Highway roadbed slope drainage structure
By introducing U-shaped frame filter components and confluence grooves into the drainage structure of highway subgrade slopes, the problem of debris blockage was solved, achieving efficient rainwater discharge and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG COMM CONSTR GRP CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-12
AI Technical Summary
Existing roadbed slope drainage structures are prone to blockage by debris, resulting in high maintenance frequency and low drainage efficiency.
A structure including a drainage channel, a diversion channel, a drainage pipe, and a maintenance well was designed. The drainage channel is equipped with a U-shaped frame filter assembly and a confluence groove for intercepting and filtering debris. Combined with a permeation tank and a retention chamber, the rainwater flow path is optimized.
It effectively avoids blockage by debris, reduces maintenance frequency, improves rainwater drainage efficiency, and alleviates drainage pressure through the infiltration channel, thereby improving the stability of the drainage system.
Smart Images
Figure CN224227593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway drainage technology, specifically a highway subgrade slope drainage structure. Background Technology
[0002] Highway subgrade slope drainage is used to intercept and guide surface water above or on the slope surface to a designated drainage path, preventing water from directly eroding the highway subgrade, protecting the subgrade from water damage, and ensuring the strength and stability of the subgrade.
[0003] However, existing highway subgrade slope drainage structures still have some shortcomings:
[0004] During highway construction, most roadbed slope drainage structures are pre-embedded between the highway and the slope. When it rains, they guide the rainwater left on the slope. Highway roadbed slope drainage structures usually adopt structures such as drainage channels, diversion channels, and drainage pipes. Among them, the cover plate above the drainage channel is used to intercept stones, leaves and other debris to prevent debris from entering. Since only one layer of interception structure is set, the interception effect of debris is poor, which can easily lead to blockage of drainage pipes and other structures, increasing the maintenance frequency of drainage pipes. Utility Model Content
[0005] In order to solve the above problems, the purpose of this utility model is to provide a drainage structure for highway subgrade slope.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a drainage structure for a highway subgrade slope, comprising a drainage channel, a diversion channel, a drainage pipe, and a maintenance well. One end of the diversion channel is connected to the inner cavity of the drainage channel, and the other end of the diversion channel is connected to the inner cavity of the drainage pipe. The drainage pipe passes through the maintenance well. A cover plate is movably provided at the open end of the drainage channel. A converging groove is provided on the upper surface of the cover plate. The converging groove is a trapezoidal structure with an upper opening larger than a bottom opening. A plurality of anti-fouling grooves are evenly distributed on the bottom wall of the converging groove.
[0007] The drainage channel is equipped with a filter assembly, which includes a U-shaped frame. The length and width of the U-shaped frame are smaller than the length and width of the inner cavity of the drainage channel. The opening size of the U-shaped frame is larger than the bottom opening size of the confluence groove. The U-shaped frame can be detachably installed in the inner cavity of the drainage channel.
[0008] The bottom and peripheral walls of the U-shaped frame are provided with a number of evenly distributed filter grooves, and the opening size of the filter grooves is smaller than the opening size of the anti-fouling groove.
[0009] Preferably, the drainage channel is provided with a retention chamber at one end near the diversion channel, and the bottom wall of the retention chamber is provided with a plurality of permeation grooves.
[0010] Preferably, the drainage channel is provided with two baffles at one end near the interception chamber.
[0011] Preferably, two reinforcing blocks are fixedly provided on the lower surface of the cover plate, and a trapezoidal rubber strip is fixedly provided on the lower surface of the reinforcing blocks. Two trapezoidal grooves are provided at the opening end of the drainage channel, and the trapezoidal rubber strip and the inner wall of the trapezoidal groove are in movable contact.
[0012] Preferably, two rubber strips are fixedly provided on the lower surface of the reinforcing block, and the lower surface of the rubber strips is in movable contact with the opening end of the drainage channel.
[0013] Preferably, a plurality of L-shaped limiting blocks are fixedly provided in the inner cavity of the drainage channel, and a rubber limiting seat is fixedly provided on the bottom wall of the L-shaped limiting block. The bottom of the U-shaped frame is in movable contact with one side of the rubber limiting seat and the bottom wall of the L-shaped limiting block.
