groove (33); The outside of the splicing joint (31) is provided with first installation grooves (34) on both sides of the second splicing groove (32), and expansion tubes (35) are embedded in the two first installation grooves (34), and the expansion tubes (35) are used to creep and tightly seal the slurry in the casting groove (33) during grouting; Two second installation grooves (36) are provided on the inner side of the plug-in groove (21); when the second plug-in portion (3) of one of the pipe trench splicing pieces (1) is completely inserted into the first plug-in portion (2) of the other pipe trench splicing piece (1), the two second installation grooves (36) correspond to the positions of the two first installation grooves (34) and form an expansion groove (37); an extrusion groove (38) connected to the casting groove (33) is provided inside the two expansion grooves (37); and the two expansion pipes (35) are connected to an external air supply device; During the grouting process of the casting trough (33), an external air supply device is simultaneously started, and air is injected and sucked into the expansion tube (35) through the external air supply device, so that the expansion tube (35) expands and contracts in the expansion trough (37); when the slurry fills the casting trough (33) and returns to the slurry, the external air supply device is controlled to quickly inject and suck air into the expansion tube (35), so that the expansion tube (35) produces a vibration effect; When the slurry in the casting trough (33) solidifies, a sealing grouting liquid can be injected into the interior of the expansion tube (35) by means of high pressure, so that the expansion tube (35) expands to achieve a sealing effect.

2. The underground pipeline intensive trench layout structure according to claim 1 is characterized by: Guide grooves (23) are provided on both sides of one end of the pipe trench splicing piece (1), and guide blocks (24) are fixedly connected to both sides of the other end of the pipe trench splicing piece (1). A first limiting groove (25) is provided on the top of each guide groove (23), and a second limiting groove (26) is provided on the top of each guide block (24) in a through-shaped arrangement.

3. The underground pipeline intensive trench layout structure according to claim 2 is characterized by: When two adjacent trench splicing pieces (1) are spliced, the two guide blocks (24) of one trench splicing piece (1) can be inserted into the two guide grooves (23) of the other trench splicing piece (1); when the two guide blocks (24) are fully inserted into the corresponding guide grooves (23), the positions of the two first limiting grooves (25) and the corresponding second limiting grooves (26) correspond.

4. The underground pipeline intensive trench layout structure according to claim 3 is characterized by: The interior of the pipe trench splicing piece (1) is divided into a water supply communication compartment (12) and a power compartment (13) by a partition plate (11).

5. The underground pipeline intensive trench layout structure according to claim 4 is characterized by: A pipe support (15) for installing a communication pipe (14) is provided inside the water supply communication cabin (12), and a water supply buttress (17) for installing a water supply pipe (16) is provided at the bottom of the water supply communication cabin (12).

6. The underground pipeline intensive trench layout structure according to claim 5 is characterized by: A cable bracket (19) for installing a power cable (18) is arranged inside the power cabin (13), and a water collection pit (110) is provided at the bottom of the power cabin (13).

7. The underground pipeline intensive trench layout structure according to claim 6 is characterized by: The upper parts of both sides of the pipe trench splicing piece (1) are provided with ventilation slots (111) for installing shutters.

8. The underground pipeline intensive trench layout structure according to claim 7 is characterized by: The upper part and the lower part of the partition plate (11) are respectively provided with a communication groove (112) for air communication and a drainage port (113) for drainage.

9. The underground pipeline intensive trench layout structure according to claim 8 is characterized by: A cover plate (114) is installed on the top of the trench joint (1) above the water supply communication cabin (12) and the power cabin (13).

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