Estimating p-y Curves for Clays by CPTU Method: Framework and Empirical Study
Publication: International Journal of Geomechanics
Volume 18, Issue 12
Abstract
Despite its wide use as a tool in foundation design, the piezocone penetration test (CPTU) has been rarely recommended to work for design and analysis of laterally loaded piles. Obtaining lateral response of pile foundations is a complicated engineering problem, especially in nonhomogeneous soils. This paper presents a review of the relationship between the piezocone test and the bearing response of laterally loaded piles and introduces a framework for estimating p-y curves for clays directly using CPTU parameters. To validate this method, full-scale lateral load tests of bored piles with corresponding CPTU tests in Jiangsu soil deposits were conducted and data were compared with the predicted results. In addition, case histories were further considered in detail to study the application of the proposed method for different field conditions. The results predicted by the proposed CPTU-based p-y curve agreed relatively well with the measured results. The proposed method can provide a fast and effective design tool that can be applied to clayey soils with full consideration of soil profiles along the pile-embedded depth.
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Acknowledgments
Great appreciation goes to the editorial board and the reviewers of this paper. The majority of the work presented in this paper was funded by the National Key R&D Program of China (Grant 2016YFC0800201), the National Natural Science Foundation of China (Grants 41572273, 51878157), the Construction Science and Technology Research Project of Jiangsu Province (Grant 2014ZD66), and the Graduate Student Scientific Research Innovation Program of Jiangsu Province (Grant KYLX16_0244). These financial supports are gratefully acknowledged.
References
Abu-Farsakh, M., M. Tumay, and G. Voyiadjis. 2003. “Numerical parametric study of piezocone penetration test in clays.” Int. J. Geomech. 3 (2): 170–181. https://doi.org/10.1061/(ASCE)1532-3641(2003)3:2(170).
Anderson, J. B., F. C. Townsend, and B. Grajales. 2003. “Case history evaluation of laterally loaded piles.” J. Geotech. Geoenviron. Eng. 129 (3): 187–196. https://doi.org/10.1061/(ASCE)1090-0241(2003)129:3(187).
API. 2000. Recommended practice for planning, designing and construction fixed offshore platforms: Working stress design. API 2A-WSD (RP2AWSD). 21st ed. Washington, DC: API.
Ashour, M., P. Pilling, and G. Norris. 2004. “Lateral behavior of pile groups in layered soils.” J. Geotech. Geoenviron. Eng. 130 (6): 580–592. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:6(580).
ASTM D5778. 2012. Standard test method for electronic friction cone and piezocone penetration testing of soils. West Conshohocken, PA: ASTM.
Bouafia, A. 2014. “P-Y curves from the CPT test for laterally loaded single piles in sand.” In Vol. 1 of Proc., 3rd Int. Symp. on Cone Penetration Testing (CPT’14), 881–887. Las Vegas: International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE).
Cai, G., S. Liu, and A. J. Puppala. 2012. “Reliability assessment of CPTU-based pile capacity predictions in soft clay deposits.” Eng. Geol. 141–142: 84–91. https://doi.org/10.1016/j.enggeo.2012.05.006.
Campanella, R. G., D. G. Gillespie, and P. K. Robertson. 1981. “Pore pressures during cone penetration testing.” In Proc., 2nd European Symp. on Penetration Testing (ESOPT II), edited by A. Verruijt. Rotterdam, Netherlands: Balkema.
DNV. 2004. Det norske veritas. Design of offshore wind turbine structures. Offshore Standard. Oslo, Norway: DNV.
Ebrahimian, B., A. Nazari, and A. Y. Pasha. 2015. “Evaluating ε50 for lateral load–displacement behavior of piles in clay.” Ocean Eng. 96: 149–160. https://doi.org/10.1016/j.oceaneng.2014.12.027.
Franke, K. W., and K. M. Rollins. 2013. “Simplified hybrid p-y spring model for liquefied soils.” J. Geotech. Geoenviron. Eng. 139 (4): 564–576. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000750.
ISSMFE. 1989. International reference test procedure for cone penetration test (CPT). Rep. of the ISSMFE Technical Committee on Penetration Testing of Soils, TC 16, with Reference to Test Procedures 7, 6–16. Linköping, Sweden: Swedish Geotechnical Institute.
Kim, G., D. Park, D. Kyung, and J. Lee. 2014. “CPT-based lateral displacement analysis using p-y method for offshore mono-piles in clays.” Geomech. Eng. 7 (4): 459–475. https://doi.org/10.12989/gae.2014.7.4.459.
Konrad, J. M., and M. Roy. 1987. “Bearing capacity of friction piles in marine clay.” Géotechnique 37 (2): 163–175. https://doi.org/10.1680/geot.1987.37.2.163.
Lee, J., M. Kim, and D. Kyung. 2010. “Estimation of lateral load capacity of rigid short piles in sands using CPT results.” J. Geotech. Geoenviron. Eng. 136 (1): 48–56. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000199.
Liu, S. Y., G. J. Cai, A. J. Puppala, and Q. Z. Tu. 2011. “Prediction of embankment settlements over marine clay using piezocone penetration tests.” Bull. Eng. Geol. Environ. 70 (3): 401–409. https://doi.org/10.1007/s10064-010-0329-4.
