Effect of Temperature and Radial Displacement Cycles on Soil–Concrete Interface Properties Using Modified Thermal Borehole Shear Test
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 144, Issue 7
Abstract
Thermoactive geostructures (such as energy piles) are used for heating and cooling of buildings, which generate daily temperature changes and cycles in the geostructure and surrounding soil due to the intermittent operation of ground-source heat pumps. For energy piles, daily temperature changes and cycles result in cyclic displacement (expansion and contraction) in both the axial and radial directions of the pile and alter soil properties. In this study, a fully automated modified thermal borehole shear test (modified-TBST) device was utilized to perform tests in normally consolidated clayey soil to investigate the effects of temperature cycles (TC) and radial expansion/contraction displacement cycles (RDC) on the soil-energy pile interaction. In addition to directly measuring the shear stress–vertical displacement curves (t-z curves), the soil temperature at different locations and pore pressure were monitored. The fully automated modified-TBST device uses two concrete plates to simulate the pile surface with temperature and expansion/contraction controls. The tests were conducted with temperature changes () at the soil–concrete interface of , 0, and . The radial expansion and contraction displacements () were and , respectively. Tests were conducted at different interface horizontal normal stresses and numbers of cycles. This paper focuses on summarizing the results of 16 tests: 6 conducted with temperature changes and cycles, 8 with radial displacement change and cycles only, and 4 with combined temperature and displacement cycles. When the soil–concrete interface was subjected to combined radial displacement and temperature cycles, the interface shear strength experienced significant changes. Therefore, it was concluded that the intermittent operation of heat pumps connected to energy piles installed in normally consolidated clayey soils has a significant effect on shaft resistance.
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Acknowledgments
This work was made possible by an NPRP 7-725-2-270 grant from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.
References
Abuel-Naga, H. M., D. T. Bergado, A. Bouzza, and G. V. Ramana. 2007. “Volume change behaviour of saturated clays under drained heating conditions: Experimental results and constitutive modeling.” Can. Geotech. J. 44 (8): 942–956.
Akrouch, G. A., M. Sanchez, and J. Briaud. 2014. “Thermomechanical behavior of energy piles in high plasticity clays.” Acta Geotech. 9 (3): 399–412.
Alsherif, N., and J. S. McCartney. 2016. “Yielding of silt at high temperature and suction magnitudes.” Geotech. Geol. Eng. 34 (2): 501–514.
Amatya, B. L., K. Soga, P. J. Bourne-Webb, T. Amis, and L. Laloui. 2012. “Thermo-mechanical behaviour of energy piles.” Géotechnique 62 (6): 503–519.
Amis, T. 2011. “Energy foundation in the UK.” Presentation to Swiss Federal Institute of Technology Lausanne, EPFL, Switzerland. Accessed December 15, 2016. http://www.gshp.org.uk/GroundSourceLive2011/TonyAmis_ Piles_gsl.pdf.
Bachmann, J., and R. R. van der Ploeg. 2002. “A review on recent developments in soil water retention theory: Interfacial tension and temperature effects.” J. Plant Nutr. Soil Sci. 165 (4): 468–478.
Baldi, G., T. Hueckel, and R. Pellegrini. 1988. “Thermal volume changes of mineral-water system in low porosity clay soils.” Can. Geotech. J. 25 (4): 807–825.
Batini, N., A. F. Rotta Loria, P. Conti, D. Testi, W. Grassi, and L. Laloui 2015. “Energy and geotechnical behaviour of energy piles for different design solutions.” Appl. Thermal Eng. 86: 199–213.
Bourne-Webb, P. J., B. Amatya, K. Soga, T. Amis, C. Davidson, and P. Payne. 2009. “Energy pile test at Lambeth College, London: Geotechnical and thermodynamic aspects of pile response to hat cycles.” Géotechnique 59 (3): 237–248.
Brandl, H. 2006. “Energy foundations and other geothermal ground structures.” Géotechnique 56 (2): 81–122.
Burghignoli, A., A. Desideri, and S. Miliziano. 1992. “Deformability of clays under non-isothermal conditions.” Rivista Italiana di Geotecnica 26 (4): 227–236.
