TY - GEN
T1 - Hydro-Thermal Properties of the Unsaturated Soil
AU - Tang, Fujiao
AU - Nowamooz, Hossein
N1 - Publisher Copyright:
© 2019, Springer International Publishing AG, part of Springer Nature.
PY - 2019
Y1 - 2019
N2 - In this paper, 10 approaches were initially used to predict the thermal conductivity (k) of different soils. The comparison showed that three principal parameters indicating sand content (xs), dry density (ρdry), and degree of saturation (Sr) influenced highly the soil thermal conductivity. Moreover, 3 approaches for the volumetric heat capacity (Cv) of soil were used to predict the experimental data from the literature. The result showed that the classical approaches can induce the errors because of the non-consideration of the mineral and water content. This insufficiency was solved by proposing a new model. Finally, the most compatible approaches for the thermal properties were implemented into a 2D subsurface model using finite element method (FEM). The variation of suction (s), thermal conductivity (k) and temperature (T) with time and space was then investigated in the numerical simulation model under the influence of seasonal suction and temperature on the top boundary.
AB - In this paper, 10 approaches were initially used to predict the thermal conductivity (k) of different soils. The comparison showed that three principal parameters indicating sand content (xs), dry density (ρdry), and degree of saturation (Sr) influenced highly the soil thermal conductivity. Moreover, 3 approaches for the volumetric heat capacity (Cv) of soil were used to predict the experimental data from the literature. The result showed that the classical approaches can induce the errors because of the non-consideration of the mineral and water content. This insufficiency was solved by proposing a new model. Finally, the most compatible approaches for the thermal properties were implemented into a 2D subsurface model using finite element method (FEM). The variation of suction (s), thermal conductivity (k) and temperature (T) with time and space was then investigated in the numerical simulation model under the influence of seasonal suction and temperature on the top boundary.
KW - Hydrothermal Transfer
KW - Residual Volumetric Water Content
KW - Sand Content
KW - Soil Volumetric Heat Capacity
KW - Thermal Response Test (TRT)
UR - https://www.scopus.com/pages/publications/85067025647
U2 - 10.1007/978-3-319-95744-9_2
DO - 10.1007/978-3-319-95744-9_2
M3 - 会议稿件
AN - SCOPUS:85067025647
SN - 9783319957432
T3 - Sustainable Civil Infrastructures
SP - 18
EP - 26
BT - New Solutions for Challenges in Applications of New Materials and Geotechnical Issues - Proceedings of the 5th GeoChina International Conference 2018 – Civil Infrastructures Confronting Severe Weathers and Climate Changes
A2 - Wang, Shuying
A2 - Xinbao, Yu
A2 - Tefe, Moses
PB - Springer Science and Business Media B.V.
T2 - 5th GeoChina International Conference on Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, 2018
Y2 - 23 July 2018 through 25 July 2018
ER -