Bridge deck drainage and leak prevention pipes
By pre-installing drainage pipes in the concrete pavement of the bridge deck and setting up retaining grooves, reinforcing pipes, and edge caps, the problem of poor bonding between the drainage pipes and the concrete was solved, achieving the bridge's anti-leakage and drainage effect, and improving the bridge's service life and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG YAOSHI CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-30
AI Technical Summary
The existing bridge deck drainage pipes are not tightly bonded to the bridge deck concrete, causing water to leak out, which poses a risk of water accumulation and icicles under the bridge, affecting the bridge's lifespan and safety.
The drainage pipe body is pre-installed in the concrete pavement of the bridge deck, and multiple annular retaining grooves are set on it. Combined with reinforcing pipes and edge caps, it is ensured that the drainage pipe is tightly bonded to the concrete to prevent water leakage.
This design achieves a tight bond between the drainage pipe and the concrete, preventing water leakage, water accumulation on the wing plates, and the formation of icicles, thereby improving the bridge's lifespan and pedestrian safety.
Smart Images
Figure CN224431234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bridge deck drainage systems, and in particular to a bridge deck drainage and leak-proof pipe. Background Technology
[0002] To prevent water accumulation on bridge surfaces, multiple drainage pipes need to be installed to drain water from the bridge deck promptly. Currently, these drainage pipes are installed by embedding them in pre-drilled holes in the bridge deck. However, the gaps between the holes and the pipes are too large, preventing the concrete from tightly encasing the pipes. This allows some water to seep through the gaps on the outside of the pipes to the bridge's underside, leaving water marks on the underside and affecting their lifespan. Furthermore, in cold weather, this can cause icicles to form and fall, posing a risk of injury. Therefore, the existing drainage pipe structure has significant flaws and needs improvement. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a bridge deck drainage and leak-proof water pipe that is pre-installed during bridge deck paving and can be tightly bonded to the bridge deck concrete to prevent water leakage.
[0004] The technical solution adopted by this utility model is as follows: a bridge deck drainage and leak-proof drain pipe is provided, including a drain pipe body pre-installed in the concrete pavement of the bridge deck; the drain pipe body extends from the bridge deck to the area under the bridge; multiple retaining grooves are distributed from top to bottom on the upper part of the drain pipe body; the retaining grooves are annular and coaxially corresponding to the drain pipe body; the retaining grooves are recessed into the drain pipe body.
[0005] To further optimize this technical solution, the drainage and anti-leakage pipe on the bridge deck should have at least four retaining grooves.
[0006] To further optimize this technical solution, a reinforcing pipe is integrally sleeved on the lower side of the inner part of the bridge deck drainage and leak-proof drain pipe.
[0007] To further optimize this technical solution, an edge cap is integrally fitted onto the upper side of the outer side of the drainage pipe body of the bridge deck drainage and leak-proof drain pipe.
[0008] The beneficial effects of this utility model are as follows:
[0009] The main body of the drainage pipe is pre-installed during the concrete paving of the bridge deck. The multiple retaining grooves on the upper part of the drainage pipe body make the drainage pipe body and the concrete more tightly bonded, avoiding obvious gaps between the drainage pipe body and the bridge deck concrete. After the water on the bridge surface flows into the drainage pipe body, it can flow away directly without leaking from other places, thus avoiding the occurrence of the "urine eaves" phenomenon of the wing plate. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] In the diagram, 1 is the drain pipe body; 2 is the retaining groove; 3 is the reinforcing pipe; and 4 is the edge cap. Detailed Implementation
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0013] like Figure 1 As shown, the bridge deck drainage and leak-proof drain pipe includes a drain pipe body 1 pre-installed in the concrete pavement of the bridge deck; the drain pipe body 1 extends from the bridge deck to the underside of the bridge; the upper part of the drain pipe body 1 has multiple retaining grooves 2 distributed from top to bottom; the retaining grooves 2 are annular and coaxial with the drain pipe body 1; the retaining grooves 2 are recessed into the drain pipe body 1.
[0014] The multiple retaining grooves 2 on the upper part of the drainage pipe body 1 ensure a tighter bond between the drainage pipe body 1 and the concrete. This avoids the gaps that can easily exist between the drainage pipe and the pre-drilled holes, which is a common problem in traditional construction methods where holes are pre-drilled and then buried. This allows rainwater from the bridge surface to flow directly into the PVC pipe connected to the socket under the bridge after entering the drainage pipe body 1, guiding the rainwater into the waterway. The diverted water will not leak out, preventing the "embankment" phenomenon on the bridge wing and avoiding the problem of icicles forming and falling in cold weather, thus improving the lifespan of the bridge wing and enhancing pedestrian safety. To ensure durability, the drainage pipe body 1 is preferably made of corrosion-resistant and aging-resistant materials, such as stainless steel and aluminum alloy; cast iron is not recommended.
[0015] In addition, the retaining groove 2 is a structure that is recessed into the body of the drain pipe 1. After the bridge deck concrete solidifies, this structure can firmly fix the body of the drain pipe 1 to the bridge deck, and it also has a strong ability to resist external impact. When subjected to external impacts such as traffic on the bridge deck, it can still ensure the firmness of the drain pipe body 1 and ensure the long-term reliability of the function of guiding and discharging accumulated water.
[0016] In this scheme, the dimensions of the drainage pipe body 1 and the retention groove 2 are not specifically limited, and can be selected by those skilled in the art according to the construction requirements of the bridge.
[0017] like Figure 1 As shown, at least four retaining grooves 2 are provided. The number of retaining grooves 2 ensures a strong "interlocking" connection with the bridge deck concrete.
[0018] like Figure 1 As shown, a reinforcing tube 3 is integrally sleeved on the lower side of the inside of the drain pipe body 1. The reinforcing tube 3 can improve the impact resistance and compression resistance of the drain pipe body 1.
[0019] like Figure 1As shown, an edge cap 4 is integrally fitted onto the upper outer side of the drain pipe body 1. The edge cap 4 can conveniently limit the installation depth of the drain pipe body 1 during construction and installation.
[0020] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.
Claims
1. A bridge deck drainage and leak-proof pipe, characterized in that: It includes a drainage pipe body (1) pre-installed in the concrete pavement of the bridge deck; the drainage pipe body (1) extends from the bridge deck to the underside of the bridge; the upper part of the drainage pipe body (1) has multiple retaining grooves (2) distributed from top to bottom; the retaining grooves (2) are annular and coaxial with the drainage pipe body (1); the retaining grooves (2) are recessed into the drainage pipe body (1).
2. The bridge deck drainage and leak-proof pipe according to claim 1, characterized in that: The retention groove (2) is set to at least 4.
3. The bridge deck drainage and leak-proof pipe according to claim 1, characterized in that: The drain pipe body (1) has a reinforcing pipe (3) integrally sleeved on the lower side inside.
4. The bridge deck drainage and leak-proof pipe according to claim 1, characterized in that: The upper side of the drain pipe body (1) is integrally fitted with an edge cap (4).