[0014] Preferably, two U-shaped handles are fixedly provided at the open end of the U-shaped frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. In this utility model, by setting a filter component in the drainage channel, the U-shaped frame and filter groove filter the incoming rainwater, avoiding the blockage of the drainage pipe caused by too much debris in the rainwater, reducing the frequency of maintenance and repair of the drainage pipe, and improving the efficiency of rainwater drainage. Compared with the maintenance of the drainage pipe, the maintenance of the U-shaped frame is convenient and quick.
[0017] 2. In this utility model, the converging groove accelerates the flow rate of rainwater, allowing rainwater to quickly pass through the anti-fouling groove and enter the interior of the drainage channel.
[0018] 3. In this utility model, by setting a U-shaped frame that can be quickly disassembled, it is easy for operators to quickly remove the U-shaped frame from the drainage channel, so as to clean up the debris inside the U-shaped frame;
[0019] 4. In this utility model, by setting up an interception cavity and an infiltration groove, a small portion of rainwater below the drainage channel stays in the interception cavity, and the rainwater in the interception cavity seeps into the soil through the infiltration groove, which alleviates the drainage pressure of the drainage pipe to a certain extent. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of a roadbed slope drainage structure according to the present invention.
[0022] Figure 2 This is a schematic diagram of the connection structure between the cover plate and the U-shaped frame and the drainage channel of this utility model.
[0023] Figure 3 This is a schematic diagram of the separation structure of the cover plate and the drainage channel of this utility model.
[0024] Figure 4 This is a schematic diagram of the structure of the cover plate of this utility model.
[0025] Figure 5 This is a schematic diagram of the separation structure of the U-shaped frame, L-shaped limiting block, and rubber limiting seat of this utility model.
[0026] Figure 6 This is a schematic diagram showing the distribution of the U-shaped frame of this utility model.
[0027] In the diagram: 1. Drainage channel; 2. Diversion channel; 3. Drainage pipe; 4. Inspection well; 11. Interception chamber; 12. Infiltration tank; 13. Baffle; 5. Cover plate; 51. Confluence groove; 52. Anti-fouling groove; 53. Reinforcing block; 54. Trapezoidal rubber strip; 55. Trapezoidal groove; 56. Rubber pressure strip; 6. Filter assembly; 61. U-shaped frame; 62. Filter tank; 63. L-shaped limiting block; 64. Rubber limiting seat; 65. U-shaped handle. Detailed Implementation
[0028] 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.
[0029] Example: Figures 1-6As shown, this utility model provides a drainage structure for a highway subgrade slope, including a drainage channel 1, a diversion channel 2, a drainage pipe 3, and a maintenance well 4. One end of the diversion channel 2 is connected to the inner cavity of the drainage channel 1, and the other end of the diversion channel 2 is connected to the inner cavity of the drainage pipe 3. The drainage pipe 3 passes through the maintenance well 4. During the drainage process of the highway subgrade slope, the drainage channel 1, the diversion channel 2, and the maintenance well 4 are precast concrete. The drainage channel 1, the diversion channel 2, the drainage pipe 3, and the maintenance well 4 are pre-embedded between the highway and the slope. The water flowing downwards on the slope... Rainwater can enter the drainage channel 1, then flow into the drainage pipe 3 through the diversion channel 2 and be discharged. A movable inspection cover is installed at the top of the inspection well 4. After opening the inspection cover, the drainage pipe 3 can be inspected and maintained inside the inspection well 4. A cover plate 5 is movably installed at the opening end of the drainage channel 1. A converging groove 51 is provided on the upper surface of the cover plate 5. The converging groove 51 has a trapezoidal shape with an upper opening larger than a lower opening. Several evenly distributed anti-fouling grooves 52 are provided on the bottom wall of the converging groove 51. Through the installation of the trapezoidal converging groove 51 and the anti-fouling grooves 52... When rainwater flows down the slope, the confluence groove 51 accelerates the flow rate, allowing the rainwater to quickly pass through the anti-fouling groove 52 and enter the drainage channel 1. Simultaneously, the anti-fouling groove 52 prevents stones and leaves from entering the drainage channel 1. Two reinforcing blocks 53 are fixedly installed on the lower surface of the cover plate 5, and trapezoidal rubber strips 54 are fixedly installed on the lower surface of the reinforcing blocks 53. Two trapezoidal grooves 55 are provided at the opening end of the drainage channel 1. The trapezoidal rubber strips 54 and the inner walls of the trapezoidal grooves 55 are in movable contact. By setting the trapezoidal rubber strips 54 and the trapezoidal grooves 55... When the cover plate 5 is placed above the drainage channel 1, pressing down on the cover plate 5 allows the trapezoidal rubber strip 54 to enter the trapezoidal groove 55, thereby improving the stability of the cover plate 5 and preventing it from swaying left and right. Two rubber pressure strips 56 are fixedly provided on the lower surface of the reinforcing block 53. The lower surface of the rubber pressure strips 56 is in contact with the opening end of the drainage channel 1. By providing the rubber pressure strips 56, the rubber pressure strips 56 can further improve the stability of the cover plate 5 through the friction between themselves and the opening end of the drainage channel 1.
