Advertisement

KSCE Journal of Civil Engineering

, Volume 23, Issue 9, pp 3864–3874 | Cite as

An Improved CPTu-based Method to Estimate Jacked Pile Bearing Capacity and Its Reliability Assessment

  • Yong-hong Miao
  • Ping-ping Zuo
  • Jie YinEmail author
  • Shoaib Ahmed
  • Guo-long Bai
  • Jian-fei Lu
Geotechnical Engineering
  • 16 Downloads

Abstract

This paper presents an improved method for predicting the bearing capacity of single jacked pile based on piezocone penetration test (CPTu) data which contain tip resistance (qt), side friction (fs) and excess dynamic pore water pressure (u2). Firstly, the average value of qt was determined to calculate the pile unit base resistance according to the influence zone of the logarithmic spiral concerning the effect of soil types. Secondly, fs and u2 were used to calculate the pile unit shaft resistance considering the effect of friction fatigue. The pile jacking force was obtained in terms of unit base resistance and unit shaft resistance. The ultimate bearing capacity was finally determined using pile jacking force multiplied by a force ratio denoted as Rf. The ultimate bearing capacities calculated for two case projects show a good agreement with the measured results, which indicates that the proposed method is feasible and effective. Reliability assessment was carried out on the proposed method and other five estimation methods with respect to the reliability index obtained by advanced first-order second-moment (AFOSM) method. Comparison result showed that the method proposed in this study has a higher reliability index over other five existing methods. Therefore, the proposed method can be used as a reliable alternative to predict the bearing capacity in the engineering practice of jacked pile foundation.

Keywords

piezocone penetration test influence zone friction fatigue reduction factor bearing capacity reliability 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Notes

Acknowledgements

The authors gratefully appreciate the financial support from the National Natural Science Foundation of China (No. 51508236, Grant No. 41402251), Jiangsu Province Science Foundation for Youths (No. BK20150519) and the Six Talent Peaks Project Foundation of Jiangsu Province (Grant No. 2014JZ011). The corresponding author is also grateful to the financial support from China Scholarship Council (No. 201908320213) to visit the University of Wisconsin-Madison as a Visiting Scholar.

