Estimation of Temperature of the Sidewalls of a Surface-Coated Concrete Open Channel in a Cold, Snowy Region

DOI
  • NAGASHIMA Shigeo
    Civil Engineering Research Institute for Cold Region Public Works Research Institute
  • ISHIGAMI Akio
    Civil Engineering Research Institute for Cold Region Public Works Research Institute
  • OHKUBO Takashi
    Civil Engineering Research Institute for Cold Region Public Works Research Institute

Bibliographic Information

Other Title
  • 積雪寒冷地における表面被覆工法が施工されたコンクリート開水路側壁の内部温度の推定

Abstract

<p>The internal temperature of concrete open channels is an important factor involved in the occurrence of frost damage. It is therefore essential to know this factor to predict deterioration of concrete open channels in cold, snowy regions. In this study, the thermal properties of surface coating materials used to repair frost damage were determined, and the internal temperatures of the side walls of surface-coated concrete open channels in cold, snowy regions were estimated using one-dimensional unsteady heat conduction analysis. The applicability of the estimation formula was verified by comparing the results obtained with the formula and the actually measured temperatures of specimens installed in a channel in use in Hokkaido. The results of the study show that the temperature inside the side walls of the surface-coated concrete open channel during the winter season from December to March can be estimated with an estimation accuracy of approximately ±1.5°C or less by one-dimensional unsteady heat conduction analysis using the surface of the concrete open channel side wall as the heat conduction boundary at the range from the surface to a depth of 50 mm.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390014265842538624
  • DOI
    10.11408/jsidre.91.i_77
  • ISSN
    18847242
    18822789
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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