Water-permeable sidewalk on bridge and construction method thereof
By using permeable concrete and permeable bricks on the bridge sidewalk, combined with curb and drainage system, the differences and drainage pressure problems of the bridge sidewalk and road sidewalk are solved, and efficient drainage and safety improvement are achieved.
Patent Information
- Application Number
- CN202411663478.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-01-07
AI Technical Summary
The paving of the existing bridges and the pavement of the road is very different, which is prone to water accumulation, affecting safety and aesthetics, and the drainage pressure increases, resulting in water on the road area and affecting vehicle traffic.
Permeable concrete and permeable bricks are used as the sidewalk surface layer, combining the outer and inner curbs, the consumable concrete layer, longitudinal drainage ditches, permeable grilles, permeable spring steel pipes and non-woven geotextile backfilter layer to form an efficient drainage system to ensure water flow Quick discharge.
The coordination between the bridge sidewalk and the road sidewalk is achieved, the risks of water accumulation, depression and shedding are avoided, safety and durability are improved, and aesthetics and drainage are ensured.
Smart Images
Figure CN119266089A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of urban bridges, and in particular relates to a permeable sidewalk on a bridge and a construction method thereof. Background Art
[0002] The sidewalk is an important part of the bridge deck facilities in the city. It is connected with the road sidewalk and is the basic guarantee for citizens' green and safe travel. With the continuous advancement of urbanization and the application of the sponge city concept, permeable pavements such as permeable concrete, permeable bricks, and permeable asphalt have been widely used on urban road sidewalks, which are not only not easy to accumulate water, but also more beautiful.
[0003] At present, the existing bridge sidewalks in the project are usually paved with natural stone or artificial imitation stone bricks, which are obviously different from the road sidewalks and are not coordinated as a whole. The bridge sidewalks are exposed to the sun and rain for a long time. If bricks are used, it is easy to form water accumulation, and the brick pavement will also sag, warp or even fall off, posing a major safety hazard to pedestrians; the drainage of the bridge sidewalks is discharged horizontally into the roadway through the sidewalk surface in the form of runoff. The increase in the water catchment area of the sidewalk will lead to an increase in the drainage pressure of the road surface during heavy rainfall. During heavy rainfall, it is easy to form water accumulation on the road surface, affecting the passage of vehicles.
[0004] In view of this, the present invention proposes a permeable sidewalk on a bridge and a construction method thereof. The sidewalk surface can be paved with permeable concrete, permeable bricks, etc., which has strong applicability and can be consistent with the paving of the sidewalk on the adjacent road, thereby improving the aesthetics, safety and durability of the sidewalk structure on the bridge. Summary of the invention
[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a permeable sidewalk on a bridge and a construction method thereof. The permeable sidewalk on a bridge of the present invention meets the functional and safety requirements of urban bridge sidewalks, can relieve the surface drainage pressure of the sidewalk on the bridge, ensure that there is no water accumulation on the sidewalk on the bridge, and at the same time has the characteristics of being coordinated with the adjacent road sidewalk and being both beautiful and environmentally friendly.
[0006] In order to achieve the above technical objectives, the technical solution adopted by the embodiment of the present invention is: In a first aspect, an embodiment of the present invention provides a permeable sidewalk on a bridge, comprising an outer curbstone and an inner curbstone arranged on a bridge body, a tube-wrapped concrete layer and a longitudinal drainage ditch are arranged between the outer curbstone and the inner curbstone, a bridge deck leveling layer and a bridge deck waterproofing layer are arranged in sequence from bottom to top between the tube-wrapped concrete layer and the bridge body, a bridge-crossing pipeline is arranged on the bridge deck waterproofing layer, the bridge-crossing pipeline is arranged in the tube-wrapped concrete layer, the longitudinal drainage ditch is arranged between the tube-wrapped concrete layer and the inner curbstone, and the longitudinal drainage ditch is connected to a bridge deck drainage system through a drainage pipe; The top of the longitudinal drainage ditch is covered with a permeable grille, the top surface of the permeable grille is flush with the top surface of the tube-wrapped concrete layer, and the surfaces of the tube-wrapped concrete layer and the permeable grille are completely covered by a non-woven geotextile filter layer, a permeable spring steel pipe layer, a permeable concrete leveling layer, a sand cushion layer and a permeable surface layer which are arranged in sequence.