References

  1. Alkroosh, I. S., Bahadori, M., Nikraz, H., and Bahadori, A. (2015). “Regressive approach for predicting bearing capacity of bored piles from cone penetration test data.” Journal of Rock Mechanics and Geotechnical Engineering, Vol. 7, No. 5, pp. 584–592, DOI:  https://doi.org/10.1016/j.jrmge.2015.06.011.CrossRefGoogle Scholar
  2. Almeida, M. S., Danziger, F. A., and Lunne, T. (1996). “Use of piezocone test to predict the axial capacity of driven and jacked pile in clays.” Canadian Geotechnical Journal, Vol. 42, pp. 977–993, DOI:  https://doi.org/10.1139/t96-022.Google Scholar
  3. Askarifateh, A., Eslami, A., and Fahimifar, A. (2017). “Direct CPT and CPTu methods for determining bearing capacity of helical piles.” Marine Georesources & Geotechnology, Vol. 35, No. 2, pp. 193–207, DOI:  https://doi.org/10.1080/1064119X.2015.1133741.CrossRefGoogle Scholar
  4. Baziar, M. H., Kashkooli, A., and Saeedi-Azizkandi, A. (2012). “Prediction of pile shaft resistance using cone penetration tests (CPTs).” Computers and Geotechnics, Vol. 45, pp. 74–82, DOI:  https://doi.org/10.1016/j.compgeo.2012.04.005.CrossRefGoogle Scholar
  5. Bustamante, M. and Gianeselli, L. (1982). “Pile bearing capacity prediction by means of static penetrometer CPT.” Proc. The 2-nd European Symposium on Penetration Testing, Balkema, Netherlands, pp. 493–500.Google Scholar
  6. Cai, G. J., Liu, S. Y., and Puppala, A. J. (2012). “Reliability assessment of CPTu-based pile capacity predictions in soft clay deposits.” Engineering Geology, Vol. 141–142, No. 1, pp. 84–91, DOI:  https://doi.org/10.1016/j.enggeo.2012.05.006.CrossRefGoogle Scholar
  7. Cai, G. J., Liu, S. Y., Tong, L. Y., and Du, G. Y. (2009). “Assessment of direct CPT and CPTu methods for predicting the ultimate bearing capacity of single piles.” Engineering Geology, Vol. 104, Nos. 3–4, pp. 211–222, DOI:  https://doi.org/10.1016/j.enggeo.2008.10.010.CrossRefGoogle Scholar
  8. Cao, Q., Shi, J. Y., Lei, G. H., and Ai, Y. B. (2012). “Calculation of ultimate bearing capacity of jacked-in piles in soft soil based on seismic piezocone penetration tests.” Chinese Journal of Geotechnical Engineering, Vol. 34, No. 1, pp. 51–57 (in Chinese).Google Scholar
  9. Chang, S. and Zhang, S. (2007). Geological engineering handbook, China Building Industry Press, Beijing, China, pp. 132–169. (in Chinese)Google Scholar
  10. Chow, C. and Tan, Y. (2009). Jack-In pile design — Malaysian experience and design approach to EC7, EUROCODE 7-Geotechnical Design, European Committee for Standardization, Brussel, Belgium, pp. 1–33.Google Scholar
  11. Clisby, M. B., Scholtes, R. M., and Corey, M. W. (1978). An evaluation of pile bearing capacities, Volume I, Final Report, Mississippi State Highway Department, MS, USA.Google Scholar
  12. Cudmani, R. and Osinov, V. A. (2001). “The cavity expansion problem for the interpretation of cone penetration and pressuremeter tests.” Canadian Geotechnical Journal, Vol. 38, No. 3, pp. 622–638, DOI:  https://doi.org/10.1139/cgj-38-3-622.CrossRefGoogle Scholar
  13. Dejong, J. T. and Frost, J. D. (2002). “A multi-friction sleeve attachment for the cone penetrometer.” ASTM Geotech Test, Vol. 25, No. 2, pp. 111–127, DOI:  https://doi.org/10.1520/GTJ11355J.CrossRefGoogle Scholar
  14. De Kuiter, J. and Beringen, F. L. (1979). “Pile foundations for large North Sea structures.” Marine Geotechnique, Vol. 3, No. 3, pp. 267–314, DOI:  https://doi.org/10.1080/10641197909379805.CrossRefGoogle Scholar
  15. Eslami, A. and Fellenius, B. H. (1997). “Pile capacity by direct cpt and cptu methods applied to 102 case histo case histories.” Canadian Geotechnical Journal, Vol. 34, No. 6, pp. 886–904, DOI:  https://doi.org/10.1139/cgj-34-6-886.CrossRefGoogle Scholar
  16. GB50009-2012 (2012). Load code for the design of building structures, GB50009–2012, China Architecture & Building Press, Beijing, China (in Chinese).Google Scholar
  17. Heerema, E. P. (1980). “Predicting pile drivability: Heather as an illustration of the friction fatigue theory.” Ground Engineering, Vol. 13, No. 3, pp. 15–37.Google Scholar
  18. Jardine, R. J., Choe, F. C., and Over, Y. R. (2005). ICP design methods for driven piles in sand and clays, Thomas Telford, London, UK.CrossRefGoogle Scholar
  19. Kolk, H. J., Baaijens A. E., and Senders, M. (2005). “Design criteria for pipe piles in silica sands.” Proc. International Symposium on Frontiers in Offshore Geomechanics., ISFOG, Taylor and Francis Group, London, UK, pp. 711–716.Google Scholar
  20. Lehane, B. M., Li, Y., and Williams, R. (2012). “Shaft capacity of displacement piles in clay using the cone penetration test.” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 139, No. 2, pp. 253–266, DOI:  https://doi.org/10.3328/IJGE.2012.06.02.157-161.CrossRefGoogle Scholar
