A compartment-type efficient bridge deck drainage system for long urban bridges

Abstract

The present invention belongs to the technical field of bridge drainage, and specifically discloses a compartment-type high-efficiency bridge deck drainage system for long urban bridges, comprising drainage compartments located in the sidewalks on both sides of the bridge and extending along the length direction of the bridge, and a plurality of water collection ports arranged on the inner side of the drainage compartment and spaced apart along the length direction of the bridge, and a movable cover plate arranged above the drainage compartment. The drainage system is composed of the drainage compartment, the water collection ports and the movable cover plate; the drainage compartment comprises a first drainage compartment, a second drainage compartment and a third drainage compartment, and the first drainage compartment, the second drainage compartment and the third drainage compartment are rectangular channels arranged side by side along the same longitudinal slope direction and independently connected to municipal rainwater inspection wells at the ends. The bridge deck rainwater is drained into the municipal rainwater pipe network to avoid pollution of the river water under the bridge or adverse effects on the traffic on the road under the bridge, and effectively avoid the formation of water film on the road surface, thereby reducing the probability of accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge drainage, and in particular to a compartment-type high-efficiency bridge deck drainage system for long and large urban bridges. Background Art

[0002] Bridge drainage is an important component of bridge accessories. Perfect bridge drainage facilities can ensure bridge deck traffic safety and improve bridge durability. At present, with the improvement of environmental awareness and landscape requirements, it has become a widely accepted consensus that rainwater from bridge decks should not be discharged directly into rivers but should be discharged in an organized manner into municipal rainwater facilities. However, for long and large bridges across rivers, the commonly used water collection pipe drainage and side ditch drainage are both inefficient. In the face of heavy rain and other weather conditions, rainwater from the bridge deck cannot be discharged quickly, which will lead to water accumulation on the bridge, thereby reducing the bridge's traffic capacity and forming a water film on the bridge deck that affects driving safety. Therefore, in order to ensure efficient and rapid drainage of bridges and reduce the adverse effects of accumulated water on driving safety, it is necessary to rethink and design bridge drainage facilities and make further improvements. Summary of the Invention

[0003] The purpose of the present invention is to provide a compartment-type efficient bridge deck drainage system for long urban bridges to solve the problem of insufficient bridge drainage function.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a compartment-type, efficient bridge deck drainage system for long urban bridges, characterized by comprising drainage compartments located within the sidewalks on both sides of the bridge and extending along the length of the bridge, a plurality of water inlets provided inside the drainage compartments and spaced apart along the length of the bridge, and a movable cover plate provided above the drainage compartments. The drainage system is composed of the drainage compartments, the water inlets, and the movable cover plate. The present invention has a reasonable structure, can effectively utilize the internal space of the sidewalks, and does not affect the overall structure of the bridge or the landscape.

[0005] The drainage bin includes the first drainage sub-bin, the second drainage sub-bin, and the third drainage sub-bin. The first drainage sub-bin, the second drainage sub-bin, and the third drainage sub-bin are rectangular channels arranged side by side along the same longitudinal slope and the ends are independently connected to the municipal rainwater inspection well. The rainwater on the bridge deck is drained to the municipal rainwater pipeline network to avoid pollution of the river water under the bridge or adverse effects on the traffic on the road under the bridge, effectively avoiding the formation of water film on the road surface, thereby reducing the probability of accidents.

[0006] Furthermore, the first drainage sub-chamber is arranged outside the drainage chamber, and is used to drain rainwater from the upstream bridge section on the same longitudinal slope of the bridge. The number of water inlets corresponding to the first drainage sub-chamber is 3-5;

[0007] The second drainage compartment is located in the middle of the drainage compartment and is used to drain rainwater from the midstream road surface on the same longitudinal slope of the bridge.

[0008] The third drainage compartment is located inside the drainage compartment and is used to drain rainwater from the road surface downstream of the same longitudinal slope as the bridge;

[0009] The width of the first drainage compartment, the second drainage compartment and the third drainage compartment is between 15-25cm;

[0010] The present invention adopts this progressive structural layout type, and can discharge rainwater from the bridge deck in sections, in an orderly and rapid manner through the first drainage compartment, the second drainage compartment and the third drainage compartment, thereby avoiding the phenomenon of water backflow to the water inlet after the downstream drainage pipe is full.