[0030] The drainage channel 1 is equipped with a filter assembly 6, which includes a U-shaped frame 61. The length and width of the U-shaped frame 61 are smaller than the length and width of the inner cavity of the drainage channel 1, and the opening size of the U-shaped frame 61 is larger than the bottom opening size of the confluence groove 51. The U-shaped frame 61 is detachably installed in the inner cavity of the drainage channel 1. By setting the U-shaped frame 61, when rainwater flows down into the inner cavity of the drainage channel 1 through the anti-fouling groove 52, the rainwater enters the U-shaped frame 61.
[0031] The bottom and perimeter walls of the U-shaped frame 61 are provided with a number of evenly distributed filter grooves 62. The opening size of the filter grooves 62 is smaller than the opening size of the anti-fouling groove 52. By setting the filter grooves 62, when rainwater enters the interior of the U-shaped frame 61, the rainwater in the U-shaped frame 61 continues to flow downward through the filter grooves 62. The filter grooves 62 can filter and intercept stones and leaves larger than the size of the filter grooves 62, keeping them inside the U-shaped frame 61. If the filter grooves 62 are completely blocked by stones and leaves, the rainwater in the U-shaped frame 61 will overflow outward through the opening end of the U-shaped frame 61 to the bottom of the drainage channel 1.
[0032] A retaining cavity 11 is provided at one end of the drainage channel 1 near the diversion channel 2. Several infiltration grooves 12 are provided on the bottom wall of the retaining cavity 11. Two baffles 13 are provided at one end of the drainage channel 1 near the retaining cavity 11. By setting up the retaining cavity 11, the infiltration grooves 12 and the baffles 13, the baffles 13 are pre-embedded at the bottom of the foundation pit during construction. When rainwater flows into the bottom of the drainage channel 1, most of the rainwater flows into the drainage pipe 3 through the diversion channel 2, while a small part of the rainwater stays in the retaining cavity 11. The rainwater in the retaining cavity 11 seeps into the soil through the infiltration grooves 12, which can alleviate the drainage pressure of the drainage pipe 3 to a certain extent.
[0033] Several L-shaped limiting blocks 63 are fixedly installed in the inner cavity of the drainage channel 1. Rubber limiting seats 64 are fixedly installed on the bottom wall of the L-shaped limiting blocks 63. The bottom of the U-shaped frame 61 is in movable contact with one side of the rubber limiting seat 64 and the bottom wall of the L-shaped limiting blocks 63. By setting the L-shaped limiting blocks 63 and the rubber limiting seats 64, when the U-shaped frame 61 is placed inside the drainage channel 1, the bottom of the U-shaped frame 61 is located between the four L-shaped limiting blocks 63 and the four rubber limiting seats 64, which limits and supports the U-shaped frame 61. Two U-shaped handles 65 are fixedly installed at the open end of the U-shaped frame 61. By setting the U-shaped handles 65, when the cover plate 5 is opened, the U-shaped handles 65 can be pulled upward to remove the U-shaped frame 61 for road maintenance personnel to clean the stones and leaves inside the U-shaped frame 61.
