Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
13448644 | Measurement | 2020 | 61 Pages |
Abstract
This study revealed that heat flow and current through geomaterials had many similarities with respect to transfer theory and calculation model. Most of the influence factors were intertwined in a complex correlation with thermal/electrical resistivity. Solid particles and the contacted paths among them were the main conduction channels of heat/current as geomaterials in a dry state. Salt content of pore fluid had a great influence on electrical conduction of geomaterials, whilst this influence was absent in the issue of thermal conduction. Degree of saturation was a combined factor, and its correlation with thermal/electrical resistivity could be depicted by using power function. The calculation model of thermal/electrical resistivity was finally developed and verified. The accuracy of predicted results of silty sand was acceptable and its RMSE value was 11.31Â KÂ cm/W. The proposed model had an underestimation in thermal resistivity of clay, which was probably due to the complexity of mineral components.
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Authors
Yu-Ling Yang, Tao Zhang, Song-Yu Liu,