[0011] Furthermore, the inner walls of the first drainage compartment, the second drainage compartment and the third drainage compartment are plastered with waterproof mortar and then coated with waterproof material, which can avoid water damage to the bridge structure caused by rainwater leakage and protect the main structure of the bridge.

[0012] Furthermore, the water inlet includes a water inlet curb and a filter grate. The water inlet curb is a 100 cm long curb made of concrete or natural stone. The filter grate is a vertical grate made of ductile iron or stainless steel. The filter grate is fixed to the water inlet outside the water inlet curb.

[0013] Furthermore, the water intakes are correspondingly connected to the first drainage sub-compartment, the second drainage sub-compartment, and the third drainage sub-compartment, wherein the spacing between the water intakes connected to the first drainage sub-compartment is 12 to 15 meters, the spacing between the water intakes connected to the second drainage sub-compartment is 10 to 12 meters, and the spacing between the water intakes connected to the third drainage sub-compartment is 8 to 10 meters. The number of water intakes connecting the first drainage sub-compartment, the second drainage sub-compartment, and the third drainage sub-compartment increases successively; the "sparse at the top and dense at the bottom" water intake arrangement pattern can discharge rainwater that is not discharged into the water intake from the upstream bridge deck but flows downstream at the downstream water intake, thereby improving the overall drainage capacity of the bridge deck.

[0014] Furthermore, the movable cover is composed of a concrete precast slab, a leveling layer and a road slab pavement layer arranged in sequence from bottom to top. A stainless steel frame is provided on the outside of the concrete precast slab. The leveling layer is M10 cement mortar. The road slab pavement layer is permeable bricks or stone bricks laid in sequence. Open ear holes are provided at the four corners of the top surface of the stainless steel frame. The use of this openable cover facilitates the later maintenance of the drainage compartment. By setting the same pavement layer as the sidewalk area without drainage compartments, the overall uniformity and beauty of the bridge sidewalk are ensured.

[0015] Furthermore, the inner side of the filter screen has an anti-blocking structure, which includes a connecting block, a movable shaft, a slide bar A, a slide bar B, a garbage collection box, a connecting block, and a filter screen;

[0016] The connecting block is located on the inner side of the filter screen and is welded to it. The end of the connecting block is embedded in the top of the slide rod A and is connected and limited by a movable shaft to achieve rotation connection. The movable shaft enables the slide rod A to realize the linkage of the garbage collection box.

[0017] The top of the garbage collection box and the connecting block are an integrally formed structure, and the bottom of the slide bar B is provided with a connecting shaft for rotation. The garbage collection box can realize angle adjustment through the connecting shaft, so that the bottom of the garbage collection box is always kept parallel to the ground, thereby blocking the garbage attached to the rainwater entering the water collection port to avoid clogging of the water collection port. The connecting shaft passes through the connecting block and is rotatably connected to the garbage collection box. The top of the slide bar B is provided with an integrally formed slider, and the two ends of the slider are respectively fitted on both sides of the slide bar A and slidably connected thereto, and a plurality of limit blocks for positioning are fixed near the positions of the two ends of the slide bar A. When the filter grate is removed to clean the garbage inside, the filter grate is raised and the slider slides downward, so that the total length of the slider B and the slider A is extended, so that the garbage collection box is always fitted on the ground, and the garbage inside the garbage collection box is prevented from falling when the filter grate is lifted, and the slider is blocked by the limit block when it slides to the position of the end of the slide bar A to prevent the slider from derailing.

[0018] The filter is located on the side of the garbage collection box for filtering road garbage, and a plurality of drainage grooves for filtering are provided at the bottom of the garbage collection box.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention has a reasonable structure, high drainage capacity, and convenient construction and maintenance. It diverts rainwater from the bridge deck to the municipal rainwater pipe network, thus preventing rainwater from being directly discharged into rivers and polluting water bodies, or adversely affecting traffic on the road under the bridge.

