Bridge hierarchical drainage system applied to steel bridge deck

Abstract

The present invention relates to a bridge hierarchical drainage system applied to a steel bridge deck and belongs to the bridge drainage field. The bridge hierarchical drainage system comprises drainage shallow channels, a plurality of vertically-arranged direct drainage pipes and centralized drainage pipes; the drainage shallow channels are located at two sides of the bridge deck; the water inlets of the direct drainage pipes and the centralized drainage pipes are located in the drainage shallow channels; the water inlets of the direct drainage pipes are higher than the groove bottoms of the drainage shallow channels and are lower than the groove surfaces of the drainage shallow channels; the water inlets of the centralized drainage pipes are lower than the groove bottoms of the drainage shallow channels; a water collection pipe distributed along the direction of a bridge is arranged at the lower side of the bridge deck; the lower ends of the centralized drainage pipes are connected with the water collection pipe; and the water collection pipe is connected with a wastewater treatment tank. With the bridge hierarchical drainage system of the invention adopted, rainwater on the deck can be quickly drained.

Description

technical field [0001] The invention relates to the field of bridge drainage, in particular to a bridge graded drainage system suitable for steel bridge decks. Background technique [0002] The drainage system of existing bridges is generally divided into direct drainage and centralized drainage. Direct drainage is to discharge the rainwater from the bridge deck directly to the bottom of the bridge through vertical drainage pipes; centralized drainage is to first flow the rainwater from the bridge deck into the vertical centralized drainage pipe. , and then collected into the vertical centralized drain through the three-way pipe, and finally discharged from the vertical concentrated drain. The direct drainage system can quickly discharge the rainwater on the bridge deck, but at the same time as the rainwater is discharged, the pollutants on the bridge deck will be discharged together with the rainwater, which will cause secondary pollution to the environment under the bridge...

AI Technical Summary

Problems solved by technology

The direct drainage system can quickly discharge the rainwater on the bridge deck, but at the same time as the rainwater is discharged, the pollutants on the bridge deck will be discharged together with the rainwater, which will cause secondary pollution to the environment under the bridge; centralized drainage is to drain the bridge deck The rainwater is collected into the vertical centralized drainage pipe, and then discharged to the ground drainage facilities, which has the advantage of protecting the environment. However, when the rainfall is large, it is limited by the cross-sectional area of ​​the vertical centralized drainage pipe and the water storage capacity of the ground sewage treatment system. , the rainwater cannot be drained in time, and it is easy to accumulate water on the bridge deck, which will affect the driving of vehicles

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