[0007] Furthermore, the height H1 of the outer curbstone is greater than the height H2 of the inner curbstone, and both ends of the top of the permeable surface layer are flush with the tops of the outer curbstone and the inner curbstone, respectively.
[0008] Furthermore, the longitudinal drainage ditch is arranged along the length direction of the bridge body and is close to the inner curb. The longitudinal drainage ditch is a U-shaped groove formed by masonry of a waterproof mortar layer, and the thickness of the waterproof mortar layer is 30-50mm.
[0009] Furthermore, the water-permeable spring steel pipes are arranged at intervals along the length direction of the bridge body and are arranged transversely between the outer curbstone and the inner curbstone.
[0010] Furthermore, the drainage pipes are arranged at intervals along the width direction of the bridge body; The bridge deck drainage system is arranged at intervals between the inner curb and the roadway, and a bridge deck leveling layer, a bridge deck waterproofing layer and a bridge deck asphalt pavement are arranged on the bridge body of the roadway from bottom to top, and the bridge deck leveling layer and the bridge deck waterproofing layer are arranged at the same height in the roadway and the sidewalk.
[0011] Furthermore, the permeable surface layer is made of permeable bricks, which are laid on the sand cushion layer, and the top ends of the permeable bricks are flush with the tops of the outer curbstone and the inner curbstone respectively.
[0012] In a second aspect, an embodiment of the present invention provides a construction method of the permeable sidewalk on the bridge according to the first aspect, comprising the following steps: Step S1: After the bridge body and the bridge deck drainage system are completed, a bridge deck leveling layer is implemented on the surface of the bridge body. After the maintenance is completed, a bridge deck waterproofing layer is implemented on the bridge deck leveling layer, and at the same time, the inner and outer curbs of the sidewalk are measured and laid out, and the molds are erected and cast; Step S2, laying bridge pipelines on the bridge deck waterproof layer, and implementing the pipe-wrapped concrete layer and longitudinal drainage ditch, and reserving the installation groove of the permeable grille; Step S3, installing a permeable grille on the top of the longitudinal drainage ditch, laying a non-woven geotextile filter layer on the top surface of the permeable grille and the surface of the tube-wrapped concrete layer, and laying and installing a seepage spring steel pipe on the non-woven geotextile filter layer; Step S4, spreading a permeable concrete leveling layer on the permeable spring steel pipe, implementing a sand cushion layer on the permeable concrete leveling layer, and laying a permeable surface layer on the sand cushion layer.
[0013] Furthermore, in step S1, a drainage pipe connected to the bridge deck drainage system is pre-buried before the inner curb of the sidewalk is cast in the formwork.
[0014] Furthermore, in step S1, the slope of the drainage pipe connected to the bridge deck drainage system is not less than 2%; In step S2, the longitudinal drainage ditch has a longitudinal slope along the direction of the bridge body, following the bridge body, but not less than 0.5%, and waterproof mortar is used to seal the end of the bridge body; In step S4, the top surface of the permeable concrete leveling layer is provided with a one-way transverse slope of 1%-2%, sloping toward the side of the carriageway, and the top surface of the permeable surface layer is provided with a one-way transverse slope of 1%-2%, sloping toward the side of the carriageway.
[0015] The technical solution provided by the embodiment of the present invention has the following beneficial effects: (1) The surface structure of the permeable sidewalk on the bridge of the present invention adopts permeable pavement such as permeable concrete and permeable bricks. The material, specification and color can be consistent with the adjacent road, and the overall appearance is beautiful and coordinated.
[0016] (2) The permeable sidewalk on the bridge of the present invention can quickly drain water from the road surface during the winter rainy season, relieve the drainage pressure on the road surface, ensure that there is no water accumulation on the sidewalk, and is waterproof and anti-slip, thereby improving safety.
