Transverse gap type drainage channel for road surface

Abstract

The utility model discloses a road surface transverse gap type drainage channel, which relates to the technical field of road drainage structures, and comprises at least one drainage channel body, the drainage channel body is perpendicular to the driving direction, a filling cavity is arranged in the drainage channel body, and concrete is filled in the filling cavity. The drainage channel body is provided with a water inlet and a drainage channel, the water inlet is communicated with the drainage channel, and the drainage channel is located below the water inlet. Water on the road surface can be conveniently and rapidly drained, and the road driving safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of road drainage structure technology, and in particular to a transverse gap drainage channel for road surfaces. Background Technology

[0002] In road drainage design, surface water is typically collected in side ditches via a cross slope to facilitate lateral drainage. It is then discharged through chutes, drainage ditches, and other facilities. However, when the cross slope is small, the road surface is wide, or there is a large instantaneous rainfall, surface water cannot drain quickly, significantly increasing the water film thickness and severely impacting the road's anti-skid performance. This can lead to vehicle skidding and loss of speed, causing injuries and economic losses. Furthermore, road curves require superelevation to counteract the centrifugal force experienced by vehicles during curves, inevitably resulting in sections with gentle cross slopes or zero slope. For roads with three or more lanes in one direction or wide sections at the merging and diverging points of interchanges, poor drainage can occur in some sections due to construction quality issues, road subsidence, and sudden heavy rainfall, severely affecting driving comfort and safety in rainy weather. Utility Model Content

[0003] The purpose of this utility model is to provide a transverse slotted drainage channel for road surfaces to solve the problems existing in the prior art, facilitate the rapid drainage of water from the road surface, and improve road driving safety.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a transverse gap drainage channel for road surface, comprising: at least one drainage channel body, the drainage channel body being arranged perpendicular to the driving direction, the drainage channel body having a filling cavity inside, the filling cavity being filled with concrete, the drainage channel body having a water inlet and a drainage channel, the water inlet and the drainage channel being connected, and the drainage channel being located below the water inlet.

[0006] In some designs, the drainage channel body is a steel structure.

[0007] In some embodiments, the drainage trough body includes a first top plate, a second top plate, a first side plate, a second side plate, a first opening plate, a second opening plate, a drainage channel plate, and a bottom plate. The first top plate and the second top plate are symmetrically arranged, as are the first side plate and the second side plate, and the first opening plate and the second opening plate. The first opening plate and the second opening plate form the water inlet. The upper end of the first opening plate is connected to one end of the first top plate, and the upper end of the first side plate is connected to the other end of the first top plate. The upper end of the second opening plate is connected to one end of the second top plate, and the upper end of the second side plate is connected to the other end of the second top plate. The lower end of the first side plate is connected to one end of the bottom plate, and the lower end of the second side plate is connected to the other end of the bottom plate. The lower end of the first opening plate is connected to one end of the drainage channel plate, and the lower end of the second opening plate is connected to the other end of the drainage channel plate. The drainage channel plate forms the drainage channel.

[0008] In some embodiments, the first top plate and the bottom plate are both perpendicular to the first side plate, the second top plate and the bottom plate are both perpendicular to the second side plate, and the first top plate and the second top plate are both parallel to the bottom plate.

[0009] In some designs, the drainage channel plate is a curved panel, and the drainage channel protrudes in a direction away from the water inlet.

[0010] In some embodiments, the inner contour curve of the cross-section of the drainage channel plate includes a first arc segment, a second arc segment, and a third arc segment connected in sequence. The first arc segment and the third arc segment are symmetrically arranged. The radius corresponding to the first arc segment and the third arc segment is R1, and the radius corresponding to the second arc segment is R2. R1 is greater than R2.

[0011] In some embodiments, the drainage trough body is provided with a first support structure and a second support structure, both of which are connected to the drainage trough body. The first support structure and the second support structure are symmetrically arranged, with the first support structure located on one side of the water inlet and the second support structure located on the other side of the water inlet.

[0012] In some embodiments, the first support structure and the second support structure are identical in structure. Both the first support structure and the second support structure include a first support plate and a second support plate. One end of the first support plate is connected to one end of the second support plate, and the first support plate extends in a direction perpendicular to the second support plate. The first support plate is connected to the drainage trough body. The second support plate of the first support structure is located at the end of the first support plate of the first support structure that is closer to the second support structure. The second support plate of the second support structure is located at the end of the first support plate of the second support structure that is closer to the first support structure.

[0013] In some schemes, there are at least two drainage ditch bodies, each of which is arranged sequentially along the width of the road, and the ends of the drainage ditch bodies are offset from the wheel track of the lane.

