Road structure with curb

Abstract

The utility model provides a road structure of installing kerb, including the base layer of laying in the roadbed upper end, the drainage pitch surface layer of laying on the base layer, and set in the road both sides and located the kerb of base layer upper end, the kerb is " L " shape structure and sets up in the base layer upper end, the vertical part inside of kerb is equipped with first drainage cavity for collecting water of water permeable surface layer surface layer, the drainage pitch surface layer arranges to both sides with the way of middle high both sides low, the horizontal part inside of kerb is equipped with second drainage cavity for collecting infiltrated water of water permeable surface layer, the kerb of being located in the same side is connected and inside intercommunication along the road extension direction head -to -tail splicing, the utility model discloses L kerb has the water retaining, diversion and drainage function, has realized to the surface layer water and infiltrated water of drainage pitch surface layer and carried out the layered collection and discharge, has improved the drainage efficiency, avoided the formation of rainwater infiltrated water to the roadbed accumulation and the road surface water film, safeguards the road surface bearing strength and stability.

Description

Technical Field

[0001] This utility model belongs to the field of road construction technology, specifically relating to road structures for installing curb stones. Background Technology

[0002] With the acceleration of urbanization and the promotion of the "sponge city" construction concept, permeable asphalt roads are widely used due to their advantages such as ecological and environmental protection, anti-skid and noise reduction, and mitigation of the urban heat island effect. The typical structure of existing permeable asphalt roads usually includes a drainage asphalt surface layer, drainage ditches or storm drains set on both sides of the road, and vertical curb stones located between the road surface and sidewalks, green belts, and other structures. Among them, the drainage asphalt surface layer allows rainwater to infiltrate quickly through its internal pores, while the lateral slope of the road surface on both sides guides surface runoff to drainage ditches or storm drains, and the vertical curb stones separate the carriageway from the roadside facilities.

[0003] However, existing permeable asphalt roads still have significant drawbacks: on the one hand, although permeable pavements can promote rainwater infiltration, they lack an active drainage mechanism for infiltrated water. Infiltrated rainwater remains in the base layer and subgrade for a long time, leading to softening of the base layer material and a decrease in the bearing capacity of the subgrade, affecting the service life and reliability of the road. On the other hand, independently installed drainage ditches or rainwater inlets collect surface runoff, requiring additional land space on both sides of the road, increasing construction costs and land occupation. In addition, upright curb stones have a single function, only serving a simple spatial separation function, and cannot coordinate with the drainage needs of permeable pavements. Utility Model Content

[0004] The purpose of this invention is to provide a road structure for installing curb stones, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The road structure with curb stones includes a base layer laid on the upper end of the roadbed, a drainage asphalt surface layer laid on the base layer, and curb stones set on both sides of the road and located on the upper end of the base layer. The curb stones are L-shaped and set on the upper end of the base layer. The vertical part of the curb stone has a first drainage chamber for collecting surface water from the permeable surface layer. The drainage asphalt surface layer slopes to both sides with a higher middle and lower sides. The horizontal part of the curb stone has a second drainage chamber for collecting seepage water from the permeable surface layer. The curb stones on the same side are spliced ​​end to end along the road extension direction and are internally interconnected.

[0007] Preferably, the base layer comprises, from bottom to top: a cement-stabilized crushed stone base layer, a concrete slope layer, and a waterproof adhesive layer. The concrete slope layer and the waterproof adhesive layer slope outwards to both sides with a higher center and lower sides. The concrete slope layer has downward grooves on both sides to form a stepped structure. The curbstone is placed in the steps. The waterproof adhesive layer extends to the bottom surface of the curbstone and connects with the bottom surface and the horizontal side of the curbstone.

[0008] Preferably, a water inlet is provided on the upper end face of the horizontal part of the curbstone, and a permeable plate is provided on the water inlet. The drainage asphalt surface layer is located at the upper end of the horizontal surface of the horizontal part of the curbstone.

[0009] Preferably, the permeable board includes: a permeable board body with a plurality of permeable holes through its surface, and a geotextile covering the upper surface of the permeable board body.

[0010] Preferably, the junction of the vertical portion and the extension of the horizontal portion of the curbstone is a rounded transition.

[0011] Preferably, the vertical part of the curbstone is provided with a drain outlet on the side near the road surface, the lower end of the drain outlet is lower than the upper end of the road surface, a filter screen plate is detachably connected to the drain outlet, slots are provided on both sides of the drain outlet, and inserts that are adapted to the slots are provided at both ends of the filter screen plate.

