Effects of soil anisotropy on a soil structure interaction in a heat exchanger pile |
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| Institution: | 1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China;3. China Academy of Building Research, Institute of Foundation Engineering, Beijing 100013, China |
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| Abstract: | A coupled thermal-hydro-mechanical computational modeling of actual field tests, which had been conducted on an end bearing heat exchanger pile, has been carried out. Results of a conventional triaxial test program, which was performed during the site investigation, indicated that two soil layers were anisotropic. A simplified form of a transverse isotropy was used to model the response of these layers. Additional analyses were carried out for completely isotropic soil layers. Comparisons between the measurements obtained during the field testing and predictions of the computational models showed a very good to excellent agreement. Overall the anisotropic model performed better than the isotropic model. |
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| Keywords: | Anisotropic soil End bearing pile Heat exchanger pile Soil structure interaction Thermally active geo-system Thermal-hydro-mechanical FE analysis |
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