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An air curtain test device and test method for high-speed railway tunnels in cold regions

A high-speed railway and tunnel air technology, which is applied in the field of air curtain test equipment for high-speed railway tunnels in cold regions, can solve the problems of railway operation safety burial, safety hazards, tunnel structure damage, etc.

Active Publication Date: 2021-05-11
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The construction and operation of a large number of railway tunnels in cold regions shows that freezing damage caused by low temperature generally exists in existing railway tunnels. These freezing damages not only cause serious damage to the tunnel structure, but also pose a major safety hazard to the safety of railway operation

Method used

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  • An air curtain test device and test method for high-speed railway tunnels in cold regions
  • An air curtain test device and test method for high-speed railway tunnels in cold regions
  • An air curtain test device and test method for high-speed railway tunnels in cold regions

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Embodiment Construction

[0026] The present invention will be further explained in detail below in conjunction with the accompanying drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0027] like Figure 1-2 As shown, an air curtain test device for a high-speed railway tunnel in a cold area includes an air curtain machine, a lighting lamp 2, a camera device 3, a surrounding rock ground temperature control device 4, a jet fan 5, a temperature test point 6, a wind speed test point 7, and a refrigeration chamber 8. Tunnel 9 and other components. From the outside to the inside are the refrigeration room, the surrounding rock ground temperature control device and the tunnel. The tunnel is formed by the surrounding rock. In order to simulate the real tunnel ground temperature, the surrounding rock ground temperature control device includes a water storage space and a water pump. The water storage spa...

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Abstract

The invention relates to an air curtain test device for high-speed railway tunnels in cold regions, which includes a tunnel formed by surrounding rock, an air curtain machine for blocking air flow inside and outside the tunnel hole, and a surrounding rock ground temperature control device for controlling the ground temperature of the tunnel. The surrounding rock is placed in the refrigeration room, the surrounding rock ground temperature control device includes a water storage space and a water pump, the water storage space is set on the periphery of the tunnel, and the ground temperature of the tunnel is controlled by controlling the water temperature in the water storage space. Control the temperature of the refrigeration chamber to control the outside temperature of the tunnel, set a temperature test point in the surrounding rock, and set a wind speed test point in the tunnel hole. The invention provides test data and theoretical support for solving the freezing damage problem of tunnels in cold regions.

Description

technical field [0001] The invention relates to a test device, in particular to an air curtain test device and a test method for high-speed railway tunnels in cold regions. Background technique [0002] The number of tunnels built in high-altitude and high-latitude regions continues to increase, and the problem of freezing damage to tunnels in cold regions has become increasingly prominent. According to statistics on frost damage in Japan, Norway and China, there were 3819 railway tunnels in Japan (1999), 2135 tunnels suffered from frost damage, accounting for 56% of the total number of tunnels, and accidents that endanger driving safety due to frost damage in winter frequently occur. In Norway (1990), almost all the railway tunnels in Norway had various degrees of freezing damage such as lining cracking, hanging ice and icicles; in China (2014), there were 11,516 railway tunnels on the whole line, and 5,990 tunnels had freezing damage. , accounting for 52% of the total num...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20G01N33/00
CPCG01N25/20G01N33/00
Inventor 高焱夏晶晶耿纪莹殷伟姜晴周君朱胜雪丁云飞
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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