[0012] Preferably, the curbstone is provided with a locking groove and a locking block on both ends along its length, the locking groove and the locking block are adapted to each other, and a number of protruding structures are evenly distributed on the side and bottom surface of the curbstone that are in contact with the waterproof adhesive layer.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] 1. This utility model achieves the layered collection and discharge of surface water and infiltrated water in the drainage asphalt surface layer by setting a first drainage chamber and a second drainage chamber inside the L-shaped curbstone. This allows the L-shaped curbstone to have the functions of water blocking, diversion and drainage, eliminating the need to add a separate roadside drainage ditch, saving construction costs and land requirements. By rationally layering the road surface and scientifically finding the slope, combined with the drainage design of the curbstone, the drainage efficiency is improved, avoiding rainwater infiltration to the roadbed accumulation and the formation of a water film on the road surface, thus ensuring the load-bearing strength and stability of the road surface.

[0015] 2. This utility model achieves slope by simultaneously creating a concrete slope layer and a waterproof adhesive layer, allowing infiltrated water to flow along the concrete slope layer to the horizontal part of the curbstone. The water then enters the second drainage chamber through the permeable holes in the permeable board body and is discharged centrally through the interconnected second drainage chambers. This enhances the impermeability of the base layer and prevents rainwater from eroding the roadbed. By embedding the curbstone into the base layer steps and covering its bottom and sides with a waterproof adhesive layer, the adhesion between the curbstone and the base layer is enhanced, improving the stability of the overall structure.

[0016] 3. By setting the junction of the vertical and horizontal parts of the curbstone as an arc transition, this utility model can guide the seepage water from the water inlet into the second drainage chamber, avoiding water accumulation caused by the right angle structure, and further improving the drainage effect and structural durability of the curbstone.

[0017] 4. This utility model allows surface water to flow in naturally by setting the drain outlet lower than the road surface. By installing a filter screen on the drain outlet, road debris can be intercepted. The filter screen and the curb are detachably connected by a plug-slot structure, which facilitates quick disassembly and cleaning of the filter screen, thereby preventing the drain outlet from being blocked and ensuring that the drainage channel is unobstructed.

[0018] 5. This utility model achieves rapid positioning and fitting between adjacent curb stones by setting interlocking grooves and interlocking blocks on the curb stones, which significantly improves the installation efficiency of the curb stones and strengthens the overall connection stability of the curb stones. By embedding the waterproof adhesive layer through the protruding structure on the bottom and side of the curb stone, the contact surface of the waterproof adhesive layer is increased, the mechanical interlocking force is increased, and the curb stone and the base layer are ensured to share the force together, thereby improving the overall structural stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A secondary structural diagram of the road structure for installing curb stones;

[0021] Figure 2 A schematic diagram of the connection structure of multiple curb stones;

[0022] Figure 3 This is a schematic diagram showing the breakdown of the curbstone structure;

[0023] Reference numerals in the attached drawings: 1-subgrade, 2-drainage asphalt surface layer, 3-curbstone, 4-first drainage chamber, 5-second drainage chamber, 6-cement stabilized crushed stone base layer, 7-concrete slope layer, 8-waterproof bonding layer, 9-water inlet, 10-permeable board, 11-permeable board body, 12-permeable hole, 13-geotextile, 14-drainage outlet, 15-filter screen, 16-slot, 17-insert block, 18-slot groove, 19-slot block, 20-protruding structure. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] Example 1

[0032] like Figure 1 As shown, the road structure with curb stones includes a base layer laid on the upper end of the roadbed 1, a drainage asphalt surface layer 2 laid on the base layer, and curb stones 3 set on both sides of the road and located on the upper end of the base layer. The curb stones 3 have an "L" shaped structure and are set on the upper end of the base layer. The vertical part of the curb stone 3 has a first drainage chamber 4 for collecting surface water of the permeable surface layer. The drainage asphalt surface layer 2 slopes to both sides with a high middle and low sides. The horizontal part of the curb stone 3 has a second drainage chamber 5 for collecting seepage water from the permeable surface layer. The curb stones 3 on the same side are spliced ​​end to end along the road extension direction and are interconnected internally.

[0033] It should be noted that: the transverse slope of the drainage asphalt surface layer 2 should be ≥%, the drainage asphalt surface layer 2 can be made of SBS modified asphalt or high viscosity asphalt commonly used in existing technologies, with a porosity between % and %. The curbstone 3 is made of conventional concrete material, and the curbstones 3 on the same side are spliced ​​end to end. The gaps between the curbstones 3 are filled with waterproof sealing materials (such as silicone sealant, cement mortar, asphalt adhesive, etc.) to ensure the internal connectivity of the curbstone 3 and prevent rainwater from seeping into the base layer. The rainwater collected in the curbstone 3 will eventually flow into the municipal drainage system or other collection and discharge systems.

