Experimental Evaluation of Shear Strength of Kaolin Clay under Cyclic and Noncyclic Thermal Loading
The soil response to daily temperature variation imposed by an energy pile is critical for estimating the energy pile's capacity and serviceability. It is, therefore, necessary to determine the temperature-induced effects on mechanical properties of soils. This article presents the results of an experimental study on the effects of thermal loading on shear strength of reconstituted kaolin clay. The study was performed using a triaxial testing apparatus capable of applying thermal loading. Different cyclic and noncyclic thermal loadings, with temperatures ranging between 24 ⁰C and 34 ⁰C, were applied. In addition, two theoretical mechanisms defining force distribution at the interparticle level were used to analyze the shearing behavior of clay under thermal loading. Both experimental and theoretical results indicate that the influence of temperature variation on the shear strength of clay is primarily controlled by stress state and stress history.
S. Yazdani et al., "Experimental Evaluation of Shear Strength of Kaolin Clay under Cyclic and Noncyclic Thermal Loading," Geotechnical Testing Journal, vol. 42, no. 6, ASTM International, Nov 2019.
The definitive version is available at https://doi.org/10.1520/GTJ20180020
Civil, Architectural and Environmental Engineering
Keywords and Phrases
energy pile; Kaolin; Shear strength; Temperature variations; Triaxial test
International Standard Serial Number (ISSN)
Article - Journal
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01 Nov 2019