  21. Liu, J., Jin, F., and Tong, L. Y. (2007). “The calculation of ultimate bearing of pile based on CPTU.” Mineral Exploration, Vol. 10, No. 6, pp. 65–68 (in Chinese).Google Scholar
  22. Meyerhof, G. G. (1983). “Scale effects of ultimate pile capacity.” Journal of Geotechnical Engineering, Vol. 109, No. 6, pp. 797–806, DOI:  https://doi.org/10.1061/(ASCE)0733-9410(1983)109:6(797).CrossRefGoogle Scholar
  23. Miao, Y. H., Cai, G. J., and Liu, S.Y. (2011). “The capacity prediction and load response analysis of the rigid pile based on seismic piezocone penetration test (SCPTU).” Journal of China Coal Society, Vol. 36, No. 5, pp. 784–789 (in Chinese).Google Scholar
  24. Miao, Y. H. and Yin, J. (2014). “Reliability assessment on prediction of pile bearing capacity.” Proc. The Institution of Civil Engineers-Urban Design and Planning, Westminster, London, UK, Vol. 167, No. 6, pp. 272–279, DOI:  https://doi.org/10.1680/udap.14.00010.CrossRefGoogle Scholar
  25. Momeni, E., Nazir, R., Armaghani, D. J., and Maizir, H. (2014). “Prediction of pile bearing capacity using a hybrid genetic algorithm-based ann.” Measurement, Vol. 57, No. 11, pp. 122–131, DOI:  https://doi.org/10.1016/j.measurement.2014.08.007.CrossRefGoogle Scholar
  26. Motaghedi, H. and Armaghani, D. J. (2016). “New method for estimation of soil shear strength parameters using results of piezocone.” Measurement, Vol. 77, pp. 132–142, DOI:  https://doi.org/10.1016/j.measurement.2015.09.001.CrossRefGoogle Scholar
  27. Nejad, F. P., Jaksa, M. B., Kakhi, M., and Mccabe, B. A. (2009). “Prediction of pile settlement using artificial neural networks based on standard penetration test data.” Computers & Geotechnics, Vol. 36, No. 7, pp. 1125–1133, DOI:  https://doi.org/10.1016/j.compgeo.2009.04.003.CrossRefGoogle Scholar
  28. Niazi, F. S. and Mayne, P. W. (2016). “CPTu-based enhanced UniCone method for pile capacity.” Engineering Geology, Vol. 212, pp. 21–34, DOI:  https://doi.org/10.1016/j.enggeo.2016.07.010.CrossRefGoogle Scholar
  29. Powell, J. M., Lunne, T., and Frank, R. (2001). Semi-empirical design procedures for axial pile capacity in clays. Proc. XV ICSMGE, Istanbul, Turkey.Google Scholar
  30. Randolph, M. F. (2003). “Science and empiricism in pile foundation design.” Geotechnique, Vol. 53, No. 10, pp. 847–875, DOI:  https://doi.org/10.1680/geot.53.10.847.37518.CrossRefGoogle Scholar
  31. Randolph, M. F., Leong, E. C., and Houlsby, G. T. (1991). “One-dimensional analysis of soil plugs in pipe piles.” Geotechnique, Vol. 41, No. 4, pp. 587–598, DOI:  https://doi.org/10.1680/geot.1991.41.4.587.CrossRefGoogle Scholar
  32. Sato, H., Kanuka, K., Miyazaki, S., Osakabe, T., and Wada, S. (2016). “Laboratory experiment for end bearing capacity of pile with fragile root solidifying part.” The 26th International Ocean and Polar Engineering Conference, International Society of Offshore and Polar Engineers, Rhodes, Greece.Google Scholar
  33. Schmertmann, J. H. (1978). Guidelines for cone penetration test, performance and design. FHWATS-78-209, US Dept. of Transportation, Federal Highway Administration, Washington, D.C., USA.Google Scholar
  34. Shi, P. D. (1999). Practical handbook of pile engineering. China Construction Industry Press, Beijing, China (in Chinese).Google Scholar
  35. Suits, L. D., Sheahan, T. C., Dejong, J. T., and Frost, J. D. (2002). “A multisleeve friction attachment for the cone penetrometer.” Geotechnical Testing Journal, Vol. 25, No. 2, pp. 111–127, DOI:  https://doi.org/10.1520/GTJ11355J.CrossRefGoogle Scholar
  36. Takesue, K., Sasao, H., and Matsumoto, T. (1998). “Correlation between ultimate pile skin friction and CPT data.” Geotechnical Site Characterization, Vol. 2, pp. 1177–1182.Google Scholar
  37. Titi, H. H. and Abu-Farsakh, M. Y. (1999). Evaluation of bearing capacity of piles from cone penetration test data, LTRC Project No. 98-3GT, State Project No. 736-99-0533, Louisiana Department of Transportation and Development, Baton Roüge, LA, USA.Google Scholar
  38. Tumay, M. T. and Fakhroo, M. (1982). Friction pile capacity prediction in cohesive soils using electric quasi-static penetration tests, Interim Research Rep 1, Louisiana Department of Transportation and Development, Research and Development Section, Baton Rouge, LA, USA.Google Scholar
  39. Zhang, Z. M., Liu, J. W., Yu, F., Zhang, Q. Q., and Zhang, M. Y. (2010). “Relationship between terminative jacking force and ultimate bearing capacity of jacked pipe piles.” Chinese Journal of Geotechnical Engineering, Vol. 32, No. 8, pp. 1207–1213 (in Chinese).Google Scholar

Copyright information

© Korean Society of Civil Engineers 2019

Authors and Affiliations

  1. 1.Faculty of Civil Engineering and MechanicsJiangsu UniversityZhenjiangChina

Personalised recommendations