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Heat pipe body, heat pipe, heat pipe roadbed system of yin-yang slope roadbed and construction method of heat pipe roadbed system

A technology for yin and yang slope roadbed and sunny slope roadbed, which is applied in infrastructure engineering, roads, roads, etc., can solve problems such as the inability to effectively adjust the temperature difference between yin and yang slope roadbeds.

Active Publication Date: 2020-12-04
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present application provides a heat pipe body, heat pipe, heat pipe subgrade system of yin and yang slope subgrade and its construction method, so as to improve the problem that the existing heat pipe cannot effectively adjust the ground temperature difference of yin and yang slope subgrade

Method used

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  • Heat pipe body, heat pipe, heat pipe roadbed system of yin-yang slope roadbed and construction method of heat pipe roadbed system

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Embodiment

[0043]Permafrost is a special rock and soil with a temperature at or below 0°C and containing ice. It is very sensitive to temperature changes. Climate warming and engineering construction will cause temperature rise and degradation of permafrost, which will affect the stability of the upper road. The difference in the absorption of solar radiation by the slopes on both sides of the subgrade (also known as yin and yang slopes) will further aggravate the disease of the frozen soil subgrade, induce uneven deformation of the subgrade, longitudinal cracking, etc., and directly affect the service function of the road. The heat pipe 1000 is the active cooling technology with the most obvious cooling effect in permafrost subgrades, and has been widely used in the stability maintenance of permafrost subgrades in some major projects. However, the inventors found that the heat pipe 1000 in the frozen soil roadbed is mainly installed vertically or obliquely on both sides of the roadbed. ...

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Abstract

The invention provides a heat pipe body, a heat pipe, a heat pipe roadbed system of a yin-yang slope roadbed and a construction method of the heat pipe roadbed system, and relates to the technical field of road construction. The heat pipe body comprises a pipe body and a first switch device. The pipe body is used for containing a condensation medium and comprises a first condensation section and an evaporation section which are arranged in an axial direction. The first switch device is arranged on the pipe body and used for connecting or disconnecting the evaporation section and the first condensation section. An effective working length and the effective working time of the heat pipe with the heat pipe body can be controlled through the first switch device, and the working efficiency of the heat pipe is enhanced.

Description

technical field [0001] The present application relates to the technical field of road construction, in particular to a heat pipe body, a heat pipe, a heat pipe embankment system of a shady and sunny slope embankment, and a construction method thereof. Background technique [0002] At present, heat pipes are the best technology for active cooling of subgrades in permafrost. However, due to the limitation of the structure of heat pipes, heat pipes mainly work in cold seasons, and cannot effectively adjust the ground temperature difference of subgrades under shady and sunny slopes in warm seasons. Limited by the cooling range of the heat pipe, excessive cooling around the pipe tends to aggravate the uneven distribution of the lateral temperature of the subgrade. At the same time, limited by the heat pipe layout and installation technology, there are often cavities in the pipe wall and the surrounding soil, which not only weakens the heat transfer between the heat pipe and the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06E02D3/11F24T10/40F28D15/02F28D15/06
CPCE01C3/06E02D3/11F28D15/02F28D15/06F24T10/40Y02E10/10Y02A30/60
Inventor 裴万胜张明义晏忠瑞赖远明张建明
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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