[0021] 2. By setting up multiple drainage compartments, rainwater on the bridge deck is drained in an orderly and segmented manner, which greatly improves the drainage efficiency of the bridge and effectively eliminates the impact of water on the bridge surface on driving safety. At the same time, it prevents rainwater from stagnating and seeping into the bridge to cause damage, thereby extending the life of the bridge.

[0022] 3. By setting up an openable cover, the drainage compartment can be quickly desilted, unblocked and other maintenance work can be carried out, reducing the subsequent maintenance costs and pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall distribution of the present invention;

[0024] Figure 2 This is a schematic elevation diagram of the structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the water inlet structure of the present invention;

[0026] Figure 4 This is a cross-sectional view of the water inlet structure of the present invention;

[0027] Figure 5This is a cross-sectional view of the movable cover structure of the present invention;

[0028] Figure 6 A top view of the movable cover of the present invention;

[0029] Figure 7 This is a three-dimensional schematic diagram of the anti-blocking structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the explosion-proof structure of the present invention.

[0031] In the figure: 1. Drainage chamber; 11. First drainage compartment; 12. Second drainage compartment; 13. Third drainage compartment; 2. Water inlet; 21. Water inlet curb; 22. Filter grate; 221. Connecting block; 222. Movable shaft; 223. Slide bar A; 224. Limiting block; 225. Slide bar B; 226. Slider; 227. Connecting shaft; 230. Garbage collection box; 231. Connecting block; 232. Filter screen; 233. Drain trough; 3. Removable cover; 31. Precast concrete slab; 311. Stainless steel frame; 312. Opening ear hole; 32. Leveling layer; 33. Road slab paving layer. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] See also Figure 1-8The present invention provides a technical solution: a compartment-type efficient bridge deck drainage system for long urban bridges, characterized by comprising a drainage chamber 1 located in the sidewalks on both sides of the bridge and extending along the length of the bridge, a plurality of water inlets 2 provided inside the drainage chamber 1 and spaced apart along the length of the bridge, and a movable cover 3 provided above the drainage chamber 1. The drainage system is composed of the drainage chamber 1, the water inlets 2, and the movable cover 3. The present invention has a reasonable structure, can effectively utilize the internal space of the sidewalks, and does not affect the overall structure and landscape of the bridge.

[0036] The drainage compartment 1 includes a first drainage sub-compartment 11, a second drainage sub-compartment 12, and a third drainage sub-compartment 13. The first drainage sub-compartment 11, the second drainage sub-compartment 12, and the third drainage sub-compartment 13 are rectangular channels arranged side by side along the same longitudinal slope direction and the ends are independently connected to the municipal rainwater inspection well. The rainwater on the bridge deck is drained to the municipal rainwater pipe network to avoid pollution of the river water under the bridge or adverse effects on the traffic on the road under the bridge, effectively avoiding the formation of water film on the road surface, thereby reducing the probability of accidents.

[0037] Furthermore, the first drainage compartment 11 is provided outside the drainage compartment 1 and is used to drain rainwater from the upstream bridge section on the same longitudinal slope of the bridge. The number of the first drainage compartment 11 corresponding to the water inlet 2 is 3-5.

[0038] The second drainage compartment 12 is located in the middle of the drainage compartment 1 and is used to drain rainwater from the middle stream of the same longitudinal slope of the bridge.

[0039] The third drainage compartment 13 is located inside the drainage compartment 1 and is used to drain rainwater from the road surface downstream of the same longitudinal slope as the bridge;

[0040] The width of the first drainage compartment 11, the second drainage compartment 12 and the third drainage compartment 13 is between 15-25 cm;

[0041] The present invention adopts this progressive structural arrangement type, and can discharge rainwater from the bridge deck in sections, in an orderly and rapid manner through the first drainage compartment 11, the second drainage compartment 12 and the third drainage compartment 13, thereby avoiding the phenomenon of water backflow to the water inlet after the downstream drainage pipe is full.

[0042] Furthermore, the inner walls of the first drainage compartment 11, the second drainage compartment 12 and the third drainage compartment 13 are plastered with waterproof mortar and then coated with waterproof material, which can prevent water damage to the bridge structure caused by rainwater leakage and protect the main structure of the bridge.

