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A drainage layout structure and drainage method for tunnel exits and entrances

A technology for arranging structures and entrances. It is used in drainage, safety devices, earth-moving drilling, etc. It can solve problems such as hidden dangers in tunnel operation and management, and achieve the effect of structural safety and reliability.

Active Publication Date: 2016-04-06
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the tunnel was opened to traffic, it was found that every time it rained, a large amount of rainwater would pour into the lowest part of the tunnel from the exit and entrance, and the waste water pumping room became a rainwater pumping room, which brought safety hazards to the operation and management of the tunnel.

Method used

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  • A drainage layout structure and drainage method for tunnel exits and entrances
  • A drainage layout structure and drainage method for tunnel exits and entrances
  • A drainage layout structure and drainage method for tunnel exits and entrances

Examples

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Embodiment 1

[0017] Embodiment one: if figure 1 As shown, this embodiment is applied to the drainage system in the tunnel, and the arrows in the figure indicate the flow direction of rainwater, that is, from the exit and entrance of the tunnel to the road inside the tunnel.

[0018] This embodiment is specifically arranged according to the following steps:

[0019] 1. In the direction of the road shown in the figure, firstly set a transversely penetrating cross-cutting ditch 10. The cross-cutting ditch 10 is covered with a cross-cutting ditch cover plate 1, and the cross-cutting ditch cover plate 1 is provided with a number of drainage holes in the shape of narrow and long holes. holes 7, wherein the drainage holes 7 are arranged at an oblique angle of 30° along the direction of the road in the tunnel shown in the figure, that is, as figure 1 , 3 The centerline of the length direction of the long and narrow drain hole 7 shown has an angle of 30° with the direction of the road in the tunn...

Embodiment 2

[0023] Embodiment 2: Compared with Embodiment 1, this embodiment is different in that: the drainage holes are arranged at an oblique angle to the direction of the road shown in the illustration. Adopted in the present embodiment is: the center line of the length direction of the drain hole 7 is parallel to the road direction, that is, as figure 2 The style of the cross-cut ditch cover plate is shown, and then the overall cross-cut ditch plate is inclined by 30° to meet the requirement of oblique arrangement with the road direction. In the same way, the arrangement position of the drainage hole 2 remains unchanged, but the angle and position of the cross-cut ditch cover plate 3 can also be selected as required.

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Abstract

The invention relates to the field of infrastructural project construction, in particular to a drainage arrangement structure for a tunnel exit and a tunnel entrance and a drainage method thereof. The drainage arrangement structure for the tunnel exit and the tunnel entrance and the drainage method thereof are characterized in that drain holes are long and narrow slot holes; and center lines of the slot holes in a length direction and the tunnel in the road direction form an oblique angle of 30-60 degrees. The drainage arrangement structure for the tunnel exit and the tunnel entrance and the drainage method thereof have the advantages that after a long and narrow open area on a cover plate inclines by 30-60 degrees in the flow direction, water flow is stopped by the opened holes, some water flow is stopped by a plurality of opened holes, so that the damming effect is greatly superior to that of a traditional opening form; and therefore the open area only rotates about 30-60 degrees, the structure of the whole cover plate is safe and reliable.

Description

technical field [0001] The invention relates to the field of infrastructure engineering construction, in particular to a drainage arrangement structure and a drainage method for tunnel exits and entrances. Background technique [0002] After the tunnel was opened to traffic, it was found that every time it rained, a large amount of rainwater would pour into the lowest part of the tunnel from the exit and entrance, and the waste water pump room became a rainwater pump room, which brought safety hazards to the operation and management of the tunnel. At present, in order to prevent road rainwater from entering the buried section of the tunnel, there are multiple cross-cutting trenches at the exit and entrance of the tunnel. The openings of the cross-cutting trench cover plates are generally along the direction of water flow. This arrangement will always Part of the water flows over the transversal ditch. [0003] The narrow and long openings on the cover plate of the tradition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02
Inventor 郭志清李胜杰周湧向恒飞
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE