Immersed roadbed structure based on repeated seepage effect

Abstract

The invention relates to the technical field of water-immersed roadbeds, and particularly discloses a water-immersed roadbed structure based on the action of repeated seepage, the water-immersed roadbed structure comprises a roadbed body laid on a foundation, drainage ditches are arranged on the two sides of the roadbed body, and drainage pipes are embedded in the foundation; the drainage pipe is detachably provided with a first drainage pipe communicated with the drainage pipe, the drainage ditch is detachably provided with a second drainage pipe communicated with the drainage ditch, and the input end of the first drainage pipe is detachably connected with the output end of the second drainage pipe through a locking mechanism. By arranging the first drainage tube, the second drainage tube and the locking mechanism, when the first drainage tube and / or the second drainage tube are / is damaged and need to be maintained, the drainage tubes can be detached, replaced and installed conveniently, efficiently and correspondingly, stability and reliability are achieved, and the maintenance cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of submerged roadbeds, and in particular to a submerged roadbed structure based on repeated seepage action. Background Art

[0002] The roadbed is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the roadbed is to provide the necessary conditions for track or road surface laying and train or vehicle operation, and to bear the static and dynamic loads of the track and locomotive vehicles or road surface and traffic loads, while transmitting and diffusing the loads deep into the foundation. In the longitudinal section, the roadbed must ensure the required elevation of the line; in the plane, the roadbed is connected with bridges and tunnels to form a complete through line. In civil engineering, the roadbed occupies an important position in terms of construction quantity, land area and investment.

[0003] The drainage ditch and drainage pipe of the submerged roadbed structure are mostly connected by a drainage pipe. After long-term use, the drainage pipe is damaged and needs maintenance or replacement to ensure that the water in the drainage ditch can smoothly enter the drainage pipe and be quickly discharged, so as to avoid rainwater staying on the roadbed for a long time and causing repeated seepage and damage to the roadbed.

[0004] However, the drainage pipes in the prior art are mostly integrated structures, which are inconvenient to disassemble and replace and have high maintenance costs. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a submerged roadbed structure based on repeated seepage action, so as to solve the technical problems in the prior art that the drainage pipes in the prior art are mostly integrated structures, which are inconvenient to disassemble and replace and have high maintenance costs.

[0006] The present invention is implemented by the following technical solutions:

[0007] A submerged roadbed structure based on repeated seepage, characterized in that it comprises a roadbed body laid on a foundation, drainage ditches are arranged on both sides of the roadbed body, and a drainage pipe is buried in the foundation;

[0008] The drain pipe is detachably provided with a first drainage pipe connected with the drain pipe, the drain ditch is detachably provided with a second drainage pipe connected with the drain ditch, and the first drainage pipe input end and the second drainage pipe output end are detachably connected via a locking mechanism.

[0009] Further, the locking mechanism comprises a butt joint tube fixed to the input end of the first drainage tube, and the input end of the butt joint tube can be inserted into the output end of the second drainage tube;

[0010] A movable ring which can move along its axial direction is provided on the outer peripheral side of the first drainage tube for sliding, and a locking ring which is locked and matched with the outer wall of the second drainage tube is provided on the outer peripheral side of the movable ring for rotation.

[0011] Furthermore, an inner circumference of the movable ring is provided with an internal thread, and an outer circumference of the second drainage tube is provided with an external thread matching the internal thread.

[0012] Further, an insertion rod is axially arranged on the output end of the first drainage tube, a fixing plate is arranged inside the wall of the second drainage tube, a pressure plate parallel to the insertion rod is elastically arranged on the side of the fixing plate facing the insertion rod, and one side of the pressure plate is pressed and matched with the free end of the insertion rod;

[0013] An annular groove is provided on the inner circumference of the second drainage tube, an elastic layer capable of completely covering the groove opening is provided on the annular groove, and a pressure area is formed between the elastic layer and the annular groove;

[0014] A plug groove is provided inside the wall of the second drainage pipe, a piston is arranged in the plug groove, one side of the piston is fixedly connected to the pressure plate through a connecting rod, hydraulic oil is contained in the plug groove and the pressure area, and a second clamping groove is provided circumferentially around the outer peripheral side of the butt tube, and the hydraulic oil in the plug groove is pressed into the pressure area by adjusting the position of the piston in the plug groove, so that the elastic layer expands and deforms and is sealed and clamped with the second clamping groove.