Burghignoli, A., A. Desideri, and S. Miliziano. 2000. “A laboratory study on the thermomechanical behaviour of clayey soils.” Can. Geotech. J. 37 (4): 764–780.
Campanella, R. G., and J. K. Mitchell. 1968. “Influence of temperature variations on soil behavior.” J. Soil Mech. Found. Div. 94 (3): 709–734.
Cary, J. W. 1965. “Water flux in moist soil: Thermal versus suction gradients.” Soil Sci. 100 (3): 168–175.
Cary, J. W. 1966. “Soil moisture transport due to thermal gradients: Practical aspects.” Soil Sci. Soc. Am. J. 30 (4): 428–438.
Cekerevac, C., and L. Laloui. 2004. “Experimental study of thermal effects on the mechanical behaviour of a clay.” Int. J. Numer. Anal. Methods Geomech. 28 (3): 209–228.
Chen, D., and J. S. McCartney. 2017. “Parameters for load transfer analysis of energy piles in uniform nonplastic soils.” Int. J. Geomech. 17 (7): 04016159.
Demars, K. R., and R. D. Charles. 1982. “Soil volume changes induced by temperature cycling.” Can. Geotech. J. 19 (2): 188–194.
Di Donna, A., A. Ferrari, and L. Laloui. 2015. “Experimental investigations of the soil-concrete interface: Physical mechanisms, cyclic mobilization, and behaviour at different temperatures.” Can. Geotech. J. 53 (4): 659–672.
Faizal, M., and A. Bouazza. 2016. “Effect of forced thermal recharging on the thermal behavior of a field scale geothermal energy pile.” In Proc., Energy Geotechnics: 1st Int. Conf. on Energy Geotechnics (ICEGT 2016), edited by F. Wuttke, S. Bauer, and M. Sanchez, 557–568. Keil, Germany: CRC Press.
Fredlund, D. G., and J. K. M. Gan. 1995. “The collapse mechanism of a soil subjected to one-dimensional loading and wetting.” In Proc., NATO Advance Workshop on Genesis and Properties of Collapsible Soils, edited by E. Derbyshire, T. Dijkstra, and I. J. Smalley, 173–205. Loughborough, UK.
Fredlund, D. G., and A. Xing. 1994. “Equations for the soil-water characteristic curve.” Can. Geotech. J. 31 (4): 521–532.
Fuentes, R., N. Pinyol, and E. Alonso. 2016. “Effect of temperature induced excess porewater pressures on the shaft bearing capacity of geothermal piles.” Geomech. Energy Environ. 8 (Dec): 30–37.
Gao, H., and M. Shao. 2015. “Effects of temperature changes on soil hydraulic properties.” Soil Till. Res. 153 (Nov): 145–154.
Graham, J., N. Tanaka, and T. Crilly. 2001. “Modified cam-clay modeling of temperature effects in clays.” Can. Geotech. J. 38 (3): 608–621.
Gu, K., C. Tang, B. Shi, J. Hong, and F. Jin. 2014. “A study of the effect of temperature on the structural strength of a clayey soil using a micropenetrometer.” Bull. Eng. Geol. Environ. 73 (3): 747–758.
Hamada, Y., H. Saitoh, M. Nakamura, H. Kubota, and K. Ochifuji. 2007. “Field performance of an energy pile system for space heating.” Energy Build. 39 (5): 517–524.
Hossain, M. A., and J. H. Yin. 2013. “Unsaturated soil-cement interface behaviour in direct shear tests.” Aust. Geomech. J. 48 (3): 141–154.
Hueckel, T., and G. Baldi. 1990. “Thermoplasticity of saturated clays: Experimental constitutive study.” J. Geotech. Eng. 116 (12): 1778–1796.
Hueckel, T., B. François, and L. Laloui. 2009. “Explaining thermal failure in saturated clays.” Géotechnique 59 (3): 197–212.
Hueckel, T., B. François, and L. Laloui. 2011. “Temperature-dependent internal friction of clay in a cylindrical heat source problem.” Géotechnique 61 (10): 831–844.