[0014] The present invention achieves the following technical advantages over the prior art:

[0015] By incorporating the transverse slotted drainage ditch of this invention into the road structure, perpendicular to the direction of travel, water from the road surface enters the drainage channel through the inlet and exits through the drainage channel. This significantly shortens the drainage path in poorly drained sections, allowing surface water to drain quickly from the road boundary under the influence of the longitudinal slope. This noticeably improves the situation of water accumulation and thick water film on roads during rainy weather, effectively enhancing driving safety in rainy conditions. Furthermore, the internal cavity of the drainage ditch is filled with concrete, which improves the mechanical properties of the transverse slotted drainage ditch and extends its service life under long-term vehicle loads. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 This is an isometric view of a transverse gap drainage ditch for road surface in some embodiments of this utility model.

[0018] Figure 2 This is a schematic cross-section of the drainage trough body in some embodiments of the present invention. Figure 1 ;

[0019] Figure 3 This is a schematic cross-section of the drainage trough body in some embodiments of the present invention. Figure 2 ;

[0020] Figure 4 These are schematic diagrams of the inner and outer ring structures in some embodiments of this utility model;

[0021] Figure 5 This is a schematic diagram of the placement groove in some embodiments of the present invention;

[0022] Figure 6 This is a schematic diagram illustrating the application of transverse gap drainage channels in some embodiments of the present invention.

[0023] In the diagram: 100 - transverse gap drainage channel for road surface; 1 - drainage channel body; 2 - filling cavity; 3 - water inlet; 4 - drainage channel; 5 - first top plate; 6 - second top plate; 7 - first side plate; 8 - second side plate; 9 - first opening plate; 10 - second opening plate; 11 - drainage channel plate; 12 - bottom plate; 13 - first arc segment; 14 - second arc segment; 15 - third arc segment; 16 - first support structure; 17 - second support structure; 18 - first support plate; 19 - second support plate; 20 - concrete; 21 - inner ring structure; 22 - outer ring structure; 23 - connection position; 24 - wearing course; 25 - cement mortar; 26 - placement groove; 27 - crushed stone layer; 28 - water-stabilized layer; 29 - asphalt layer. Detailed Implementation

[0024] 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.

[0025] The purpose of this utility model is to provide a transverse slotted drainage channel for road surfaces to solve the problems existing in the prior art, facilitate the rapid drainage of water from the road surface, and improve road driving safety.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 6As shown, this embodiment provides a transverse gap drainage channel 100 for road surfaces, including: at least one drainage channel body 1, the length direction of the drainage channel body 1 is perpendicular to the driving direction, the drainage channel body 1 has a filling cavity 2 inside, the filling cavity 2 is filled with concrete 20, the drainage channel body 1 has a water inlet 3 and a drainage channel 4, the water inlet 3 and the drainage channel 4 both extend along the length direction of the drainage channel body 1, the water inlet 3 and the drainage channel 4 are connected, and the drainage channel 4 is located below the water inlet 3.

[0028] In some embodiments, the drainage ditch body 1 is a steel structure, preferably made of Q235 steel. The material of the drainage ditch body 1 can also be adjusted according to the traffic load. The drainage ditch body 1 includes a first top plate 5, a second top plate 6, a first side plate 7, a second side plate 8, a first opening plate 9, a second opening plate 10, a drainage channel plate 11, and a bottom plate 12. The first top plate 5 and the second top plate 6 are symmetrically arranged, the first side plate 7 and the second side plate 8 are symmetrically arranged, and the first opening plate 9 and the second opening plate 10 are symmetrically arranged. The first opening plate 9 and the second opening plate 10 form a water inlet 3. The width of the water inlet 3 is 2cm to 3cm, and the depth of the water inlet 3 is the same as that of the first opening plate 9 or the second opening plate 10. The length of the plate 10 and the depth of the inlet 3 can be adjusted according to specific hydraulic calculations and the thickness of the road surface structure; the upper end of the first opening plate 9 is connected to one end of the first top plate 5, and the upper end of the first side plate 7 is connected to the other end of the first top plate 5; the upper end of the second opening plate 10 is connected to one end of the second top plate 6, and the upper end of the second side plate 8 is connected to the other end of the second top plate 6; the lower end of the first side plate 7 is connected to one end of the bottom plate 12, and the lower end of the second side plate 8 is connected to the other end of the bottom plate 12; the lower end of the first opening plate 9 is connected to one end of the drainage channel plate 11, and the lower end of the second opening plate 10 is connected to the other end of the drainage channel plate 11, and the drainage channel plate 11 forms the drainage channel 4.

