Cold-region tunnel temperature field monitoring device and testing method thereof

Abstract

The invention discloses a cold-region tunnel temperature field monitoring device and a testing method thereof. The cold-region tunnel temperature field monitoring device comprises a model train accelerating device, an outside air temperature control device, a tunnel interior air temperature control device, a surrounding rock ground temperature control device and a temperature and air speed detecting device. The cold-region tunnel temperature field monitoring device and a testing method are used for researching the change rule of tunnel interior radial and longitudinal temperature fields underthe situations of different ambient air temperatures, tunnel interior temperatures, surrounding rock air temperatures, tunnel interior air speed magnitude, time duration, train launching speed magnitude and frequencies, and have the advantages that the applicable range is wide, the reliability degree is high, the testing precision is high, and the building cost is low; in order to further define the change rule of a cold-region tunnel interior air temperature field and surrounding rock radial and longitudinal temperature fields, the basis is provided for cold-proof and heat insulation design of a cold-region tunnel, and important theoretical significance and application value are achieved.

Description

technical field [0001] The invention relates to a temperature field monitoring device for tunnels in cold regions and a test method thereof, belonging to the field of test models. Background technique [0002] With the rise of the "Belt and Road" strategy, the number of high-speed railway tunnels in cold regions is increasing. Temperature is one of the main causes of freezing damage to tunnels in cold regions. At present, there is a lack of in-depth understanding of the law of the temperature field in tunnels in cold regions, and there is even a lack of research on the influence of high-speed train wind on freezing damage in tunnels in cold regions. The design of cold protection is mostly based on experience. Mainly, there are many tunnel frost damage problems. There are various factors that cause the temperature field of tunnels in cold regions to change. In China, the temperature field monitoring of tunnels in cold regions has not been considered under the conditions of d...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: In order to solve the problem that in the prior art, the model device related to the temperature field of the tunnel in the cold area cannot study the change law of the radial and longitudinal temperature fields in the tunnel under the condition of multiple factors, a cold area tunnel temperature field is proposed. Field monitoring device and its test method

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