A seepage-proof and drainage-type bridge deck

Abstract

This utility model discloses a seepage-proof and drainage-type bridge deck, relating to the field of bridge deck technology, aiming to solve the problem of poor drainage in some existing bridge decks. The key technical points are: it includes a concrete frame, with a limiting cavity surrounding the inner side of the concrete frame. Within the limiting cavity, there is a road surface whose top surface is lower than the cavity opening. A drainage section, with its top surface flush with the road surface and its inlet end communicating with the top surface, is embedded within the road surface. This utility model enhances the overall drainage and seepage-proof performance of the bridge deck through its structural design.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck technology, and more specifically, it relates to a seepage-proof and drainage-type bridge deck. Background Technology

[0002] Bridge deck, also known as roadway deck, is a load-bearing structure that directly bears the wheel pressure of vehicles. In its construction, it is usually integrally connected with the beam ribs and transverse diaphragms of the main beam. This not only transfers the vehicle load to the main beam, but also forms part of the main beam's cross section, ensuring the overall function of the main beam.

[0003] With the continuous improvement of productivity, the level of construction has also become higher and higher. In order to better utilize space, the use of viaducts and other structures in cities has become more and more common. While viaducts make full use of vertical space, some bridge decks have poor drainage performance, which makes it easy for water to accumulate on top of them. In the future, water may seep out and affect pedestrians passing below. Therefore, a structure is needed to solve the problem of poor drainage in some existing bridge decks.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a seepage-proof and drainage-type bridge deck.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a seepage-proof and drainage-type bridge deck, including a concrete frame, a limiting cavity is provided inside the concrete frame, a road body is provided inside the limiting cavity with its top surface lower than the opening of the limiting cavity, and a drainage part is embedded in the road body with its top surface flush with the limiting cavity and its water inlet end communicating with the top surface.

[0007] The present invention is further configured such that: the drainage part includes several water collection components that are hollow inside and open at the top, and several seepage drainage pipes buried in the road body are connected to the water collection components.

[0008] The present invention is further configured such that: the road body includes a concrete leveling layer, a crushed stone layer and a permeable asphalt layer arranged sequentially from bottom to top, and the seepage drainage pipe is buried in the crushed stone layer and the diameter of the seepage drainage pipe is smaller than the thickness of the crushed stone layer.

[0009] The present invention is further configured such that: a wire mesh is provided between the permeable asphalt layer and the crushed stone layer, and an epoxy asphalt layer is provided on the top surface of the concrete leveling layer that abuts against the bottom surface of the crushed stone layer.

[0010] The present invention is further configured such that: a drain pipe extending vertically downwards through the road body is fixedly connected to the inner bottom surface of the water collecting component; the top surface of the drain pipe is higher than the inner bottom surface of the water collecting component; a first water-absorbing and expanding sealing ring is fixedly connected to the joint between the drain pipe and the water collecting component near the top side; the single-sided cross-sectional shape of the first water-absorbing and expanding sealing ring is set as a sector with a central angle of 90°; the face where the right-angle side of the first water-absorbing and expanding sealing ring is located abuts against the inner bottom surface of the water collecting component and the outer wall of the drain pipe, respectively.

[0011] The present invention is further configured such that: an annular groove is provided on the concrete frame located below the water collection component, and a second water-absorbing and expanding sealing ring is embedded in the annular groove and fixed at the joint between the drain pipe and the water collection component.

[0012] The present invention is further configured such that: an installation groove is provided at the top opening of the water collection component, and a cast iron rain grate is detachably connected in the installation groove.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This design uses the opening of the limiting cavity to block water accumulation and reduce the amount of rainwater flowing out of the top surface of the road body. A drainage section with its top surface flush with the road body and its inlet end connected to the top surface is embedded in the road body. Under the action of the drainage section, the surface water on the road body is stably collected and drained away from the road body, reducing the amount of water accumulation in the road body and on the road surface, reducing the possibility of water seepage in the subsequent structure, and making the structure have good and stable seepage prevention and drainage functions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 A cross-sectional view of this utility model Figure 2 ;

[0020] Figure 6 for Figure 5 A magnified view of point C in the middle.

