Test device for monitoring evaporative heat dissipation cooling effects of large-scale embankment

Abstract

The invention discloses a test device for monitoring an evaporative heat dissipation cooling effect of a large-scale embankment. The test device comprises an outer test box, an embankment model test box, an indoor air circulation control system, an air drying control system, a sun illumination simulation control system, a moisture compensation control system and a data acquisition test system, wherein the outer test box is internally provided with an inner test box; the embankment model test box is used for filling an embankment model; the indoor air circulation control system is used for controlling the internal temperature or airflow direction of the outer test box or the inner test box; the air drying control system is used for controlling the internal humidity of the internal test box;the sun illumination simulation control system is erected above the embankment model and used for controlling the light radiation quantity; the moisture compensation control system is erected above the embankment model and used for controlling the moisture content; and the data acquisition test system is buried in the embankment model and is used for monitoring the temperature, the humidity, thewind speed and the heat flux density in the embankment model. The test device is suitable for research of a large-scale embankment evaporative heat dissipation model, is less affected by the externalenvironment, has many simulation factors, can meet the requirements of a contrast test and a single test at the same time, and is simple to operate and high in test result reliability.

Description

technical field [0001] The invention belongs to the technical field of embankment cooling tests, and in particular relates to a test device for monitoring the cooling effect of large-scale embankment evaporation and heat dissipation. Background technique [0002] With the construction and operation of Qinghai-Tibet Highway and Qinghai-Tibet Railway, which are major national projects, as well as economic development and urbanization, the climate is warming. Under the dual effects of climate and human factors, the permafrost areas The layer began to degenerate, resulting in melting and sinking of the Qinghai-Tibet Highway and Railway. Therefore, maintaining the thermal stability of permafrost is the key to ensuring the stability of permafrost regions. In view of the thermal stability requirements of high-grade highways in permafrost regions of the Qinghai-Tibet Plateau, porous asphalt or porous asphalt concrete pavement structures are proposed to improve the thermal stability...

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Problems solved by technology

[0003] The purpose of the present invention is to address the above problems, to propose a test device for monitoring the effect of evaporative heat dissipation on large-scale embankments, and to quantitatively study the mechanism of embankment evaporation heat dissipation and its influencing factors on the cooling effect of embankments and the thermal stability of embankments through indoor experiments. The mechanism of action is suitable for the research of large-scale embankment evaporative heat dissipation models. The test results are less affected by the external environment, and there are many factors affecting the embankment evaporative heat dissipation in the simulation, and can meet the needs of both comparative experiments and single experiments. The operation is simple and the test results High reliability and strong reference

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