[0043] Furthermore, the water inlet 2 includes an inlet curb 21 and a filter grate 22. The inlet curb 21 is a 100 cm long curb made of concrete or natural stone. The filter grate 22 is a vertical grate made of ductile iron or stainless steel. The filter grate 22 is fixed to the water inlet outside the inlet curb 21.

[0044] Furthermore, the water inlets 2 are correspondingly connected to the first drainage sub-compartment 11, the second drainage sub-compartment 12, and the third drainage sub-compartment 13, wherein the spacing between the water inlets 2 connected to the first drainage sub-compartment 11 is 12 to 15 meters, the spacing between the water inlets 2 connected to the second drainage sub-compartment 12 is 10 to 12 meters, and the spacing between the water inlets 2 connected to the third drainage sub-compartment 13 is 8 to 10 meters. The number of water inlets 2 connecting the first drainage sub-compartment 11, the second drainage sub-compartment 12, and the third drainage sub-compartment 13 increases successively; the "sparse at the top and dense at the bottom" water inlet arrangement pattern can discharge rainwater that is not discharged into the water inlet from the upstream bridge deck but flows downstream at the downstream water inlet, thereby improving the overall drainage capacity of the bridge deck.

[0045] Furthermore, the movable cover 3 is composed of a precast concrete panel 31, a leveling layer 32 and a slab pavement layer 33 arranged in sequence from bottom to top. A stainless steel frame 311 is provided on the outside of the precast concrete panel 31. The leveling layer 32 is M10 cement mortar. The slab pavement layer 33 is permeable bricks or stone bricks laid in sequence. Open ear holes 312 are provided at the four corners of the top surface of the stainless steel frame 311. The use of this openable cover facilitates the later maintenance of the drainage compartment. By setting the same paving layer as the sidewalk area without drainage compartments, the overall uniformity and beauty of the bridge sidewalk are ensured.

[0046] Furthermore, the inner side of the filter screen 22 has an anti-blocking structure, which includes a connecting block 221, a movable shaft 222, a slide bar A 223, a slide bar B 225, a garbage collection box 230, a connecting block 231, and a filter screen 232;

[0047] The connecting block 221 is located on the inner side of the filter screen 22 and is welded to it. The end of the connecting block 221 is embedded in the top of the slide rod A223 and is connected and limited by the movable shaft 222 to achieve rotational connection. The movable shaft 222 enables the slide rod A223 to realize the linkage with the garbage collection box 230.

[0048] The top of the garbage collection box 230 and the connecting block 231 are an integrally formed structure. The bottom of the slide bar B225 has a connecting shaft 227 for rotation. The garbage collection box 230 can be adjusted in angle through the connecting shaft 227 to ensure that the bottom of the garbage collection box 230 is always parallel to the ground, thereby blocking the garbage attached to the rainwater entering the water inlet 2 and avoiding clogging of the water inlet. The connecting shaft 227 passes through the connecting block 231 and is rotatably connected to the garbage collection box 230. The top of the slide bar B225 has an integrally formed slider 226, and the two ends of the slider 226 are respectively fitted on the slide. The two sides of the rod A223 are slidably connected to it, and a plurality of limit blocks 224 for positioning are fixed near the two ends of the slide bar A223. When the filter grate 22 is removed to clean the garbage inside, the filter grate 22 is raised and the slide block 226 slides downward, thereby extending the total length of the slide bar B225 and the slide bar A223, so that the garbage collection box 230 is always in contact with the ground, preventing the garbage inside the garbage collection box 230 from falling when the filter grate 22 is raised, and when the slide block 226 slides to the position of the end of the slide bar A223, it is blocked by the limit block 224 to prevent the slide block 226 from derailing;