[0015] Further, a positioning tube is provided on the input end of the second drainage tube, a mesh slot for placing a filter screen is coaxially provided on one side of the input end of the positioning tube, a clamping block is provided on the outer wall of the filter screen, and a first clamping slot for clamping with the clamping block is provided on the outer wall of the input end of the positioning tube;

[0016] A first cylinder is rotatably arranged inside the wall of the positioning tube, a screw that can move along its axial direction is slidably clamped at the centrifugal end of the first cylinder, and a locking hole that matches with the screw thread is opened on the centrifugal side of the clamping block;

[0017] The centrifugal end of the screw is connected to the inner wall of the first cylinder through a second spring; the second spring can be used to tighten the free end of the screw against the lock hole;

[0018] A first bevel tooth is provided at the centrifugal end of the first cylinder, a second cylinder parallel to the axial direction of the first drainage tube is rotatably inserted on the fixed plate, a rotating shaft is concentrically fixed at one end of the second cylinder, a second bevel tooth matching the first bevel tooth is provided at one end of the rotating shaft, a spiral groove is axially opened inside the other end of the second cylinder, a transmission rod is fixed on one side of the pressure plate, the transmission rod is inserted inside the other end of the second cylinder, and a protrusion that slides, frictionally and squeezes with the groove is provided on the outer wall of the transmission rod.

[0019] Furthermore, an anti-seepage layer and a gravel layer are laid in sequence from bottom to top on the top of the road base body, and slopes for guidance are arranged on both sides of the road base body.

[0020] Furthermore, a reinforcement layer and a tamping layer are sequentially arranged between the foundation and the roadbed body from bottom to top.

[0021] Furthermore, the butt joint tube is concentrically fixed to the input end of the first drainage tube, the inner diameter of the butt joint tube is the same as the inner diameter of the first drainage tube, and the outer diameter of the butt joint tube is smaller than the inner diameter of the output end of the second drainage tube.

[0022] Furthermore, the positioning tube is concentrically arranged at the input end of the second drainage tube, and its inner diameter is smaller than the inner diameter of the second drainage tube, and its outer diameter is larger than the outer diameter of the second drainage tube.

[0023] Furthermore, a first slot for inserting the second drainage pipe is provided on the side wall of the drainage ditch; and a second slot for inserting the positioning pipe is provided on the inner wall of the drainage ditch.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The submerged roadbed structure under repeated seepage action of the present invention, by arranging a first drainage pipe, a second drainage pipe and a locking mechanism, can conveniently and efficiently and correspondingly complete the removal and installation of the drainage pipe when the first drainage pipe and / or the second drainage pipe is damaged and needs maintenance. It is stable, reliable and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure of a first drainage pipe on a middle drainage pipe and a second drainage pipe on a drainage ditch in a docking state;

[0028] Figure 3 for Figure 2 Schematic diagram of the partial cross-section structure of the middle drainage ditch;

[0029] Figure 4 for Figure 2 A schematic diagram of a partial cross-sectional structure of the first drainage tube in a non-jointed state;

[0030] Figure 5 for Figure 2 A schematic cross-sectional structure diagram of the second drainage tube in a non-jointed state;

[0031] Figure 6 for Figure 2 Structural schematic diagram of the middle filter and the card block in a non-jointed state;

[0032] Figure 7 for Figure 2 The enlarged structural diagram at A in the middle;

[0033] Figure 8 for Figure 2 Schematic diagram of the enlarged structure at point B.

[0034] Description: 1. Foundation; 2. Strengthening layer; 3. Ramming layer; 4. Road base body; 5. Anti-seepage layer; 6. Gravel layer; 7. Drainage ditch; 8. Drainage pipe; 9. First drainage pipe; 10. Butt pipe; 11. Second drainage pipe; 12. Positioning pipe; 13. First slot; 14. Second slot; 15. Filter; 16. Net slot; 17. Block; 18. First slot; 19. Lock hole; 20. First cylinder ; 21. Screw; 22. First bevel gear; 23. Second bevel gear; 24. Rotating shaft; 25. Second cylinder; 26. Groove; 27. Transmission rod; 28. Bump; 29. ​​Fixed plate; 30. Insert rod; 31. Insert hole; 32. Pressure plate; 33. Telescopic rod; 34. Plug groove; 35. Piston; 36. Annular groove; 37. Elastic layer; 38. Second slot; 39. Moving ring; 40. Lock ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] It should be noted that the embodiments of the present invention and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1 to 8As shown, a submerged roadbed structure based on repeated seepage action includes a roadbed body 4 laid on a foundation 1, an anti-seepage layer 5 and a gravel layer 6 are laid on the top of the roadbed body 4 from bottom to top, two drainage ditches 7 are opened on both sides of the width direction of the roadbed body 4 on the top of the foundation 1, and are parallel to the extension direction of the roadbed body 4. A drainage pipe 8 is buried in the foundation 1, and a first drainage pipe 9 connected to the drainage pipe 8 is detachably provided on the drainage pipe 8, and a pipe connector (not shown) is provided on the drainage pipe 8, which is screwed to the output end of the first drainage pipe 9 and sealed. The pipe connector is a prior art.