[0034] During rainfall, the slope of the drainage asphalt surface layer 2 guides surface water to flow to both sides, and then into the first drainage chamber 4 of the vertical part of the curbstone 3. Under the influence of its own weight, some rainwater on the road surface enters the drainage asphalt surface layer 2, and is guided by the slope of the base layer into the second drainage chamber 5 of the horizontal part of the curbstone 3. The surface water is finally discharged from the continuous drainage channel formed by the interconnection of the first drainage chamber 4, and the infiltrated water is finally discharged from the continuous drainage channel formed by the interconnection of the second drainage chamber 5. This achieves the layered collection and discharge of surface water and infiltrated water in the drainage asphalt surface layer 2, so that the L-shaped curbstone 3 has the functions of water blocking, flow guiding and drainage, without the need to add a separate roadside drainage ditch, saving construction costs and land requirements. Through reasonable road layering and scientific slope finding, combined with the drainage design of the curbstone 3, the drainage efficiency is improved, and the accumulation of rainwater infiltrating into the roadbed 1 and the formation of a water film on the road surface are avoided, ensuring the load-bearing strength and stability of the road surface.

[0035] Example 2

[0036] Based on Example 1, the base layer from bottom to top includes: cement-stabilized crushed stone base layer 6, concrete slope layer 7, and waterproof adhesive layer 8. The concrete slope layer 7 and waterproof adhesive layer 8 slope to both sides with a high center and low sides. The concrete slope layer 7 has downward grooves on both sides to form a stepped structure. The curbstone 3 is placed in the steps. The waterproof adhesive layer 8 extends to the bottom surface of the curbstone 3 and connects with the bottom surface and horizontal side of the curbstone 3.

[0037] It should be noted that the thickness of the cement-stabilized crushed stone base layer 6, the concrete slope layer 7, and the waterproof bonding layer 8 can be determined according to the actual situation. The waterproof bonding layer 8 can be made of asphalt waterproof substrates commonly used in existing technologies.

[0038] In this embodiment, the cement-stabilized crushed stone base 6 in the base layer provides a load-bearing foundation, the concrete slope layer 7 (with steps) forms a slope to guide water seepage, and the waterproof adhesive layer 8 covers the bottom and sides of the curbstone 3 to block the seepage water from penetrating into the base layer, while enhancing the interfacial adhesion.

[0039] Example 3

[0040] Based on Example 1, such as Figures 2-3 As shown, a water inlet 9 is provided on the upper end face of the horizontal part of the curbstone 3, and a permeable plate 10 is provided on the water inlet 9. The drainage asphalt surface layer is located at the upper end of the horizontal surface of the horizontal part of the curbstone 3. The permeable plate 10 includes: a permeable plate 10 body with a plurality of permeable holes 12 penetrating its surface, and a geotextile 13 covering the upper surface of the permeable plate 10 body.

[0041] In this embodiment, the diameter and number of the permeable holes 12 can be determined according to actual conditions. The geotextile 13 can be fixed to the permeable board 10 using stainless steel pressure strips. The purpose of setting up the geotextile 13 is to prevent the permeable holes 12 from being blocked and affecting the drainage effect when laying the drainage asphalt surface layer 2. The infiltrated water flows along the concrete slope layer 7 to the horizontal part of the curbstone 3, and enters the second drainage chamber 5 through the permeable holes 12 of the permeable board 10 body. Then, it is discharged through the interconnected second drainage chamber 5, which enhances the impermeability of the base layer and prevents rainwater from eroding the roadbed 1.

[0042] In order to improve the drainage effect and structural durability of the curbstone 3, the junction of the vertical part and the extension of the horizontal part of the curbstone 3 is a rounded transition.

[0043] Example 4

[0044] Based on Embodiment 1, the vertical part of the curbstone 3 is provided with a drain outlet 14 on the side near the road surface. The lower end of the drain outlet 14 is lower than the upper end of the road surface. A filter screen plate 15 is detachably connected to the drain outlet 14. Slots 16 are provided on both sides of the drain outlet 14. Inserts 17 that are adapted to the slots 16 are provided at both ends of the filter screen plate 15.

