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Volume 45 Issue S1
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CHE Dongze, ZENG Zhaotian, LIN Mingyu, YANG Chenglin, FU Huili. Thermal conductivity of calcareous sand and its prediction model[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S1): 71-74. DOI: 10.11779/CJGE2023S10010
Citation: CHE Dongze, ZENG Zhaotian, LIN Mingyu, YANG Chenglin, FU Huili. Thermal conductivity of calcareous sand and its prediction model[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S1): 71-74. DOI: 10.11779/CJGE2023S10010
shu

Thermal conductivity of calcareous sand and its prediction model

  • 1.

    College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004, China

  • 2.

    Guangxi Key Laboratory of Geomechanics and Engineering, Guilin University of Technology, Guilin 541004, China

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  • Received Date: July 06, 2023
  • Available Online: November 23, 2023
    Graphical Abstract
    • Abstract
  • The thermal probe method is used to determine the thermal conductivity of calcareous sands with different water contents. Then the Johansen model and Chen model are selected to predict the thermal conductivity of calcareous sands, and the model parameters are modified by combining with the experimentally measured values to find a suitable prediction model to effectively simulate the thermal conductivity of calcareous sands. The results indicate that the thermal conductivity of calcareous sands shows a linear increasing trend with the increase of water content, and the predicted results by the Johansen model and Chen model both have large deviations from the measured values. The predicted values by the improved Johansen model and Chen model both fit better with the measured values, and they can be used to predict the thermal conductivity of calcareous sands with high accuracy.
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    • References (8)
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    FU Huili, MO Hongyan, ZENG Zhaotian, et al. Experimental study on thermal conductivity of calcareous sand[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 61-64. (in Chinese) doi: 10.11779/CJGE2019S2016
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