[0017] (3) The surface layer of the permeable sidewalk on the bridge of the present invention can be paved uniformly with the road sidewalk, with good integrity, avoiding the risks of floor tiles falling off, sinking, and warping in traditional brick pavements of sidewalks, improving durability, and saving construction costs.
[0018] (4) The permeable sidewalk on the bridge of the present invention can quickly drain water from the sidewalk on the bridge deck, ensuring that there is no water on the sidewalk on the bridge, alleviating the drainage pressure on the road surface on the bridge. At the same time, it can be consistent and coordinated with the pavement of the adjacent road sidewalk, has strong applicability, and improves the aesthetics, safety and durability of the sidewalk structure on the bridge. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a cross-sectional view of a permeable sidewalk on a bridge in an embodiment of the present invention.
[0020] Figure 2 It is a plan view of a permeable sidewalk on a bridge in an embodiment of the present invention.
[0021] Explanation of the reference numerals: 1-bridge body; 2-bridge deck leveling layer; 3-bridge deck waterproofing layer; 4-outer curbstone; 5-inner curbstone; 6-bridge deck asphalt pavement; 7-bridge deck drainage system; 8-bridge pipeline; 9-pipeline concrete layer; 10-drainage pipe; 11-waterproof mortar layer; 12-longitudinal drainage ditch; 13-permeable grille; 14-non-woven geotextile filter layer; 15-permeable spring steel pipe; 16-permeable concrete leveling layer; 17-sand cushion layer; 18-permeable surface layer. DETAILED DESCRIPTION
[0022] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.
[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0024] Example 1 like Figure 1 and Figure 2 As shown, a permeable sidewalk on a bridge comprises an outer curb 4 and an inner curb 5 arranged on a bridge body 1, a tube-wrapped concrete layer 9 and a longitudinal drainage ditch 12 are arranged between the outer curb 4 and the inner curb 5, a bridge deck leveling layer 2 and a bridge deck waterproof layer 3 are arranged in sequence from bottom to top between the tube-wrapped concrete layer 9 and the bridge body 1, a bridge-crossing pipeline 8 is arranged on the bridge deck waterproof layer 3, the bridge-crossing pipeline 8 is arranged in the tube-wrapped concrete layer 9, the longitudinal drainage ditch 12 is arranged between the tube-wrapped concrete layer 9 and the inner curb 5, and the longitudinal drainage ditch 12 is connected to the bridge deck drainage system 7 through a drainage pipe 10; The top of the longitudinal drainage ditch 12 is covered with a permeable grille 13, the top surface of the permeable grille 13 is flush with the top surface of the tube-wrapped concrete layer 9, and the surface of the tube-wrapped concrete layer 9 and the permeable grille 13 are completely covered by a non-woven geotextile filter layer 14, a permeable spring steel pipe layer 15, a permeable concrete leveling layer 16, a sand cushion layer 17 and a permeable surface layer 18 which are arranged in sequence.
[0025] The height H1 of the outer curbstone 4 is greater than the height H2 of the inner curbstone 5 , and both ends of the top of the permeable surface layer 18 are flush with the tops of the outer curbstone 4 and the inner curbstone 5 , respectively.
[0026] The longitudinal drainage ditch 12 is arranged along the length direction of the bridge body 1 and is close to the inner curb 5. The longitudinal drainage ditch 12 is a U-shaped groove formed by masonry of a waterproof mortar layer 11, and the thickness of the waterproof mortar layer 11 is 30-50 mm.
[0027] The water-seepage spring steel pipes 15 are arranged at intervals along the length direction of the bridge body 1 and are arranged transversely between the outer curbstone 4 and the inner curbstone 5 .
[0028] The drainage pipes 10 are arranged at intervals along the width direction of the bridge body 1; The bridge deck drainage system 7 is arranged at intervals between the inner curb 5 and the carriageway, and the bridge deck leveling layer 2, the bridge deck waterproofing layer 3 and the bridge deck asphalt pavement 6 are arranged in sequence from bottom to top on the bridge body 1 of the carriageway, and the setting heights of the bridge deck leveling layer 2 and the bridge deck waterproofing layer 3 in the carriageway and the sidewalk are the same.
