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Deep buried central gutterway inspection well structure for cold region tunnel

A technology for central water ditch and tunnel in cold area, applied in the direction of tunnel, tunnel lining, drainage, etc., can solve the problems of unfavorable thermal insulation and poor sealing, and achieve the effect of preventing heat transfer, ensuring thermal insulation effect, and isolating heat conduction.

Active Publication Date: 2015-05-13
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current inspection well structure is not well sealed, leaving air convection channels, which is not conducive to heat preservation. In order to overcome this problem, it is necessary to find a way from the basic method of heat conduction to obtain a fundamental breakthrough

Method used

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  • Deep buried central gutterway inspection well structure for cold region tunnel
  • Deep buried central gutterway inspection well structure for cold region tunnel
  • Deep buried central gutterway inspection well structure for cold region tunnel

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0024] combine figure 1 and figure 2 It can be seen that an inspection well structure for deep buried central ditch of tunnels in cold regions, in a variable cross-section inspection well arranged perpendicular to the central deep buried ditch 500, the upper cover 100 and the lower cover vertically placed on the shaft wall 400 A closed space 300 is formed between the plates 200; an airtight sealing mechanism (110 and 210) is provided at the junction of the upper cover plate and the lower cover plate and the well wall.

[0025] combine image 3 It can be seen that the airtight sealing mechanism (110 and 210) is a male-female paired engagement structure, that is, the male gasket placed on the lower part of the cover plate has a recess 002 of the female gasket arranged on the well wall. Convex 001.

[0026] A new type of inspection well structure used for the ...

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Abstract

The invention discloses a deep buried central gutterway inspection well structure for a cold region tunnel. The structure starts from a heat transfer fundamental form, adopts two layer cover plates (100, 200) and corresponding air impermeable sealing mechanisms (110, 210), and fully utilizes a confined space between the cover plates, so that the conduction effect is effectively lowered, and the convection effect is forcefully prevented. An enclosure space (300) between the two layer cover plates also has the heat insulation and preservation effect. According to the structure, the heat transfer from an inspection well to the tunnel is effectively prevented, the occurrence of the problem of the tunnel waterproof and drainage system failure caused by a frozen inspection well is prevented, and the cold region tunnel frost damage problem caused by the frozen inspection well is solved. Compared with an existing structure of the inspection well, the control on the heat convection of the deep buried central gutterway inspection well of the cold region tunnel is achieved, the fast heat conduction in a convection mode is prevented, and an example is provided for a waterproof and drainage design of the cold region tunnel.

Description

technical field [0001] The invention relates to the field of underground engineering, and is particularly suitable for the prevention and control of freezing damage in the inspection well of the deep-buried central ditch of tunnels in cold regions. Background technique [0002] my country's cold regions are widely distributed, during which the demand for transportation is strong, and tunnel engineering, as an effective means of crossing mountains and ridges, has been widely used in traffic engineering in cold regions. Frost damage to tunnels occurs from time to time, especially the tunnel freeze damage caused by the failure of the anti-drainage system, which brings great difficulties to the safe operation of the tunnel. One of the main factors leading to the failure of the tunnel waterproof and drainage system is the structure of the inspection well of the deep buried central ditch, so how to ensure the insulation effect of the inspection well has become an important content...

Claims

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Application Information

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IPC IPC(8): E21D11/38
CPCE21D11/38E21F16/02
Inventor 孙克国仇文革许炜萍徐雨平
Owner SOUTHWEST JIAOTONG UNIV
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