Laloui, L., M. Nuth, and L. Vulliet. 2006. “Experimental and numerical investigations of the behavior of a heat exchanger pile.” Int. J. Numer. Anal. Methods Geomech. 30 (8): 763–781.
Liu, H., C. Wang, G. Kong, C. W. W. Ng, and P. Che. 2016. “Model tests on thermo-mechanical behavior of an improved energy pile.” Eur. J. Environ. Civ. Eng. 1–16.
Loria, A. F. R., and L. Laloui. 2016 “Analysis of thermally induced mechanical interactions in energy pile groups.” In Proc., Energy Geotechnics: 1st Int. Conf. on Energy Geotechnics (ICEGT 2016), edited by F. Wuttke, S. Bauer, and M. Sanchez, 171–178. Keil, Germany: CRC Press.
Loveridge, F. A., W. Powrie, T. Amis, M. Wischy, and J. Kiauk 2016. “Long term monitoring of CFA energy pile schemes in the UK.” In Energy Geotechnics: Proc., 1st Int. Conf. on Energy Geotechnics, 585–592. Boca Raton, FL: CRC Press.
Luo, J., J. Rohn, M. Bayer, A. Priess, L. Wilkmann, and W. Xiang. 2015. “Heating and cooling performance analysis of a ground source heat pump system in Southern Germany.” Geothermics 53 (Jan): 57–66.
McCartney, J. S., and K. D. Murphy. 2012. “Strain distributions in full-scale energy foundations.” Deep Found. Inst. J. 6 (2): 28–38.
McKinstry, H. A. 1965. “Thermal expansion of clay minerals.” Am. Mineral. 50: 212–222.
Mimouni, T., and L. Laloui. 2015. “Behaviour of a group of energy piles.” Can. Geotech. J. 52 (12): 1913–1929.
Mitchell, J. K., and K. Soga. 2005. Fundamental of soil behavior, 3rd ed. Hoboken, NJ: Wiley.
Montagud, C., J. M. Corberan, A. Montero, and J. F. Urchueguia. 2011. “Analysis of the energy performance of a ground source heat pump system after five years of operation.” Energy Build. 43 (12): 3618–3626.
Murphy, K., and J. McCartney. 2014. “Thermal borehole shear device.” Geotech. Test. J. 37 (6): 1–16.
Ng, C. W. W., Q. J. Ma, and A. Gunawan. 2016. “Horizontal stress change of energy piles subjected to thermal cycles in sand.” Comput. Geotech. 78 (Sep): 54–61.
Ng, C. W. W., and C. Zhou. 2014. “Cyclic behaviour of an unsaturated silt at various suctions and temperatures.” Géotechnique 64 (9): 709–720.
Olgun, C. G., T. Y. Ozudogru, and C. F. Arson. 2014. “Thermo-mechanical radial expansion of heat exchanger piles and possible effects on contact pressures at pile-soil interface.” Géotechnique Lett. 4 (3): 170–178.
Philip, J. R., and D. A. Vries. 1957. “Water vapour movement in porous materials under temperature gradient.” Am. Geophys. Union 38 (2): 222–231.
Plum, R. E., and M. I. Esrig. 1969. Some temperature effects on soil compressibility and pore water pressure., 231–242. Washington, DC: Highway Research Board.
Romero, E., A. Gens, and A. Lloret. 2001. “Temperature effects on the hydraulic behaviour of an unsaturated clay.” Geotech. Geol. Eng. 19 (3–4): 311–332.
Romero, E., A. Gens, and A. Lloret. 2003. “Suction effect on a compacted clay under isothermal conditions.” Géotechnique 53 (1): 65–81.
Saggu, R., and T. Chakraborty. 2015. “Cyclic thermo-mechanical analysis of energy piles in sand.” Geotech. Geol. Eng. 33 (2): 321–342.
Sakai, M., N. Toride, and J. Simunek. 2009. “Water and vapor movement with condensation and evaporation in a sandy column.” Soil Sci. Soc. Am. J. 73 (3): 707–717.
Shakir, R., and J. Zhu. 2009. “Behavior of compacted clay-concrete interface.” Front. Archit. Civ. Eng. China 3 (1): 85–92.