[0045] In this embodiment, the drain outlet 14 is set lower than the road surface, which is conducive to the natural flow of surface water. By setting a filter screen 15 on the drain outlet 14, road debris can be intercepted. The filter screen 15 and the curb stone 3 are detachably connected through the insert block 17-slot 16 structure, which facilitates the quick disassembly and cleaning of the filter screen 15, thereby preventing the drain outlet 14 from being blocked and ensuring the smooth flow of drainage.

[0046] Example 5

[0047] Based on Embodiment 1, the curbstone 3 is provided with a snap-fit ​​groove 18 and a snap-fit ​​block 19 on both ends along its length direction. The snap-fit ​​groove 18 and the snap-fit ​​block 19 are adapted to each other. Several protruding structures 20 are evenly distributed on the side and bottom surface of the curbstone 3 that are in contact with the waterproof adhesive layer 8.

[0048] In this embodiment, the geometry of the snap-fit ​​block 19 and the snap-fit ​​groove 18 can be set as a trapezoidal, dovetail, or other self-guiding structure. When adjacent curb stones 3 are installed, the snap-fit ​​block 19 and the snap-fit ​​groove 18 can automatically correct the positional deviation, achieving precise and rapid installation and significantly improving the installation efficiency of the curb stones 3. This also strengthens the overall connection stability of the curb stones 3. By embedding the waterproof adhesive layer 8 into the bottom and side protrusion structures 20 of the curb stones 3, the contact surface of the waterproof adhesive layer 8 is increased, and the mechanical interlocking force is increased, ensuring that the curb stones 3 and the base layer share the force together and improving the overall structural stability.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made without departing from the spirit and scope of this utility model as defined in the appended claims.

Claims

1. A road structure with installed curb stones, characterized in that: The road includes a base layer laid on the upper end of the roadbed (1), a drainage asphalt surface layer (2) laid on the base layer, and curb stones (3) set on both sides of the road and located on the upper end of the base layer. The curb stones (3) are L-shaped and set on the upper end of the base layer. The vertical part of the curb stone (3) is provided with a first drainage chamber (4) for collecting surface water of the permeable surface layer. The drainage asphalt surface layer (2) slopes to both sides with a high middle and low sides. The horizontal part of the curb stone (3) is provided with a second drainage chamber (5) for collecting seepage water from the permeable surface layer. The curb stones (3) on the same side are spliced ​​end to end along the road extension direction and are interconnected internally.

2. The road structure for installing curb stones according to claim 1, characterized in that: The base layer, from bottom to top, includes: cement-stabilized crushed stone base layer (6), concrete slope layer (7), and waterproof adhesive layer (8). The concrete slope layer (7) and waterproof adhesive layer (8) slope to both sides with a high middle and low sides. The concrete slope layer (7) has downward grooves on both sides to form a stepped structure. The curbstone (3) is placed in the steps. The waterproof adhesive layer (8) extends to the bottom surface of the curbstone (3) and connects with the bottom surface and the horizontal side of the curbstone (3).

3. The road structure for installing curb stones according to claim 1, characterized in that: A water inlet (9) is provided on the upper surface of the horizontal part of the curbstone (3), and a permeable plate (10) is provided on the water inlet (9). The drainage asphalt surface layer is located at the upper end of the horizontal surface of the horizontal part of the curbstone (3).

4. The road structure for installing curb stones according to claim 3, characterized in that: The permeable board (10) includes: a permeable board (10) body with a plurality of permeable holes (12) penetrating its surface, and a geotextile (13) covering the upper surface of the permeable board (10) body.

5. The road structure for installing curb stones according to claim 1, characterized in that: The junction of the vertical part and the horizontal extension of the curbstone (3) is a rounded transition.

6. The road structure for installing curb stones according to claim 1, characterized in that: The curbstone (3) has a drain outlet (14) on the side of the road surface on the vertical part. The lower end of the drain outlet (14) is lower than the upper end of the road surface. A filter screen plate (15) is detachably connected to the drain outlet (14). Slots (16) are provided on both sides of the drain outlet (14). The filter screen plate (15) has inserts (17) at both ends that are compatible with the slots (16).

7. The road structure for installing curb stones according to claim 2, characterized in that: The curbstone (3) is provided with a snap-fit ​​groove (18) and a snap-fit ​​block (19) on both ends along its length direction. The snap-fit ​​groove (18) and the snap-fit ​​block (19) are adapted to each other. Several protruding structures (20) are evenly distributed on the side and bottom surface of the curbstone (3) that are in contact with the waterproof adhesive layer (8).

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