Browse > Article
http://dx.doi.org/10.5762/KAIS.2010.11.4.1405

Evaluation of OCR Prediction Methods utilizing PCPT Data  

Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.4, 2010 , pp. 1405-1410 More about this Journal
Abstract
The purpose of this study is to evaluate the capability of representative existing methods through which OCR of clayey soils can be predicted utilizing PCPT data. The existing methods include Schmertmann method, Chen and Mayne method using pore water pressures measured immediately behind the cone base $u_2$, Lunne et al. method, and the latest Abu-Farsakh method. The lab. and in-situ test results, conducted in Incheon port area, were used for the study. The predicted OCR values from the methods were compared with the reference values estimated from laboratory oedometer test. Lunne et al.(k=0.5) method provided relatively better result while all the prediction methods underestimated OCR.
Keywords
Piezocone; OCR; Pore Water Pressure; $u_1$; $u_2$;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 C. C. Ladd, R. Foott, K. Ishihara, F Scholsser, H. G. Poulos, "Stress-Deformation and Strength Characteristics", State-of-the-art report, Proc. of the 9th Int. Conf. on Soil Mechanics and Foundtion Engineering, Tokyo, 2, pp. 421-494, 1977.
2 D. Kim, "Interpretation of Empirical Cone Factors for Determining Undrained Strength," J. of Industry-Academy, Vol. 10, No. 11, pp.3296-3302, 2009.
3 M. T. Tumay, G. Z. Voyiadjis, P. R. Kurup, "Profiling OCR and Ko from Piezocone Penetration Tests," Proc. of CPT'95, ndustry-Academy, Linkoping, Sweden, Vol. 2, pp. 337-395, 1995.
4 E. Shin, J. Kim, H. Kim, C. Lee, "Reliability Analysis of Geotechnical Properties in Incheon Port Area," Proc. of KGS Spring Conf. 2009, pp. 952-960, 2009.
5 T. Lunne, P. K. Robertson, J. J. M. Powell, Cone Penetration Testing, Blackie Academic and Professional, 1997.
6 J. H. Schmertmann, "Measurement of in situ shear strength", Pro. the ASCE Special Conf. on In Situ Measurement of Soil Properties, Raleigh North Carolina, 2, pp. 57-138, 1975.
7 J . H. Schmertmann, Guidelines for Cone Penetration Test, Performance, and Design, US Federal Highway Administration, Washington, DC, Report, FHWATS-78-209, 145, 1978.
8 B. S. Chen, P. W. Mayne, Profiling the Overconsolidtion Ratio of Clay by Piezocone Tests, Report GIT-CEEGEO-94-1, Georgia Tech Research Corporation and Georgia Institute of Technology, School of Civil and Environmental Eng., Atranta, GA, 1994.
9 P. Samui, T. G. Sitharam, P. U. Kurup, "OCR Prediction using Support Vector Machine based on Piezocone Data", J. of Geotechnical and Geoenvironmental Eng., Vol. 134, No. 6, pp. 894-898, 2008.   DOI
10 M. Y. Abu-Farsakh, "Possible Evaluation of Overconsolidatio Ratio of Clayey Soils from Piezocone Penetration Tests", GSP 162 Problematic Soils and Rocks and In Situ Chracterization, ASCE, 2007.
11 P. W. Mayne, "In Situ Determination of Clay Stress History by Piezocone Predictive Soil Mechanics", Proc. of Wroth Memorial Symposium, Thomas Telford, London, pp. 483-495, 1993.
12 P. W. Mayne, "Determination of OCR in Clays by Piezocone Tests using Cavity Expansion and Critical State Concepts", Soils and Foundations, Vol. 31, No. 2, pp. 65-76, 1991.   DOI
13 A. Andressen, T. Berre, A. Kleven, T. Lunne, "Procedures Used to Obtain Soil Parameters for Foundation Engineering in the North Sea", Marine Geotechnology, Vol. 3, No. 3, pp. 201-66, 1979.   DOI
14 J. P. Sully, H. J. Echezuria, "In Situ Density Measurements with Nuclear Cone Penetrometer", Proc. of the Int. Symposium on Penetration Testing, ISOPT-1, Orlando, Vol. 2, Balkema Pub. Rotterdam, pp. 1001-1005, 1988.
15 J. I. Powell, R. T. Quarterman, T. Lunne, "Interpretation and Use of the Piezocone Test in UK Clays", Proc. of the ICE Geotechnology Conf. on Penetration Testing in UK, pp. 151-156, 1988.