Design for drain hole of bridge opening

A technology of drainage holes and large drainage holes, used in waterway systems, water supply devices, sewer systems, etc., can solve problems such as blockage of bridge drainage pipes, and achieve the effect of reducing blockage, reducing burden, and reducing sediment entering the drainage pipes.

Inactive Publication Date: 2012-02-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the problem of blockage of the drainage pipe of the bridge hole

Method used

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  • Design for drain hole of bridge opening
  • Design for drain hole of bridge opening

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Embodiment Construction

[0009] specific implementation plan

[0010] The drainage design of the drainage holes in the bridge tunnel is designed to be arc-shaped (1) consistent with the shape of the bridge bottom. The bottom drainage hole (2) is designed with a smaller diameter, and the upper drainage hole (6) is designed with a larger diameter. The number of holes depends on the size of the bridge hole and the water supply area. It is recommended that the maximum diameter of the hole should not exceed 20mm.

[0011] The recommended design is: 5 rows of drainage holes with a diameter of 2mm and a spacing of 5mm; 4 rows of drainage holes with a diameter of 4mm and a spacing of 7mm; 3 rows of drainage holes with a diameter of 8mm and a spacing of 12mm; 2 rows of drainage holes with a diameter of 16mm , The spacing between the holes is 20mm. If the incoming water surface is large and the average annual rainfall is large, the number of 16mm drainage holes can be appropriately increased.

[0012] The sp...

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Abstract

The invention discloses a design for a drain hole of a bridge opening, relating to the field of municipal construction and aiming at solving the problem of blocking a drainage pipeline of the bridge opening. The bridge opening is easy to deposit lots of sundries due to low-lying points, and a rainwater drain hole is generally in a rectangle which is wider to cause leaves, sand, branches, paper scraps, small stone and the like to enter the drainage pipeline to partially and even wholly block the drainage pipeline to cause traffic jam due to waterlogging caused by unsmooth water flow. In the design for the drain hole of the bridge opening, the size of the drain hole is reduced so that large sundries are prevented from entering into the drainage pipeline. The drain hole is slightly higher than the ground so that sundries heavier than water can be deposited better; the drain hole is inclined so that a water outlet is lower than the water level, floating objects being on the water level and entering into the drainage pipeline are reduced, and more sand can be deposited. Due to the design of the drain hole of the bridge opening, the block phenomenon of the drainage pipeline can be effectively reduced, and the waterlogging risk of a city is reduced.

Description

technical field [0001] The invention relates to the design of the drainage hole of a bridge tunnel, which relates to the field of urban municipal construction, and in particular to the drainage project of a bridge tunnel in a city. Background technique [0002] The common rainwater drainage holes in the current cities are rectangular, and the rectangular shape is about 25 mm wide. The main problem is: leaves, silt, branches, paper scraps, small stones, etc. can enter the drainage pipe from the drainage hole. With the accumulation of debris in the drainage pipe, the subsequent sediment will further accumulate here. Since the sediment is relatively fine, it will act as a sealant, causing partial or even complete blockage of the drainage pipe, resulting in poor water flow and urban accumulation. water, causing waterlogging. [0003] The bottom of the bridge tunnel is generally arc-shaped, relatively low-lying, and the incoming water surface is large. It is easier to accumulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/00
Inventor 胡再国
Owner SICHUAN UNIV
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