[0029] The permeable surface layer 18 is made of permeable bricks, which are laid on the sand cushion layer 17. The top ends of the permeable bricks are flush with the tops of the outer curbstone 4 and the inner curbstone 5 respectively.
[0030] Example 2 A construction method for a permeable sidewalk on a bridge comprises the following steps: Step S1, after the bridge body 1 and the bridge deck drainage system 7 are completed, a bridge deck leveling layer 2 is implemented on the surface of the bridge body 1, and after the maintenance is completed, a bridge deck waterproofing layer 3 is implemented on the bridge deck leveling layer 2, and at the same time, the inner curb 5 and the outer curb 4 of the sidewalk are measured and laid out and cast in molds; Before the inner sidewalk curb 5 is cast in the formwork, a drainage pipe 10 connected to the bridge deck drainage system 7 is pre-buried. The slope of the drainage pipe 10 connected to the bridge deck drainage system 7 is not less than 2%; Step S2, laying the bridge pipeline 8 on the bridge deck waterproof layer 3, and implementing the pipe-wrapped concrete layer 9 and the longitudinal drainage ditch 12, and reserving the installation groove of the permeable grille 13; The longitudinal drainage ditch 12 has a longitudinal slope along the bridge body 1, which is not less than 0.5%, and is sealed with waterproof mortar at the end of the bridge body 1; Step S3, installing a permeable grille 13 on the top of the longitudinal drainage ditch 12, laying a non-woven geotextile filter layer 14 on the top surface of the permeable grille 13 and the surface of the tube-wrapped concrete layer 9, and laying and installing a water seepage spring steel pipe 15 on the non-woven geotextile filter layer 14; Step S4, spreading a permeable concrete leveling layer 16 on the permeable spring steel pipe 15, and implementing a sand cushion layer 17 on the permeable concrete leveling layer 16, and laying a permeable surface layer 18 on the sand cushion layer 17; The top surface of the permeable concrete leveling layer 16 is provided with a one-way transverse slope of 1%-2%, sloping toward the roadway side; The top surface of the permeable surface layer 18 is provided with a one-way transverse slope of 1%-2%, which slopes toward the side of the roadway. The one-way transverse slope is provided to facilitate water flow from the sidewalk to the longitudinal drainage ditch 12 along the slope.
[0031] The pavement structure of the bridge deck in the embodiment of the present invention adopts permeable bricks, whose material, specification and color are consistent with the adjacent road, coordinated with the environment, and improved overall aesthetics; in the winter rainy season, it can quickly drain the accumulated water on the road surface, relieve the drainage pressure on the road surface, ensure that there is no water accumulation on the pavement of the sidewalk, and be waterproof and non-slip, thereby improving travel safety.
[0032] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.
Claims
1. A permeable sidewalk on a bridge, characterized in that: The invention comprises an outer curbstone (4) and an inner curbstone (5) arranged on a bridge body (1); a tube-wrapped concrete layer (9) and a longitudinal drainage ditch (12) are arranged between the outer curbstone (4) and the inner curbstone (5); a bridge deck leveling layer (2) and a bridge deck waterproofing layer (3) are arranged in sequence from bottom to top between the tube-wrapped concrete layer (9) and the bridge body (1); a bridge pipeline (8) is arranged on the bridge deck waterproofing layer (3); the bridge pipeline (8) is arranged in the tube-wrapped concrete layer (9); the longitudinal drainage ditch (12) is arranged between the tube-wrapped concrete layer (9) and the inner curbstone (5); and the longitudinal drainage ditch (12) is connected to a bridge deck drainage system (7) through a drainage pipe (10); The top of the longitudinal drainage ditch (12) is covered with a permeable grille (13), the top surface of the permeable grille (13) is flush with the top surface of the tube-wrapped concrete layer (9), and the surfaces of the tube-wrapped concrete layer (9) and the permeable grille (13) are completely covered by a non-woven geotextile filter layer (14), a permeable spring steel pipe layer (15), a permeable concrete leveling layer (16), a sand cushion layer (17) and a permeable surface layer (18) which are arranged in sequence.