[0039] A second drainage pipe 11 connected thereto is detachably provided on the drainage ditch 7, and the input end of the first drainage pipe 9 is connected to the output end of the second drainage pipe 11 by a locking mechanism, so as to facilitate the disassembly, assembly and maintenance of the first drainage pipe 9 and the second drainage pipe 11 and keep the connection between the two stable.

[0040] The anti-seepage layer 5 in this embodiment can be made of geotextile or waterproof material to prevent moisture from penetrating into the road base body 4. The material and thickness of the anti-seepage layer 5 should be selected and determined according to actual conditions.

[0041] Both sides of the road base body 4 in the width direction have slopes (not shown) that can guide water to the corresponding drainage ditches 7.

[0042] A reinforcement layer 2 and a tamping layer 3 are arranged in sequence from bottom to top between the foundation 1 and the roadbed body 4.

[0043] A first slot 13 for the second drainage pipe 11 to be inserted through is provided on the side wall of the drainage ditch 7, so as to facilitate the initial installation and positioning of the second drainage pipe 11 on the side wall of the drainage ditch 7.

[0044] The locking mechanism includes a docking tube 10 concentrically fixed on the input end of the first drainage tube 9. The inner diameter of the docking tube 10 is the same as the inner diameter of the first drainage tube 9. The outer diameter of the docking tube 10 is smaller than the inner diameter of the output end of the second drainage tube 11. The input end of the docking tube 10 can be inserted into the output end of the second drainage tube 11 to achieve preliminary docking between the first drainage tube 9 and the second drainage tube 11.

[0045] A positioning tube 12 is concentrically arranged on the input end of the second drainage tube 11. The inner diameter of the positioning tube 12 is smaller than the inner diameter of the second drainage tube 11, and the outer diameter of the positioning tube 12 is larger than the outer diameter of the second drainage tube 11. A second slot 14 for inserting the positioning tube 12 is opened on the inner side wall of the drainage ditch 7 to facilitate the initial placement of the second drainage tube 11 on the side wall of the drainage ditch 7.

[0046] A filter screen 15 is provided at the input end of the positioning pipe 12 to filter out impurities entering the drain pipe 8 to avoid blockage.

[0047] A movable ring 39 that can move along its axial direction is slidably clamped on the outer peripheral side of the first drainage tube 9 , and a locking ring 40 that locks and cooperates with the outer wall of the second drainage tube 11 is rotatably clamped on the outer peripheral side of the movable ring 39 .

[0048] Specifically, an internal thread (not shown) is arranged on the inner circumference of the movable ring 39 , and an external thread (not shown) matching the internal thread is arranged on the outer circumference of the second drainage tube 11 .

[0049] In this embodiment, after the first drainage tube 9 and the second drainage tube 11 are initially docked through the docking tube 10, the movable ring 39 is pushed toward the second drainage tube 11, and then the locking ring 40 is rotated to be threadedly engaged with the second drainage tube 11, thereby achieving locking and fixation between the first drainage tube 9 and the second drainage tube 11.

[0050] The output end of the first drainage tube 9 is axially provided with an insertion rod 30, and the output end outer wall of the second drainage tube 11 is provided with an insertion hole 31 for the insertion rod 30 to extend into the tube wall. A fixing plate 29 is provided inside the tube wall of the second drainage tube 11.

[0051] A pressure plate 32 parallel to the fixing plate 29 is elastically provided on one side of the fixing plate 29 facing the insertion rod 30 . A telescopic rod 33 is provided between the fixing plate 29 and the pressure plate 32 . A first spring is sleeved on the outer side of the telescopic rod 33 .