[0034] Working principle: When rainwater flows down the slope, it first flows into the confluence groove 51, which accelerates the flow rate of the rainwater, allowing it to quickly pass through the anti-fouling groove 52 and enter the U-shaped frame 61. The rainwater is accompanied by stones, leaves and other debris into the U-shaped frame 61. The anti-fouling groove 52 blocks some of the larger stones, leaves and other debris, preventing rainwater from entering the drainage pipe 3. Compared to maintaining the drainage pipe 3, the maintenance of the U-shaped frame 61 is convenient and quick.
[0035] Rainwater inside the U-shaped frame 61 continues to flow downward through the filter channel 62. The filter channel 62 filters and intercepts stones, leaves and other debris larger than the size of the filter channel 62, keeping them inside the U-shaped frame 61.
[0036] If the filter tank 62 is completely blocked, the rainwater in the U-shaped frame 61 will overflow outward through the open end of the U-shaped frame 61 to the bottom of the drainage channel 1.
[0037] Most of the rainwater below the drainage channel 1 is discharged outward through the diversion channel 2 and the drainage pipe 3. A small portion of the rainwater remains in the interception chamber 11. The rainwater in the interception chamber 11 seeps into the soil through the infiltration groove 12, which alleviates the drainage pressure of the drainage pipe 3 to a certain extent.
[0038] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A drainage structure for a highway subgrade slope, comprising a drainage channel (1), a diversion channel (2), a drainage pipe (3), and a maintenance well (4), wherein one end of the diversion channel (2) is connected to the inner cavity of the drainage channel (1), the other end of the diversion channel (2) is connected to the inner cavity of the drainage pipe (3), and the drainage pipe (3) penetrates the maintenance well (4), characterized in that: The drainage channel (1) is movably provided with a cover plate (5), and a confluence groove (51) is provided on the upper surface of the cover plate (5). The confluence groove (51) is a trapezoidal structure with the upper opening larger than the bottom opening, and a number of evenly distributed anti-fouling grooves (52) are provided on the bottom wall of the confluence groove (51). The drainage channel (1) is provided with a filter assembly (6) inside. The filter assembly (6) includes a U-shaped frame (61). The length and width of the U-shaped frame (61) are smaller than the length and width of the inner cavity of the drainage channel (1). The opening size of the U-shaped frame (61) is larger than the bottom opening size of the confluence groove (51). The U-shaped frame (61) can be detachably installed in the inner cavity of the drainage channel (1). The bottom wall and the perimeter wall of the U-shaped frame (61) are provided with a number of evenly distributed filter grooves (62), and the opening size of the filter grooves (62) is smaller than the opening size of the anti-fouling groove (52).
2. The roadbed slope drainage structure as described in claim 1, characterized in that, The drainage channel (1) is provided with a retention chamber (11) at one end near the diversion channel (2), and the bottom wall of the retention chamber (11) is provided with several permeation grooves (12).
3. A highway subgrade slope drainage structure as described in claim 2, characterized in that, Two baffles (13) are provided at one end of the drainage channel (1) near the interception chamber (11).
4. A highway subgrade slope drainage structure as described in claim 1, characterized in that, Two reinforcing blocks (53) are fixedly provided on the lower surface of the cover plate (5), and a trapezoidal rubber strip (54) is fixedly provided on the lower surface of the reinforcing block (53). Two trapezoidal grooves (55) are provided at the opening end of the drainage channel (1), and the inner walls of the trapezoidal rubber strip (54) and the trapezoidal grooves (55) are in contact.
5. A highway subgrade slope drainage structure as described in claim 4, characterized in that, Two rubber strips (56) are fixedly installed on the lower surface of the reinforcing block (53), and the lower surface of the rubber strips (56) is in contact with the opening end of the drainage channel (1).
6. A highway subgrade slope drainage structure as described in claim 1, characterized in that, The drainage channel (1) has a number of L-shaped limiting blocks (63) fixedly installed in its inner cavity. The bottom wall of the L-shaped limiting block (63) is fixedly provided with a rubber limiting seat (64). The bottom of the U-shaped frame (61) is in contact with one side of the rubber limiting seat (64) and the bottom wall of the L-shaped limiting block (63).
7. A highway subgrade slope drainage structure as described in claim 1, characterized in that, Two U-shaped handles (65) are fixedly installed at the open end of the U-shaped frame (61).