[0029] In some embodiments, the first top plate 5, the first side plate 7, the bottom plate 12, the second side plate 8, and the second top plate 6 form an outer ring structure 22. The first top plate 5, the first side plate 7, the bottom plate 12, the second side plate 8, and the second top plate 6 are integrally formed. Preferably, the first top plate 5, the first side plate 7, the bottom plate 12, the second side plate 8, and the second top plate 6 are formed by stamping and bending sheet metal. The first opening plate 9, the drainage channel plate 11, and the second opening plate 10 form an inner ring structure 21, located inside the outer ring structure 22. The first opening plate 9, the drainage channel plate 11, and the second opening plate 10 are integrally formed. Preferably, the first opening plate 9, the drainage channel plate 11, and the second opening plate 10 are formed by stamping and bending sheet metal. The inner ring structure 21 and the outer ring structure 22 are connected by welding the first opening plate 9 to the first top plate 5 and the second opening plate 10 to the second top plate 6. The connection position 23 between the inner ring structure 21 and the outer ring structure 22 is as follows: Figure 4 As shown, the drainage trough body 1 is formed.

[0030] In some embodiments, the first top plate 5, the second top plate 6, the first side plate 7, the second side plate 8, the first opening plate 9, the second opening plate 10, the drainage channel plate 11, and the bottom plate 12 form a filling cavity 2. The drainage channel body 1 serves as a template for concrete 20. Concrete 20 is filled into the filling cavity 2 of the drainage channel body 1. Concrete 20 is preferably C40 concrete, but it can also be adjusted according to the traffic load.

[0031] In some embodiments, the first top plate 5 and the bottom plate 12 are both perpendicular to the first side plate 7, the second top plate 6 and the bottom plate 12 are both perpendicular to the second side plate 8, and the first top plate 5 and the second top plate 6 are both parallel to the bottom plate 12.

[0032] In some embodiments, the drainage channel plate 11 is a curved plate, the drainage channel 4 protrudes in a direction away from the water inlet 3, and the cross-section of the drainage channel plate 11 is a circle, ellipse or teardrop shape with a notch, preferably a teardrop shape. The shape of the drainage channel 4 makes it possible to eliminate dead corners in the drainage channel 4, which facilitates cleaning of the drainage channel 4.

[0033] In some embodiments, the inner contour curve of the cross-section of the drainage channel plate 11 includes a first arc segment 13, a second arc segment 14, and a third arc segment 15 connected in sequence. The first arc segment 13 and the third arc segment 15 are symmetrically arranged about the second arc segment 14. The radii corresponding to the first arc segment 13 and the third arc segment 15 are both R1, and the radius corresponding to the second arc segment 14 is R2, where R1 is greater than R2. The specific dimensions of the first arc segment 13, the second arc segment 14, and the third arc segment 15 can be optimized and adjusted as needed.

[0034] In some embodiments, a first support structure 16 and a second support structure 17 are provided on the drainage trough body 1. Both the first support structure 16 and the second support structure 17 are connected to the drainage trough body 1. Both the first support structure 16 and the second support structure 17 extend along the length direction of the drainage trough body 1. Both the first support structure 16 and the second support structure 17 are equal in length to the drainage trough body 1. The first support structure 16 and the second support structure 17 are symmetrically arranged. The first support structure 16 is located on one side of the water inlet 3, and the second support structure 17 is located on the other side of the water inlet 3.

[0035] In some embodiments, the first support structure 16 and the second support structure 17 have the same structure. Both the first support structure 16 and the second support structure 17 are angle steel. Both the first support structure 16 and the second support structure 17 include a first support plate 18 and a second support plate 19. One end of the first support plate 18 is connected to one end of the second support plate 19, and the first support plate 18 extends in a direction perpendicular to the second support plate 19. The first support plate 18 is connected to the drainage trough body 1 by welding. The second support plate 19 of the first support structure 16 is located at the end of the first support plate 18 of the first support structure 16 that is close to the end of the second support structure 17. The second support plate 19 of the second support structure 17 is located at the end of the first support plate 18 of the second support structure 17 that is close to the end of the first support structure 16. After the concrete 20 is filled into the cavity 2, the first support structure 16 and the second support structure 17 are welded. The second support plate 19 of the first support structure 16 is flush with the first opening plate 9, and the second support plate 19 of the second support structure 17 is flush with the second opening plate 10. The second support plate 19 of the first support structure 16 and the second support structure 17 can limit the bonding layer and the wear layer 24 during the construction of the road transverse gap drainage channel 100 in this embodiment, and prevent the bonding layer and the wear layer 24 from loosening and falling off and blocking the water inlet 3.