[0052] One side of the pressure plate 32 is pressed against the free end of the insertion rod 30 , and when the insertion rod 30 is inserted into the insertion hole 31 and presses the pressure plate 32 , the pressure plate 32 can be pushed to move synchronously. At this time, the telescopic rod 33 and the first spring are both in a compressed deformation state.

[0053] The inner circumference of the second drainage tube 11 is provided with an annular groove 36, on which an elastic layer 37 is provided to completely cover the groove opening, and the elastic layer 37 may be an elastic rubber layer. A pressure area (not shown) is formed between the elastic layer 37 and the annular groove 36.

[0054] A plug groove 34 is provided inside the wall of the second drainage tube 11, and a piston 35 is arranged in the plug groove 34. One side of the piston 35 is fixedly connected to the pressure plate 32 through a connecting rod. Hydraulic oil (not marked) is contained in the plug groove 34 and the pressure area. A second clamping groove 38 is circumferentially provided on the outer peripheral side of the docking tube 10. By adjusting the position of the piston 35 in the plug groove 34, the hydraulic oil in the plug groove 34 is pressed into the pressure area, so that the elastic layer 37 expands and deforms to be sealed and clamped with the second clamping groove 38.

[0055] When the pressure plate 32 moves under pressure, the piston 35 can be pushed by the connecting rod to press the hydraulic oil in the plug groove 34 into the pressure area, so that the elastic layer 37 expands and deforms to be sealed and engaged with the second groove 38, which not only seals the first drainage tube 9 and the second drainage tube 11, but also further realizes the locking and fixation between the first drainage tube 9 and the second drainage tube 11.

[0056] Example 2

[0057] The present embodiment is an improvement on the embodiment 1. A mesh groove 16 for placing the filter screen 15 is concentrically provided on one side of the input end of the positioning tube 12. A clamping block 17 is provided on the outer wall of the filter screen 15. A first clamping groove 18 for clamping with the clamping block 17 is provided on the outer wall of the input end of the positioning tube 12.

[0058] A first cylinder 20 is rotatably arranged inside the wall of the positioning tube 12 , and a screw 21 that can move along its axial direction is slidably clamped on the centrifugal end of the first cylinder 20 , and a locking hole 19 that is threadably matched with the screw 21 is opened on the centrifugal side of the clamping block 17 .

[0059] The centrifugal end of the screw 21 is also connected to the inner wall of the first cylinder 20 by a second spring (not shown). The second spring can help the free end of the screw 21 to press against the lock hole 19 so that the screw 21 can be effectively screwed into the lock hole 19. The centrifugal end of the first cylinder 20 is provided with a first bevel gear 22, and a second cylinder 25 parallel to the axial direction of the first drainage tube 9 is rotatably inserted on the fixed plate 29, a rotating shaft 24 is concentrically fixed at one end of the second cylinder 25, and a second bevel gear 23 matching the first bevel gear 22 is provided at one end of the rotating shaft 24, and a spiral groove 26 is axially opened inside the other end of the second cylinder 25, and a transmission rod 27 is fixed on one side of the pressure plate 32, and the transmission rod 27 is inserted inside the other end of the second cylinder 25, and a convex block 28 that slides, rubs and presses with the groove 26 is provided on the outer wall of the transmission rod 27.

[0060] When the pressure plate 32 is pressed and moved, the transmission rod 27 can also be pushed to drive the protrusion 28 to rub and squeeze the spiral groove 26, forcing the second cylinder 25 to rotate unidirectionally on the fixing plate 29, which will cause the second cylinder 25 to drive the rotating shaft 24, the second bevel gear 23, the first bevel gear 22, the first cylinder 20 and the screw 21 connected to the opening of the lock hole 19 to rotate synchronously, so that the screw 21 can be rotated and screwed into the block 17, completing the installation of the filter 15 on the positioning tube 12, which is convenient for disassembly and maintenance, and has a single installation step to prevent wrong installation, which is stable and efficient.

[0061] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A submerged roadbed structure based on repeated seepage, characterized in that: It comprises a road base body laid on a foundation, drainage ditches are arranged on both sides of the road base body, and a drainage pipe is buried in the foundation; The drain pipe is detachably provided with a first drainage pipe connected with the drain pipe, the drain ditch is detachably provided with a second drainage pipe connected with the drain ditch, and the first drainage pipe input end and the second drainage pipe output end are detachably connected via a locking mechanism.

