Tunnel temperature field simulation method
A simulation method, tunnel temperature technology, applied in the testing of machines/structural components, instruments, measuring devices, etc., can solve the problems of lack of radial and longitudinal temperature field changes, and temperature field distribution laws in a single hole
Inactive Publication Date: 2019-02-15
HUAIYIN INSTITUTE OF TECHNOLOGY
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Problems solved by technology
[0004] At present, the model tests related to the temperature field of tunnels in cold regions can obtain the distribution law of the temperature field in the tunnel in a single factor and in a local area, but there is a lack of test devices and test methods for the variation law of the radial and longitudinal temperature fields in the tunnel under the influence of multiple factors
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[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0027] Such as figure 1 as shown,
[0028] An air curtain simulation experiment device for a high-speed railway tunnel in a cold region, including a frame body, a surrounding rock ground temperature control device 3, an air flow manufacturing mechanism, a temperature test group, and a wind speed test group. The shape of the surrounding rock is stacked into a tunnel model, and the surrounding rock The ground temperature control device 3 is installed on the periphery of the surrounding rock 7, and the wind flow manufacturing mechanism is fixedly arranged at one end of the surrounding rock 7, and several temperature test groups and several wind speed test groups are installed in the surrounding ro...
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The invention discloses a tunnel temperature field simulation method, comprising the following steps of: piling up the surrounding rocks to build a tunnel model, and simulating the ambient temperatureby the cooling chamber; keeping one or two among the ambient temperature, the temperature inside the tunnel model, and the ground temperature of the tunnel model unchanged, regularly adjusting the other two variables, measuring, and recording the data in real time; and fitting and analyzing the experimental data to obtain the law of change of the temperature inside the tunnel model, the ground temperature of the tunnel model, and the wind speed inside the tunnel model. The tunnel temperature field simulation method is used for studying the law of change of the radial and longitudinal temperature fields inside tunnels under different temperatures, different surrounding rocks temperatures, different wind speeds, and durations of time, to provide a basis for the design of cold insulation ofthe tunnels in cold regions, which has important theoretical significance and application value, and further clarifies the law of change of the temperature field, and the radial and longitudinal temperature fields of the surrounding rocks inside the tunnels in cold regions.
Description
technical field [0001] The invention relates to a tunnel temperature field simulation method and belongs to the technical field of operation methods of tunnel temperature field simulation devices. 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 the statistics of frost damage in Japan, Norway and China, there are 3819 railway tunnels in Japan (1999), and 2135 tunnels suffered from frost damage, accounting for 56% of the total number of tunnels. There are many incidents that endanger driving safety due to frost damage in winter. In Norway (1990), almost all the railway tunnels in Norway had different degrees of freezing damage such as lining cracking, hanging ice and icing; 2,937 tunnels, accounting for 26% of the total number of tunnels. [0003] The construction and operation of a large num...
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IPC IPC(8): G01M99/00
CPCG01M99/002
Inventor 丁云飞高焱耿纪莹夏晶晶周君葛倩倩罗维锐李峥嵘程淇超安少珂戴耿荣蓉
Owner HUAIYIN INSTITUTE OF TECHNOLOGY