[0021] In the diagram: 1. Concrete frame; 2. Limiting cavity; 3. Water collection component; 4. Seepage drainage pipe; 5. Concrete leveling layer; 6. Crushed stone layer; 7. Permeable asphalt layer; 8. Wire mesh; 9. Epoxy asphalt layer; 10. Drainage pipe; 11. First water-absorbing and expanding sealing ring; 12. Ring groove; 13. Second water-absorbing and expanding sealing ring; 14. Installation groove; 15. Cast iron rain grate. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] A type of seepage-proof and drainage-type bridge deck, such as Figure 1 , Figure 5 and Figure 6 As shown, the structure includes a concrete frame 1, which comprises a steel frame and a concrete layer covering its outer side. A limiting cavity 2 is provided inside the concrete frame 1. The inner wall of the limiting cavity 2 is sprayed with a waterproof coating to enhance the overall seepage prevention performance of the structure. A road body with its top surface lower than the opening of the limiting cavity 2 is provided inside the limiting cavity 2. The opening of the limiting cavity 2 is 2cm higher than the top surface of the road body. This setting can block water accumulation and reduce the amount of rainwater flowing out of the top surface of the road body by means of the opening of the limiting cavity 2. A drainage part with its top surface flush with the road body and its water inlet end connected to the top surface is embedded in the road body. Under the action of the drainage part, the water accumulation on the road body is stably collected and drained away from the road body, reducing the amount of water accumulation in the road body and on the road body surface, reducing the possibility of water seepage in the subsequent overall structure, so that the overall structure has good and stable seepage prevention and drainage functions.

[0024] like Figures 2-6 As shown, the drainage section includes several water collection components 3 that are hollow inside and open at the top. Part of the rainwater on the top surface of the road body flows into the water collection component 3 through the top opening of the water collection component 3 and is temporarily stored there. The other part of the rainwater seeps into the road body. Several seepage drainage pipes 4 buried in the road body are connected to the water collection component 3. The water that seeps into the road body enters the seepage drainage pipe 4 under the action of capillary osmosis and is stably discharged into the water collection component 3 under the action of the seepage drainage pipe 4 and is temporarily stored there.

[0025] like Figures 2-6As shown, the road body includes, from bottom to top, a concrete leveling layer 5, a crushed stone layer 6, and a permeable asphalt layer 7. A drainage pipe 4 is buried within the crushed stone layer 6, and the diameter of the drainage pipe 4 is smaller than the thickness of the crushed stone layer 6. A wire mesh 8 is installed between the permeable asphalt layer 7 and the crushed stone layer 6. The wire mesh 8 provides support and separation, reducing the impact of the permeable asphalt layer 7 on the crushed stone layer 6, making the crushed stone layer 6 looser and increasing the voids within it. The good permeability of the permeable asphalt layer 7 ensures that water from the top surface of the road can better pass through it, reducing the amount of water remaining on the top surface. Water can stably enter the crushed stone layer 6. The water entering the crushed stone layer 6 can better contact the seepage drainage pipe 4 due to the gaps in the crushed stone layer 6 and enter the seepage drainage pipe 4, so that the seepage drainage pipe 4 can better realize the drainage of water. The top surface of the concrete leveling layer 5 is provided with an epoxy asphalt layer 9 that abuts against the bottom surface of the crushed stone layer 6. The epoxy asphalt layer 9 has good waterproof properties to enhance the overall waterproof and seepage prevention performance of the concrete leveling layer 5. This allows rainwater falling on the road surface to be stably blocked at the epoxy asphalt layer 9 and subsequently evaporated stably or drained away by the seepage drainage pipe 4, ensuring that the overall seepage prevention and drainage function of the structure is more stable.

[0026] like Figures 2-6 As shown, a drain pipe 10 extending vertically downwards through the road body is fixedly connected to the inner bottom surface of the water collection component 3 by means of adhesive bonding or other methods. The bottom of the drain pipe 10 is connected to a PVC pipe network for drainage. The drain pipe 10 is a PVC pipe, and its top surface is 2cm higher than the inner bottom surface of the water collection component 3. The drain pipe 10 is used to drain the accumulated water in the water collection component 3, reducing the amount of water remaining in the water collection component 3, ensuring that the water collection component 3 can still stably collect rainwater, thereby ensuring the drainage system. The overall drainage function is more stable. Adjacent water collection components 3 are connected by seepage drainage pipes 4. This arrangement makes the distribution of seepage drainage pipes 4 more uniform, allowing them to better drain water from the road body into the water collection components 3. On the other hand, when the drainage pipe 10 of the top water collection component 3 is insufficient, excess water in the water collection component 3 will flow through the seepage drainage pipe 4 to the water collection component 3 connected to it on the other side and be drained away through the drainage pipe 10 of that water collection component 3, making the overall drainage function of the structure more stable.