2. The submerged roadbed structure based on repeated seepage according to claim 1 is characterized in that: The locking mechanism comprises a butt joint tube fixed to the input end of the first drainage tube, and the input end of the butt joint tube can be inserted into the output end of the second drainage tube; A movable ring which can move along its axial direction is provided on the outer peripheral side of the first drainage tube for sliding, and a locking ring which is locked and matched with the outer wall of the second drainage tube is provided on the outer peripheral side of the movable ring for rotation.

3. The submerged roadbed structure based on repeated seepage according to claim 2 is characterized in that: An internal thread is arranged on the inner circumference of the movable ring, and an external thread matching the internal thread is arranged on the outer circumference of the second drainage tube.

4. A submerged roadbed structure based on repeated seepage according to claim 2 or 3, characterized in that: An insertion rod is axially arranged on the output end of the first drainage tube, a fixing plate is arranged inside the wall of the second drainage tube, a pressure plate parallel to the insertion rod is elastically arranged on the side of the fixing plate facing the insertion rod, and one side of the pressure plate is pressed and matched with the free end of the insertion rod; An annular groove is provided on the inner circumference of the second drainage tube, an elastic layer capable of completely covering the groove opening is provided on the annular groove, and a pressure area is formed between the elastic layer and the annular groove; A plug groove is provided inside the wall of the second drainage pipe, a piston is arranged in the plug groove, one side of the piston is fixedly connected to the pressure plate through a connecting rod, hydraulic oil is contained in the plug groove and the pressure area, and a second clamping groove is provided circumferentially around the outer peripheral side of the butt tube, and the hydraulic oil in the plug groove is pressed into the pressure area by adjusting the position of the piston in the plug groove, so that the elastic layer expands and deforms and is sealed and clamped with the second clamping groove.

5. The submerged roadbed structure based on repeated seepage according to claim 4 is characterized in that: The second drainage tube input end is provided with a positioning tube, a mesh slot for placing a filter screen is coaxially opened on one side of the positioning tube input end, a clamping block is arranged on the outer wall of the filter screen, and a first clamping slot for clamping with the clamping block is arranged on the outer wall of the positioning tube input end; A first cylinder is rotatably arranged inside the wall of the positioning tube, a screw which can move axially is slidably clamped at the centrifugal end of the first cylinder, and a locking hole which matches with the screw thread is opened at the centrifugal side of the clamping block; The centrifugal end of the screw is connected to the inner wall of the first cylinder via a second spring; the second spring can be used to tighten the free end of the screw against the lock hole; A first bevel tooth is provided at the centrifugal end of the first cylinder, and a second cylinder parallel to the axial direction of the first drainage tube is rotatably inserted on the fixed plate, a rotating shaft is concentrically fixed at one end of the second cylinder, and a second bevel tooth matching the first bevel tooth is provided at one end of the rotating shaft, and a spiral groove is axially opened inside the other end of the second cylinder, a transmission rod is fixed on one side of the pressure plate, and the transmission rod is inserted inside the other end of the second cylinder, and a protrusion that slides, frictionally and extrudes into the groove is provided on the outer wall of the transmission rod.

6. The submerged roadbed structure based on repeated seepage as claimed in claim 1, characterized in that: An anti-seepage layer and a gravel layer are laid in sequence on the top of the road base body from bottom to top, and slopes for guidance are arranged on both sides of the road base body.

7. The submerged roadbed structure based on repeated seepage according to claim 1, characterized in that: A reinforcement layer and a tamping layer are sequentially arranged between the foundation and the road base body from bottom to top.

8. The submerged roadbed structure based on repeated seepage as claimed in claim 2, characterized in that: The butt joint tube is concentrically fixed at the input end of the first drainage tube, the inner diameter of the butt joint tube is the same as the inner diameter of the first drainage tube, and the outer diameter of the butt joint tube is smaller than the inner diameter of the output end of the second drainage tube.

9. The submerged roadbed structure based on repeated seepage according to claim 5, characterized in that: The positioning tube is concentrically arranged at the input end of the second drainage tube, and its inner diameter is smaller than the inner diameter of the second drainage tube. The outer diameter of the positioning tube is larger than the outer diameter of the second drainage tube.

10. The submerged roadbed structure based on repeated seepage according to claim 5, characterized in that: A first slot for inserting the second drainage pipe is provided on the side wall of the drainage ditch; a second slot for inserting the positioning pipe is provided on the inner side wall of the ditch body of the drainage ditch.

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