Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis
The thermal conductivity can characterize thermal behaviour of soils in different engineering studies: environmental, geothermal, geotechnical and buildings construction. However, accurately measuring and predicting this parameter poses a challenging task. Measuring this parameter can be very compl...
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| Format: | Article |
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Universidade Federal de Viçosa (UFV)
2024-09-01
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| Series: | The Journal of Engineering and Exact Sciences |
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| Online Access: | https://periodicos.ufv.br/jcec/article/view/19473 |
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| author | Abderrahim Laimech Feth-Ellah Mounir Derfouf Khalfallah Mekaideche Nabil Aboubekr |
| author_facet | Abderrahim Laimech Feth-Ellah Mounir Derfouf Khalfallah Mekaideche Nabil Aboubekr |
| author_sort | Abderrahim Laimech |
| collection | DOAJ |
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The thermal conductivity can characterize thermal behaviour of soils in different engineering studies: environmental, geothermal, geotechnical and buildings construction. However, accurately measuring and predicting this parameter poses a challenging task. Measuring this parameter can be very complex, considering several factors, such as soil heterogeneity and external climatic conditions. In addition, predictions models may not capture all the nuances of real-world soil conditions, leading to less accurate predictions of ?. The objectives of this paper encompassed two primary aspects: (i) Evaluation of laboratory tests of thermal conductivity of unsaturated soil. (ii) Assessment of five highly recommended soil thermal conductivity models to determine their validity and strengthen their trustworthiness. The studied material consisted of calcareous tufa locally available in Beni-Saf region (Algeria). The tested samples were compacted to the Standard and Modified Proctor Optimum (SPO, MPO) followed by drying periods under laboratory conditions. The thermal conductivity of samples was evaluated using transient method. The models’ predictive results of the thermal conductivity were assessed with different criteria such as Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), and Coefficient of Determination R². Furthermore, this work also attempts to deliver an in-depth discussion of the effect of degree of saturation Sr on the thermal conductivity of soils.
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| format | Article |
| id | doaj-art-6c8a88f08644436daba9574650906a96 |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-6c8a88f08644436daba9574650906a962025-02-02T19:53:25ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752024-09-0110610.18540/jcecvl10iss6pp19473Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysisAbderrahim Laimech0Feth-Ellah Mounir Derfouf1Khalfallah Mekaideche2Nabil Aboubekr3Laboratory of Water and Structure in Their Environnement – EOLE, University of Tlemcen, Tlemcen, Algeria.Laboratory of Water and Structure in Their Environnement – EOLE, University of Tlemcen, Tlemcen, Algeria. Department of Civil and Hydraulic Engineering, University of Saïda-Dr Moulay Tahar, Saïda, AlgeriaLaboratory of Water and Structure in Their Environnement – EOLE, University of Tlemcen, Tlemcen, Algeria.Laboratory of Water and Structure in Their Environnement – EOLE, University of Tlemcen, Tlemcen, Algeria. The thermal conductivity can characterize thermal behaviour of soils in different engineering studies: environmental, geothermal, geotechnical and buildings construction. However, accurately measuring and predicting this parameter poses a challenging task. Measuring this parameter can be very complex, considering several factors, such as soil heterogeneity and external climatic conditions. In addition, predictions models may not capture all the nuances of real-world soil conditions, leading to less accurate predictions of ?. The objectives of this paper encompassed two primary aspects: (i) Evaluation of laboratory tests of thermal conductivity of unsaturated soil. (ii) Assessment of five highly recommended soil thermal conductivity models to determine their validity and strengthen their trustworthiness. The studied material consisted of calcareous tufa locally available in Beni-Saf region (Algeria). The tested samples were compacted to the Standard and Modified Proctor Optimum (SPO, MPO) followed by drying periods under laboratory conditions. The thermal conductivity of samples was evaluated using transient method. The models’ predictive results of the thermal conductivity were assessed with different criteria such as Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), and Coefficient of Determination R². Furthermore, this work also attempts to deliver an in-depth discussion of the effect of degree of saturation Sr on the thermal conductivity of soils. https://periodicos.ufv.br/jcec/article/view/19473Unsaturated soilsCalcareous tufaThermal conductivityDegree of saturationModel predictions |
| spellingShingle | Abderrahim Laimech Feth-Ellah Mounir Derfouf Khalfallah Mekaideche Nabil Aboubekr Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis The Journal of Engineering and Exact Sciences Unsaturated soils Calcareous tufa Thermal conductivity Degree of saturation Model predictions |
| title | Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis |
| title_full | Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis |
| title_fullStr | Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis |
| title_full_unstemmed | Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis |
| title_short | Influence of degree of saturation on the thermal conductivity of soils: Experimental and comparative model analysis |
| title_sort | influence of degree of saturation on the thermal conductivity of soils experimental and comparative model analysis |
| topic | Unsaturated soils Calcareous tufa Thermal conductivity Degree of saturation Model predictions |
| url | https://periodicos.ufv.br/jcec/article/view/19473 |
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