Shang, Y., S. Li, and H. Li. 2011. “Analysis of geo-temperature recovery under intermittent operation of ground-source heat pump.” Energy Build. 43 (4): 935–943.
Shin, H., and Y. Chung. 2011. Determination of coefficient of thermal expansion effects on Louisiana’s PCC pavement design. Baton Rouge, LA: Louisiana State Univ.
Suleiman, M. T., and S. Xiao. 2014. “Soil-pile interaction of geothermal deep foundations.” In Proc., 27th Central Pennsylvania Geotechnical Conf. Hershey, PA.
Sultan, N., P. Delage, and Y. J. Cui. 2002. “Temperature effects on the volume change behaviour of Boom clay.” Eng. Geol. 64 (2–3): 135–145.
Suryatriyastuti, M., H. Mroueh, and S. Burlon. 2012. “Understanding the temperature-induced mechanical behaviour of energy pile foundations.” Renewable Sustainable Energy Rev. 16 (5): 3344–3354.
Tang, A. M., and Y. J. Cui. 2005. “Controlling suction by the vapour equilibrium technique at different temperatures, application in determining the water retention properties of MX80 clay.” Can. Geotech. J. 42 (1): 287–296.
Tawati, A. E. 2010. “Impact of the rate of heating on the thermal consolidation of compacted silt.” M.S.thesis, Univ. of Colorado.
Uchaipichat, A., and N. Khalili. 2009. “Experimental investigation of thermo-hydro-mechanical behaviour of an unsaturated silt.” Géotechnique 59 (4): 339–353.
Vega, A., and J. S. McCartney. 2015. “Cyclic heating effects on thermal volume change of silt.” Environ. Geotech. 2 (5): 257–268.
Villar, M. V., and A. Lloret. 2004. “Influence of temperature on the hydro-mechanical behaviour of a compacted bentonite.” Appl. Clay Sci. 26 (1–4): 337–350.
Wang, B., A. Bouazza, R. Singh, C. Haberfield, D. Barry-Macaulay, and S. Baycan. 2014. “Posttemperature effects on shaft capacity of a full-scale geothermal energy pile.” J. Geotech. Geoenviron. Eng. 141 (4): 04014125.
Wood, C. J., H. Liu, and S. B. Riffat. 2009. “Use of energy piles in a residential building, and effects on ground temperature and heat pump efficiency.” Géotechnique 59 (3): 287–290.
Xiao, S., and M. T. Suleiman. 2015. “Investigation of thermo-mechanical load transfer (t-z curves) behavior of soil-energy pile interface using modified borehole shear tests.” In Proc., IFCEE 2015, 1658–1667.
Xiao, S., M. T. Suleiman, R. Elzeiny, H. Xie, and M. J. Al-Khawaja. 2017a. “Soil-concrete interface properties subjected to cyclic thermal loading using direct shear test.” In Proc., Geotechnical Frontiers 2017. Orlando, FL.
Xiao, S., M. T. Suleiman, and J. S. McCartney. 2014. “Shear behavior of silty soil and soil-structure interface under thermal loading.” In Proc., 2014 GeoCongress, Geo-Characterization and Modeling for Sustainability. Atlanta.
Xiao, S., M. T. Suleiman, C. J. Naito, and M. J. Al-Khawaja. 2017b. “Modified-thermal borehole shear test device and testing procedure to investigate the soil-structure interaction of energy piles.” Geotech. Test. J. 40 (6): 1–14.
Yavari, N., A. H. Tang, J. Pereira, and G. Hassen. 2016. “Effect of temperature on the shear strength of soils and the soil-structure interface.” Can. Geotech. J. 53 (7): 1186–1194.
Ye, W. M., M. Wan, B. Chen, Y. G. Chen, Y. J. Cui, and J. Wang. 2012. “Temperature effects on the unsaturated permeability of the densely compacted GMZ01 bentonite under confined conditions.” Eng. Geol. 126 (Feb): 1–7.
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©2018 American Society of Civil Engineers.
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Received: Apr 18, 2017
Accepted: Dec 19, 2017
Published online: Apr 20, 2018
Published in print: Jul 1, 2018
Discussion open until: Sep 20, 2018
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