[0036] In some embodiments, there are at least two drainage ditch bodies 1, each arranged sequentially along the width of the road. The ends of the drainage ditch bodies 1 are staggered from the wheel track of the lane. The wheel track is preferably located in the middle of the drainage ditch body 1, that is, in the middle of the length direction of the drainage ditch body 1. This avoids uneven settlement of the roadbed at the bottom of the transverse gap drainage ditch 100 due to long-term eccentric pressure from vehicle loads, which would affect the smoothness of the road surface. The length of the drainage ditch body 1 is 1m to 3m to avoid cracking caused by the shrinkage and expansion deformation of the large volume concrete 20.

[0037] This embodiment uses a 2cm-3cm wide slotted water inlet 3, which can quickly collect surface water without affecting driving comfort. The drainage channel body 1 is made of steel, and the inside of the drainage channel body 1 is filled with concrete 20, forming a combined structure of steel structure and concrete 20. This significantly improves the compressive and bending mechanical properties of the transverse slotted drainage channel 100, ensuring that the transverse slotted drainage channel 100 can withstand the long-term effect of vehicle load within the design cycle without damage. In addition, the prefabricated transverse slotted drainage channel 100 simplifies the manufacturing process, and the external drainage channel body 1 can be directly used as a template for the concrete 20, improving production efficiency. The drainage channel plate 11 forms a drainage channel 4 protruding away from the water inlet 3, which to some extent alleviates the slotted cantilever of the rectangular drainage channel. To address issues such as excessive structural length and relatively concentrated structural stress, the structural stress distribution of the transverse slot drainage channel 100 has been optimized, ensuring a certain cross-sectional area for water passage and enabling sufficient collection of surface water. The top surface of the transverse slot drainage channel 100 is reinforced with a wear layer 24. By welding a first support structure 16 and a second support structure 17 to the top surface of the transverse slot drainage channel 100, lateral support is provided for the wear layer 24. This achieves a smooth transition and uniform appearance between the road section containing the transverse slot drainage channel 100 and other road sections. Furthermore, the added flexible wear layer 24 and the waterproof adhesive layer can alleviate surface water infiltration and the decrease in smoothness caused by road surface deformation to a certain extent, thereby reducing the jerking sensation when vehicles pass through the transverse drainage channel quickly and improving driving comfort.

[0038] The transverse gap drainage channel 100 of this embodiment can significantly improve the structural stress state under traffic loads, adapt to long-term traffic loads, ensure vehicles pass smoothly and quickly through the transverse gap drainage channel 100, and effectively guarantee driving comfort without significant jerking. By setting single or multiple rows of transverse gap drainage channels 100 on wide road surfaces, gentle slopes, and zero-slope sections where drainage paths are long or drainage is poor, the drainage path of surface water is effectively shortened and the thickness of the water film on the road surface is reduced during heavy rain, thereby greatly improving high-speed driving safety in rainy weather, reducing the incidence of traffic accidents, and minimizing casualties and economic losses.

[0039] like Figures 1 to 6 As shown, this embodiment also discloses a construction method for the transverse gap drainage channel 100 of the road surface according to Embodiment 1, including:

[0040] Step 1: Grooving is performed on the road structure to form placement groove 26, which extends sequentially from the crushed stone layer 27, the water-stabilized layer 28, and the asphalt layer 29 of the road structure.

[0041] When grooving the road surface structure, there are two situations:

[0042] In the first case, for newly built roads, after the road surface structure is paved, grooves are made according to the dimensions of the transverse joint drainage channel 100. 4cm to 5cm is reserved in the width direction and 5cm to 8cm in the depth direction for filling with cement mortar 25 for leveling. Grooves are made in the full width of the road transverse (i.e., in the direction perpendicular to the driving direction), and the waste generated from grooving is removed.

[0043] In the second scenario, for existing roads, after laying out and positioning the transverse gap drainage channel 100, grooves are made according to the dimensions of the transverse gap drainage channel 100. 4cm to 5cm is reserved in the width direction and 5cm to 8cm in the depth direction for filling with cement mortar 25 for leveling. The grooves are made across the entire width of the road transversely (i.e., in the direction perpendicular to the driving direction), and the waste generated from the grooving is removed.

[0044] Step 2: A cement mortar layer is formed on the inner wall of the placement trough 26. The drainage trough body 1 is placed one by one in the placement trough 26. Cement mortar 25 is filled between the cement mortar layer on the side wall of the placement trough 26 and the drainage trough body 1. Finally, the cement mortar 25 on the surface is scraped smooth.

