Resistance of full-flow penetrometers in rate-dependent and strain-softening clay

Geotechnique

Volumn 59, Issue 2, 2009, Pages 79-86

  Zhou, H ^a   Randolph, M F ^a  

^a UNIVERSITY OF WESTERN AUSTRALIA   (Australia)

Author keywords

Clays; In situ testing; Numerical modelling and analysis; Offshore engineering; Shear strength

Indexed keywords

APPROXIMATE EXPRESSIONS; COMBINED EFFECT; FINITE ELEMENT TECHNIQUES; GRADUAL DEGRADATION; HIGH STRAIN RATES; IN SITU TESTING; IN-SITU; INITIAL ESTIMATE; LABORATORY TEST; LARGE DEFORMATIONS; NUMERICAL MODELLING AND ANALYSIS; OFFSHORE ENGINEERING; PARAMETRIC STUDY; PARTIAL SOFTENING; PENETRATION RESISTANCES; RATE DEPENDENCY; RESISTANCE FACTORS; SIMPLE EXPRESSION; SOIL CHARACTERISTICS; SOIL SHEAR STRENGTH; STRAIN RATE DEPENDENCY; STRAIN SOFTENING; STRAIN-SOFTENING CLAYS; STRENGTH CONDITION; STRENGTH ENHANCEMENT;

CLAY MINERALS; COMPUTER SIMULATION; SHEAR STRENGTH; SOILS; THERMOELECTRICITY;

STRAIN RATE;

FINITE ELEMENT METHOD; NUMERICAL MODEL; PENETROMETER; SHEAR STRENGTH; SOFTENING; SOIL PROPERTY;

EID: 66349086036     PISSN: 00168505     EISSN: 00168505     Source Type: Journal    
DOI: 10.1680/geot.2007.00164     Document Type: Article

References (20)

1. Biscontin, G. & Pestana, J. M. (2001). Influence of peripheral velocity on vane shear strength of an artificial clay. Geotech. Test. J. 24, No. 4, 423-429.
2. Carter, J. P. & Balaam, N. P. (1995). AFENA User Manual 5·0. Geotechnical Research Centre, University of Sydney, Sydney, Australia.
3. Dayal, U. & Allen, J. H. (1975). The effect of penetration rate on the strength of remolded clay and sand samples. Can. Geotech. J. 12, No. 3, 336-348.
4. Dingle H. R. C., White D. J. & Gaudin C. (2008). Mechanisms of pipe embedment and lateral breakout on soft clay. Can. Geotech. J. 45, No. 5, 636-652.
5. Einav, I. & Randolph, M. F. (2005). Combining upper bound and strain path methods for evaluating penetration resistance. Int. J. Numer. Methods Engng 63, No. 14, 1991-2016.
6. Graham, J., Crooks, J. H. A. & Bell, A. L. (1983). Time effects on the stress-strain behaviour of natural soft clays. Géotechnique 33, No. 3, 327-340.
7. Hefer, P. A. & Neubecker, S. R. (1999). A recent development in offshore site investigation tools: the T-bar. Proceedings of the Australasian oil and gas conference, Perth.
8. Herrmann, L. R. (1978). Finite element analysis of contact problems. J. Engng Mech., ASCE 104, No. 5, 1043-1059.
9. Hu, Y. & Randolph, M. F. (1998a). A practical numerical approach for large deformation problems in soil. Int. J. Numer. Anal. Methods Geomech. 22, No. 5, 327-350.
10. Hu, Y. & Randolph, M. F. (1998b). H-adaptive FE analysis of elasto-plastic non-homogeneous soil with large deformation. Comput. Geotech. 23, No. 1-2, 61-83.
11. Lu, Q., Hu, Y. & Randolph, M. F. (2000). FE analysis for T-bar and spherical penetrometers in cohesive soil. Proc. 10th Int. Offshore and Polar Engng Conf., Seattle 2, 617-623.
12. Lu, Q., Hu, Y. & Randolph, M. F. (2001). Deep penetration in soft clay with strength increasing with depth. Proc. 11th Int. Offshore and Polar Engng Conf., Stavanger 2, 453-458.
13. Martin, C. M. & Randolph, M. F. (2006). Upper-bound analysis of lateral pile capacity in cohesive soil. Géotechnique 56, No. 2, 141-145.
14. Peuchen, J., Adrichem, J. & Hefer, P. A. (2005). Practice notes for push-in penetrometers for offshore geotechnical investigations. Proceedings of the symposium on frontiers in offshore geotechnics, ISFOG (eds S. Gourvenec and M. Cassidy), pp. 972-979. London: Taylor & Francis.
15. Randolph, M. F. (2004). Characterisation of soft sediments for offshore applications. Proc. 2nd Int. Conf. on Site Characterisation, Porto 1, 209-231.
16. Randolph, M. F., Hefer, P. A., Geise, J. M. & Watson, P. G. (1998). Improved seabed strength profiling using T-bar penetrometer. Proceedings of the international conference on offshore site investigation and foundation behaviour: 'new frontiers', pp. 221-235. London: Society for Underwater Technology.
17. Randolph, M. F. & Houlsby, G. T. (1984). The limiting pressure on a circular pile loaded laterally in cohesive soil. Géotechnique 34, No. 4, 613-623.
18. Randolph, M. F., Martin, C. M. & Hu, Y. (2000). Limiting resistance of a spherical penetrometer in cohesive material. Géotechnique 50, No. 5, 573-582.
19. Zhou, H. & Randolph, M. F. (2007). Computational techniques and shear band development for cylindrical and spherical penetrometers in strain-softening clay. Int. J. Geomech., ASCE 7, No. 4, 287-295.
20. Zhou, H., White D. J. & Randolph, M. F. (2008). Physical and numerical simulation of shallow penetration of a cylindrical object into soft clay. Proc. GeoCongress 2008: Characterization, Monitoring and Modelling of GeoSystems (ASCE GSP 179), New Orleans, 108-117.