[0049] The filter screen 232 is located on the side of the garbage collection box 230 for filtering garbage on the road, and a plurality of drain grooves 233 for filtering are provided at the bottom of the garbage collection box 230.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A compartment-type efficient bridge deck drainage system for long urban bridges, characterized by: The invention comprises a drainage chamber (1) located in the sidewalks on both sides of the bridge and extending along the length direction of the bridge, a plurality of water inlets (2) arranged inside the drainage chamber (1) and spaced apart along the length direction of the bridge, and a movable cover plate (3) arranged above the drainage chamber (1); a drainage system is formed by the drainage chamber (1), the water inlets (2) and the movable cover plate (3); The drainage chamber (1) comprises a first drainage sub-chamber (11), a second drainage sub-chamber (12), and a third drainage sub-chamber (13); the first drainage sub-chamber (11), the second drainage sub-chamber (12), and the third drainage sub-chamber (13) are rectangular channels arranged side by side along the same longitudinal slope direction and the ends of which are independently connected to a municipal rainwater inspection well; The water inlet (2) includes a water inlet side stone (21) and a filter screen (22). The inner side of the filter screen (22) has an anti-blocking structure, which includes a connecting block (221), a movable shaft (222), a slide bar A (223), a slide bar B (225), a garbage collection box (230), a connecting block (231), and a filter screen (232). The connecting block (221) is located on the inner side of the filter screen (22) and is welded thereto. The end of the connecting block (221) is embedded in the top of the slide bar A (223) and is connected and limited by the movable shaft (222) to achieve rotational connection. The top of the garbage collection box (230) and the connecting block (231) are integrally formed structures. The bottom of the slide bar B (225) has a connecting shaft (227) for rotation. The connecting shaft (227) passes through the connecting block (231) and is rotatably connected to the garbage collection box (230). The top of the slide bar B (225) has an integrally formed slider (226). The two ends of the slider (226) are respectively attached to the two sides of the slide bar A (223) and are slidably connected thereto. A plurality of limit blocks (224) for positioning are fixed near the two ends of the slide bar A (223). The filter (232) is located on the side of the garbage collection box (230) and is used to filter road garbage, and a plurality of drainage grooves (233) for filtering are provided at the bottom of the garbage collection box (230).

2. The high-efficiency bridge deck drainage system with compartments for long urban bridges according to claim 1 is characterized by: The first drainage sub-chamber (11) is arranged outside the drainage chamber (1) and is used to drain rainwater from the road surface of the upstream bridge section on the same longitudinal slope of the bridge. The number of the first drainage sub-chamber (11) corresponding to the water inlet (2) is 3-5; The second drainage compartment (12) is located in the middle of the drainage compartment (1) and is used to drain rainwater from the midstream road surface on the same longitudinal slope of the bridge; The third drainage compartment (13) is provided inside the drainage compartment (1) and is used to drain rainwater from the road surface downstream of the same longitudinal slope as the bridge; The widths of the first drainage compartment (11), the second drainage compartment (12), and the third drainage compartment (13) are between 15 and 25 cm.

3. The high-efficiency bridge deck drainage system with compartments for long urban bridges according to claim 1 is characterized by: The inner walls of the first drainage compartment (11), the second drainage compartment (12) and the third drainage compartment (13) are plastered with waterproof mortar and then coated with waterproof material.

4. The high-efficiency bridge deck drainage system with compartments for long urban bridges according to claim 1 is characterized by: The water inlet side stone (21) is a 100 cm long curb stone made of concrete or natural stone, and the filter grate (22) is made of ductile iron. The filter grate (22) is fixed to the water inlet outside the water inlet side stone (21).

5. The high-efficiency bridge deck drainage system with compartments for long urban bridges according to claim 1 is characterized by: The water inlets (2) are connected to the first drainage compartment (11), the second drainage compartment (12), and the third drainage compartment (13), wherein the water inlets (2) connected to the first drainage compartment (11) are spaced 12 to 15 meters apart, the water inlets (2) connected to the second drainage compartment (12) are spaced 10 to 12 meters apart, and the water inlets (2) connected to the third drainage compartment (13) are spaced 8 to 10 meters apart.

6. The high-efficiency bridge deck drainage system with compartments for long urban bridges according to claim 1 is characterized by: The movable cover plate (3) is composed of a concrete precast plate (31), a leveling layer (32) and a road slab paving layer (33) arranged in sequence from bottom to top. A stainless steel frame (311) is arranged on the outside of the concrete precast plate (31). The leveling layer (32) is M10 cement mortar. The road slab paving layer (33) is permeable bricks or stone bricks paved in sequence. Open ear holes (312) are provided at the four corners of the top surface of the stainless steel frame (311).

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