[0045] Step 3: Shot blasting or sandblasting is performed on the upper surface of the first top plate 5 and the upper surface of the second top plate 6 of the drainage ditch body 1. Hot-modified asphalt is then sprayed to form a bonding layer. A 4cm-5cm thick hot-mix modified asphalt mixture is laid on the bonding layer to form a wearing course 24. The gradation and materials of the wearing course should be consistent with those of general road sections. As a preferred hot-mix modified asphalt mixture, coarse aggregates such as basalt and diabase can be mixed with SBS (styrene-butadiene-styrene, thermoplastic styrene-butadiene rubber) modified asphalt. The wear layer 24 is compacted to improve its overall road performance. It is flush with the upper surface of the pavement structure and compacted using small compaction equipment. Traffic can be opened once the temperature of the wear layer 24 drops below 50°C. In this embodiment, shot blasting or sandblasting is applied to the upper surfaces of the first top plate 5 and the second top plate 6, improving the surface roughness of both plates and enhancing the adhesion between the bonding layer, the wear layer 24, and the drainage channel body. This prevents defects such as displacement and peeling, thereby extending the service life of the wear layer 24.

[0046] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A transverse slotted drainage channel for road surfaces, characterized in that: include: At least one drainage trough body is provided, the drainage trough body is arranged perpendicular to the driving direction, the drainage trough body has a filling cavity inside, the filling cavity is filled with concrete, the drainage trough body is provided with a water inlet and a drainage channel, the water inlet and the drainage channel are connected, and the drainage channel is located below the water inlet; The drainage trough body is provided with a first support structure and a second support structure. Both the first support structure and the second support structure are connected to the drainage trough body. The first support structure and the second support structure are symmetrically arranged. The first support structure is located on one side of the water inlet, and the second support structure is located on the other side of the water inlet.

2. The transverse slotted drainage channel for road surface according to claim 1, characterized in that: The drainage trough itself is a steel structure.

3. The transverse slotted drainage channel for road surface according to claim 1, characterized in that: The drainage trough body includes a first top plate, a second top plate, a first side plate, a second side plate, a first opening plate, a second opening plate, a drainage channel plate, and a bottom plate. The first top plate and the second top plate are symmetrically arranged, as are the first side plate and the second side plate, and the first opening plate and the second opening plate. The first opening plate and the second opening plate form the water inlet. The upper end of the first opening plate is connected to one end of the first top plate, and the upper end of the first side plate is connected to the other end of the first top plate. The upper end of the second opening plate is connected to one end of the second top plate, and the upper end of the second side plate is connected to the other end of the second top plate. The lower end of the first side plate is connected to one end of the bottom plate, and the lower end of the second side plate is connected to the other end of the bottom plate. The lower end of the first opening plate is connected to one end of the drainage channel plate, and the lower end of the second opening plate is connected to the other end of the drainage channel plate. The drainage channel plate forms the drainage channel.

4. The transverse slotted drainage channel for road surface according to claim 3, characterized in that: The first top plate and the bottom plate are both perpendicular to the first side plate, the second top plate and the bottom plate are both perpendicular to the second side plate, and the first top plate and the second top plate are both parallel to the bottom plate.

5. The transverse slotted drainage channel for road surface according to claim 3, characterized in that: The drainage channel plate is a curved plate, and the drainage channel protrudes in a direction away from the water inlet.

6. The transverse slotted drainage channel for road surface according to claim 5, characterized in that: The inner contour curve of the cross-section of the drainage channel plate includes a first arc segment, a second arc segment, and a third arc segment connected in sequence. The first arc segment and the third arc segment are symmetrically arranged. The radius of the first arc segment and the third arc segment is R1, and the radius of the second arc segment is R2. R1 is greater than R2.

7. The transverse slotted drainage channel for road surface according to claim 1, characterized in that: The first support structure and the second support structure have the same structure. Both the first support structure and the second support structure include a first support plate and a second support plate. One end of the first support plate is connected to one end of the second support plate, and the first support plate extends in a direction perpendicular to the second support plate. The first support plate is connected to the drainage trough body. The second support plate of the first support structure is located at the end of the first support plate of the first support structure that is closer to the end of the second support structure. The second support plate of the second support structure is located at the end of the first support plate of the second support structure that is closer to the end of the first support structure.

8. The transverse slotted drainage channel for road surface according to claim 1, characterized in that: There are at least two drainage ditch bodies, and each drainage ditch body is arranged sequentially along the width direction of the road, with the ends of the drainage ditch bodies offset from the wheel track of the lane.

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