Frost damage prevention drainage system for tunnel

A drainage system and tunnel technology, applied in drainage, safety devices, mining equipment, etc., can solve problems such as tunnel lining structure damage, tunnel arch ice hanging, endangering driving safety, etc., to achieve good reliability, ensure driving safety, implement easy effect

Active Publication Date: 2012-09-12
中铁十一局集团第五工程有限公司 +1
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Problems solved by technology

[0002] Tunnels built in northern my country and high-altitude cold areas, when winter comes, due to low temperature, the water flow is easy to freeze and block the drainage pipes, which will cause ice on the arch of the tunnel, ice on the side wall, ice on the network cable equipment in the cave, and surrounding rocks. Frost heaving, lining swell

Method used

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  • Frost damage prevention drainage system for tunnel
  • Frost damage prevention drainage system for tunnel
  • Frost damage prevention drainage system for tunnel

Examples

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[0016] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0017] Such as figure 1 As shown, the ring wall of the tunnel includes the primary support layer 1 and the secondary lining concrete layer 2. The secondary lining concrete layer 2 is located inside the primary support layer 1, and the lower part of the secondary lining concrete layer 2 has a bottom plate 3. The arrangement of the initial supporting layer 1, the secondary lining concrete layer 2 and the bottom plate 3 is the same as that of the prior art, and will not be repeated here.

[0018] Such as figure 1 As shown, a thermal insulation deep-buried water trench 6 is set directly below the invert portion of the initial support layer 1, and the thermal insulation deep-buried water trench 6 extends along the length of the tunnel. The depth of the thermal insulation deep-buried water trench 6 buried in the ground depends on the local The extreme minimum temperature is de...

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PUM

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Abstract

The invention discloses a frost damage prevention drainage system for a tunnel. A heat-insulating buried water trench (6) is arranged below a primary support layer (1); multi-section draining pipes (7) are arranged in the heat-insulating buried water trench (6); an inspection shaft (8) is arranged between two adjacent draining pipes (7); the lower end of the inspection shaft (8) is communicated with the draining pipe (7); waterproof plates (11) are fully paved between the primary support layer (1) and a secondary lining concrete layer (2); annular punching bellows (12) and longitudinal punching bellows (13) are arranged on the outer sides of the waterproof plates (11); and openings at the lower ends of the annular punching bellows (12) are positioned in a gravel water seepage layer (10). According to the frost damage prevention drainage system disclosed by the invention, the phenomenon that the draining pipeline of a tunnel drainage system is blocked in severe cold regions due to freezing can be effectively prevented, the damage to a tunnel lining structure is avoided, the driving safety is ensured and the cleaning and maintaining expenses during operation are greatly reduced. The frost damage prevention drainage system has the characteristics of simple structure, easiness in implementation, favorable reliability, easiness in popularization and the like.

Description

technical field [0001] The invention belongs to the technical field of tunnel waterproofing and drainage, and in particular relates to a tunnel antifreezing damage drainage system applied in severe cold regions. Background technique [0002] Tunnels built in northern my country and high-altitude cold areas, when winter comes, due to low temperature, the water flow is easy to freeze and block the drainage pipes, which will cause ice on the arch of the tunnel, ice on the side wall, ice on the network cable equipment in the cave, and surrounding rocks. Frost heaving, lining swelling, ice cones at the bottom of the tunnel, ice plugs in water ditches, frozen lines, etc. not only cause damage to the tunnel lining structure, but also cause boundary violations, endangering driving safety. Cleaning and maintaining the frost-damaged surface of the tunnel lining will be costly and difficult, and will not solve the fundamental problem. Contents of the invention [0003] The technical ...

Claims

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Application Information

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IPC IPC(8): E21F16/02
Inventor 李勇王元清胡家玲管强
Owner 中铁十一局集团第五工程有限公司
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