2. The permeable sidewalk on the bridge according to claim 1, characterized in that: The height H1 of the outer curbstone (4) is greater than the height H2 of the inner curbstone (5), and both ends of the top of the permeable surface layer (18) are flush with the tops of the outer curbstone (4) and the inner curbstone (5), respectively.
3. The permeable sidewalk on the bridge according to claim 1, characterized in that: The longitudinal drainage ditch (12) is arranged along the length direction of the bridge body (1) and is close to the inner curb (5). The longitudinal drainage ditch (12) is a U-shaped groove formed by masonry of a waterproof mortar layer (11). The thickness of the waterproof mortar layer (11) is 30-50 mm.
4. The permeable sidewalk on the bridge according to claim 1, characterized in that: The water-seepage spring steel pipes (15) are arranged at intervals along the length direction of the bridge body (1), and are arranged transversely between the outer curbstone (4) and the inner curbstone (5).
5. The permeable sidewalk on the bridge according to claim 1, characterized in that: The drainage pipes (10) are arranged at intervals along the width direction of the bridge body (1); The bridge deck drainage system (7) is arranged at intervals between the inner curb (5) and the roadway, and a bridge deck leveling layer (2), a bridge deck waterproofing layer (3) and a bridge deck asphalt pavement (6) are arranged in sequence from bottom to top on the bridge body (1) of the roadway, and the bridge deck leveling layer (2) and the bridge deck waterproofing layer (3) are arranged at the same height in the roadway and the sidewalk.
6. The permeable sidewalk on the bridge according to claim 1, characterized in that: The permeable surface layer (18) is made of permeable bricks, which are laid on the sand cushion layer (17), and the top ends of the permeable bricks are respectively flush with the tops of the outer curbstone (4) and the inner curbstone (5).
7. The construction method of the permeable sidewalk on a bridge according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1: After the bridge body (1) and the bridge deck drainage system (7) are completed, a bridge deck leveling layer (2) is applied on the surface of the bridge body (1); after maintenance is completed, a bridge deck waterproofing layer (3) is applied on the bridge deck leveling layer (2); at the same time, the inner curb (5) and the outer curb (4) of the sidewalk are measured and laid out, and molds are erected and cast; Step S2, laying the bridge pipeline (8) on the bridge deck waterproof layer (3), and implementing the pipe-wrapped concrete layer (9) and the longitudinal drainage ditch (12), and reserving the installation groove of the permeable grille (13); Step S3, installing a permeable grille (13) on the top of the longitudinal drainage ditch (12), laying a non-woven geotextile filter layer (14) on the top surface of the permeable grille (13) and the surface of the tube-wrapped concrete layer (9), and laying and installing a water-seepage spring steel pipe (15) on the non-woven geotextile filter layer (14); Step S4, spreading a permeable concrete leveling layer (16) on the permeable spring steel pipe (15), implementing a sand cushion layer (17) on the permeable concrete leveling layer (16), and laying a permeable surface layer (18) on the sand cushion layer (17).
8. The construction method of the permeable sidewalk on the bridge according to claim 7, characterized in that: In step S1, a drainage pipe (10) connected to the bridge deck drainage system (7) is pre-buried before the inner sidewalk curb (5) is cast in a mold.
9. The construction method of the permeable sidewalk on the bridge according to claim 7, characterized in that: In step S1, the slope of the drainage pipe (10) connected to the bridge deck drainage system (7) is not less than 2%; In step S2, the longitudinal drainage ditch (12) has a longitudinal slope along the direction of the bridge body (1) following the bridge body (1), but not less than 0.5%, and waterproof mortar is used to seal the end of the bridge body (1); In step S4, the top surface of the permeable concrete leveling layer (16) is provided with a one-way transverse slope of 1%-2%, sloping toward the side of the carriageway, and the top surface of the permeable surface layer (18) is provided with a one-way transverse slope of 1%-2%, sloping toward the side of the carriageway.