Bridge road drainage structure

By setting installation holes and installing vertical drainage pipes and support cages on bridges and roads, and utilizing a combination of permeable geotextile and permeable asphalt layers, the problem of poor water collection effect of vertical drainage pipes was solved, achieving efficient water collection and drainage, and improving the safety of bridges and roads.

CN224531443UActive Publication Date: 2026-07-21JIANGXI ZHENRAO CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI ZHENRAO CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-10-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The vertical drainage pipes on bridges and roads have a weak water collection effect, making it difficult to quickly resolve water accumulation on the road surface, which affects the safety of vehicles and pedestrians.

Method used

Installation holes are set on the main beam, and vertical drainage pipes and support cages are installed. The support cage is covered with permeable geotextile, and a permeable asphalt layer is laid on the upper surface of the main beam. The permeable asphalt layer and the support cage cover each other, and the support cage forms a water collection effect. Rainwater enters the vertical drainage pipe through the water inlet window.

Benefits of technology

It achieves efficient water collection, improves the drainage capacity of bridges and roads, and ensures the safety of vehicles and pedestrians.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224531443U_ABST
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Abstract

The application discloses a bridge road drainage structure, a lower section pipe is connected to a main drainage pipe by extending downward through a mounting hole, and the outer surface of a supporting cage is covered with water-permeable geotextile; the supporting cage is arranged on the upper surface of a beam body and is sleeved on the lower part of the upper section pipe in the height direction; the bridge road drainage structure is provided with a drainage assembly corresponding to the mounting hole; the drainage assembly comprises a vertical drainage pipe and a supporting cage which is in the form of a plate as a whole; the outer surface of the supporting cage is covered with water-permeable geotextile, thereby providing the effect of separation and water permeability; the supporting cage is arranged on the upper surface of the beam body and is sleeved on the lower part of the upper section pipe in the height direction; the rainwater on the upper part of the water-permeable asphalt layer enters the top of the vertical drainage pipe and is drained; the infiltrated rainwater enters the range of the supporting cage; the supporting cage forms structural support, and the range occupied by the supporting cage can form a water collecting effect; the rainwater collected at the supporting cage can enter the vertical drainage pipe through the water inlet window, thereby realizing efficient water collecting effect.
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