Generalized model for predicting the thermal conductivity of fine-grained soils

Geothermics, Год журнала: 2023, Номер 113, С. 102752 - 102752

Опубликована: Май 29, 2023

Язык: Английский

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Experimental study and three-dimensional visualization model on the thermal conductivity of unsaturated frozen soil based on nuclear magnetic resonance

Acta Geotechnica, Год журнала: 2023, Номер 19(6), С. 3925 - 3938

Опубликована: Окт. 26, 2023

Язык: Английский

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Experimental Study and Simulation of Thermal Conductivity of Saturated Frozen Soil

Journal of Thermal Science and Engineering Applications, Год журнала: 2023, Номер 15(11)

Опубликована: Июль 18, 2023

Abstract The aim of this study was to enhance the accuracy predicting temperature field frozen soil and reduce workload thermal parameter testing. To achieve this, we employed a three-phase model comprising soil, water, ice. unfrozen water content in at varying temperatures determined using nuclear magnetic resonance spectroscopy (NMR), while conductivity measured by characteristic analyzer. A matlab software-based random then established imported into COMSOL simulation software. repeatability reproducibility were verified proportions pore ice determine degree accuracy.The results demonstrated that maintained dynamic equilibrium relationship with temperature, which influenced soil. consistent those obtained from instrument measurements trends respect temperature. average PBIAS value between calculated values 0.0139, indicating theoretical feasibility. Comparison experimental data confirmed effectiveness our approach, providing novel concept simple method for engineering areas experience seasonal freezing.

Язык: Английский

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Assessment of thermal conductivity prediction models for compacted bentonite-based backfill material

International Journal of Environmental Science and Technology, Год журнала: 2024, Номер 22(6), С. 4571 - 4582

Опубликована: Авг. 22, 2024

Язык: Английский

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Effects of free iron oxide on thermal properties of undisturbed lateritic clay subjected to drying and wetting

Acta Geotechnica, Год журнала: 2022, Номер 17(10), С. 4473 - 4483

Опубликована: Март 26, 2022

Язык: Английский

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