[0027] like Figures 2-6As shown, a first water-absorbing and expanding sealing ring 11 is fixedly connected to the joint between the drain pipe 10 and the water collection component 3 near the top side. The first water-absorbing and expanding sealing ring 11 is fixed to the drain pipe 10 and the water collection component 3 by adhesive. The cross-sectional shape of the first water-absorbing and expanding sealing ring 11 is set as a sector with a central angle of 90°. This setting allows the first water-absorbing and expanding sealing ring 11 to make more sufficient contact with the inner bottom surface of the water collection component 3 and the pipe wall of the drain pipe 10. The face containing the right angle side of the first water-absorbing and expanding sealing ring 11 is respectively connected to the inner bottom surface of the water collection component 3 and the outer surface of the drain pipe 10. The pipe walls abut against each other. An annular groove 12 is provided on the concrete frame 1 located below the water collection component 3. A second water-absorbing and expanding sealing ring 13 is embedded in the annular groove 12 and fixed at the joint between the drain pipe 10 and the water collection component 3. The second water-absorbing and expanding sealing ring 13 is fixed to the drain pipe 10 and the water collection component 3 by adhesive. The water-absorbing and expanding first water-absorbing and expanding sealing ring 11 and second water-absorbing and expanding sealing ring 13 are used to achieve auxiliary sealing at the joint between the drain pipe 10 and the water collection component 3, reduce the amount of water flowing out from the contact point between the drain pipe 10 and the water collection component 3, and further enhance the overall seepage prevention performance of the structure.

[0028] like Figures 2-6 As shown, the top opening of the water collection component 3 is provided with an installation groove 14, and a cast iron rain grate 15 is detachably connected in the installation groove 14. The installation groove 14 is used to stabilize and limit the cast iron rain grate 15, ensuring that the position of the cast iron rain grate 15 and its function are more stable. The cast iron rain grate 15 is used to cover the top of the water collection component 3 and also to prevent large-volume impurities from falling into the water collection component 3, thereby reducing the impact of large-volume impurities on the water collection component 3 and the drainage function of the drainage section.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A seepage-proof and drainage-type bridge deck, comprising a concrete frame (1), characterized in that: The concrete frame (1) is surrounded by a limiting cavity (2) on the inner side. The limiting cavity (2) is provided with a road body whose top surface is lower than the opening of the limiting cavity (2). A drainage part with its top surface flush with the limiting cavity (2) and its water inlet end connected to the top surface is embedded in the road body.

2. The seepage-proof and drainage-type bridge deck according to claim 1, characterized in that: The drainage section includes several water collection components (3) that are hollow inside and open at the top, and several seepage drainage pipes (4) buried in the road body are connected to the water collection components (3).

3. The seepage-proof and drainage-type bridge deck according to claim 2, characterized in that: The road body includes a concrete leveling layer (5), a crushed stone layer (6) and a permeable asphalt layer (7) arranged sequentially from bottom to top. The drainage pipe (4) is buried in the crushed stone layer (6) and the diameter of the drainage pipe (4) is smaller than the thickness of the crushed stone layer (6).

4. The seepage-proof and drainage-type bridge deck according to claim 3, characterized in that: A wire mesh (8) is provided between the permeable asphalt layer (7) and the crushed stone layer (6), and an epoxy asphalt layer (9) is provided on the top surface of the concrete leveling layer (5) that abuts against the bottom surface of the crushed stone layer (6).

5. A seepage-proof and drainage-type bridge deck according to claim 2, characterized in that: A drain pipe (10) extending vertically downwards through the road body is fixedly connected to the inner bottom surface of the water collection component (3). The top surface of the drain pipe (10) is higher than the inner bottom surface of the water collection component (3). A first water-absorbing and expanding sealing ring (11) is fixedly connected to the joint between the drain pipe (10) and the water collection component (3) near the top side. The single-sided cross-sectional shape of the first water-absorbing and expanding sealing ring (11) is set as a fan shape with a central angle of 90°. The face where the right angle side of the first water-absorbing and expanding sealing ring (11) is located abuts against the inner bottom surface of the water collection component (3) and the outer wall of the drain pipe (10).

6. The seepage-proof and drainage-type bridge deck according to claim 5, characterized in that: A ring groove (12) is provided on the concrete frame (1) located below the water collection component (3), and a second water-absorbing expansion sealing ring (13) is embedded in the ring groove (12) and fixed at the joint between the drain pipe (10) and the water collection component (3).

7. A seepage-proof and drainage-type bridge deck according to claim 2, characterized in that: The top opening of the water collection component (3) is provided with an installation groove (14), and a cast iron rain grate (15) is detachably connected in the installation groove (14).

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