Liu, S. Y., G. J. Cai, L. Y. Tong, and G. Y. Du. 2008. “Approach on the engineering properties of Lianyungang marine clay from piezocone penetration tests.” Mar. Georesour. Geotechnol. 26 (3): 189–210. https://doi.org/10.1080/10641190802265994.
Liu, S. Y., G. J. Cai, and H. F. Zou. 2013. “Practical soil classification methods in China based on piezocone penetration tests.” Chin. J. Geotech. Eng. 35 (10): 1765–1776.
Liu, S. Y., and Y. K. Wu. 2004. “On the strategy and development of CPT in China.” Chin. J. Geotech. Eng. 26 (4): 553–556.
Lunne, T., P. K. Robertson, and J. J. M. Powell. 1997. Cone penetration testing in geotechnical practice. London: Blackie Academic and Professional.
Matlock, H. 1970. “Correlations for design of laterally loaded piles in soft clay.” In Proc., 2nd Offshore Technology Conf., 577–594. Houston: Offshore Technology Conference.
Mayne, P. W. 2007. Cone penetration testing: A synthesis of highway practice. Washington, DC: Transportation Research Board.
McVay, M., C. Hays, and M. Hoit. 1996. User’s manual for Floridapier 5.1. Gainesville, FL: University of Florida Press.
Ministry of Transport. 2012. Code for pile foundation of harbor engineering. JTS 167-4-2012. Beijing: Ministry of Transport.
Murchison, J. M., and M. W. O’Neill. 1984. “Evaluation of p-y relationships in cohesionless soils.” In Proc., Analysis and Design of Pile Foundations, ASCE Technical Council on Codes and Standards, ASCE National Convention, edited by J. Meyers, 174–191. New York: ASCE.
Oasys. 2013. Geotechnical software, ALP manual. London: Oasys.
Professional Standards Compilation Group of People’s Republic of China. 2008. Technical code for building pile foundation. JGJ 94-2008. Beijing: China Architecture and Building Press.
Puppala, A. J., Y. B. Acar, and M. T. Tumay. 1995. “Cone penetration in very weakly cemented sand.” J. Geotech. Eng. 121 (8): 589–600. https://doi.org/10.1061/(ASCE)0733-9410(1995)121:8(589).
Randolph, M., M. Cassidy, S. Gourvenec, and C. Erbrich. 2005. “Challenges of offshore geotechnical engineering.” In Vol. 16 of Proc., Int. Conf. on Soil Mechanics and Geotechnical Engineering, 124–176. Rotterdam, Netherlands: Balkema.
Reese, L. C., W. R. Cox, and F. D. Koop, 1975. “Field testing and analysis of laterally loaded piles in stiff clay.” In Vol. 2 of Proc., 7th Offshore Technology Conf., Paper No. OTC 2312, 672–690. Houston: Offshore Technology Conference.
Reese, L. C., S. T. Wang, J. A. Arrellaga, and J. Hendrix. 1997. LPILE plus 3.0 for windows. Austin, TX: Ensoft.
Robertson, P. K. 2009. “Interpretation of cone penetration tests—A unified approach.” Can. Geotech. J. 46 (11): 1337–1355. https://doi.org/10.1139/T09-065.
Roy, M., M. Tremblay, F. Tavenas, and P. L. Rochelle. 1982. “Development of pore pressures in quasi-static penetration tests in sensitive clay.” Can. Geotech. J. 19 (2): 124–138. https://doi.org/10.1139/t82-015.
Schnaid, F., and G. T. Houlsby. 1991. “Assessment of chamber size effects in the calibration of in situ tests in sand.” Géotechnique 41 (3): 437–445. https://doi.org/10.1680/geot.1991.41.3.437.
Shahin, M. A. 2014. “Load–settlement modeling of axially loaded drilled shafts using CPT-based recurrent neural networks.” Int. J. Geomech. 14 (6): 06014012. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000370.
Suryasentana, S. K., and B. M. Lehane. 2014. “Numerical derivation of CPT-based p–y curves for piles in sand.” Géotechnique 64 (3): 186–194. https://doi.org/10.1680/geot.13.P.026.
Taghavi, A., and K. K. Muraleetharan. 2017. “Analysis of laterally loaded pile groups in improved soft clay.” Int. J. Geomech. 17 (4): 04016098. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000795.
Tong, L., Q. Wang, G. Du, S. Liu, and G. Cai. 2011. “Determination of undrained shear strength using piezocone penetration test in clayey soil for bridge foundation.” J. Southeast Univ. 27 (2): 201–205.
Wang, S., and L. C. Reese. 1993. Com624P-laterally loaded pile analysis program for the microcomputer, version 2.0. US DOT Publication No. FHWA-SA-91-048. Washington, DC: US Department of Transportation.
Zhu, B., R. P. Chen, J. F. Guo, L. G. Kong, and Y. M. Chen. 2012. “Large-scale modeling and theoretical investigation of lateral collisions on elevated piles.” J. Geotech. Geoenviron. Eng. 138 (4): 461–471. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000623.
Information & Authors
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Published In
International Journal of Geomechanics
Volume 18 • Issue 12 • December 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Jul 21, 2017
Accepted: May 25, 2018
Published online: Sep 24, 2018
Published in print: Dec 1, 2018
Discussion open until: Feb 24, 2019
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