Pore Pressure Response of Undrained Two-Way Cyclic Loading of Silt
DOI:
https://doi.org/10.11113/mjce.v11.15617Abstract
A series of stress -controlled undrained two-way cyclic loading tests were
performed on reconstituted samples of isotropically con solidated Keuper Marl silt
(LL = 36%, PI = 19%) of various stress histories and stress levels. The series
included cyclic loading with and without rest-periods, and resulted in either
failure or non-failure .of the sample during cyclic loading. Following a restperiod,
non-failure samples were subject to further cyclic loading. Studies on the
pore pressure response of normall y consolidated samples indicated that
permanent pore pres sure developed steadily with the loading period, but the rate
of development decreased as the loadin g period increased. A linear relationship
was found to exist between the normalised permanent pressure rate and time,
plotted on logarithmic scales.
References
[I] Koutsoftas, D.C., Effect of Cyclic Loads on Undrained Strength of Two
Marine Clays , ASCE Journal of Geotechnical Engineering Division, Vol
, No GT5, pp. 609 - 620, 1978. .
Brown, S.F., Andersen, K.H. and McElvaney, J. The Effect of Drainage on
Cyclic Loading of Clay, Proc. 9th Jnt.Con! on Soil Mechanics and
Foundation Engineering, Tokyo, Japan, pp. 195 - 200, 1977.
Yasuhara, K., Cyclic Strength and Deformation of Normally Consolidated
Clay, Japanese Society ofSoil Mechanics and Foundation Engineering, Vol.
, No 3, 78 - 91, 1982.
Andersen, K.H. , Brown, S.F., Foss, L, Pool, J.H. and Rosenbrand, W.P.,
Effect of Cyclic Loading on Clay Behaviour, Proc. Conf. on Design and
Construction of Offshore Structures, Institute of Civil Engineers, pp. 75 -
,1976.
Raybould, M., The Response of Silt-Clay Mixtures to Cyclic Loading , PhD.
Thesis, University of Nottingham, UK, 19.91.
ASCE The Committee on Soil Dynamics of the Geotechnical Engineering
Division, Definition of Terms Related to Liquefaction, ASCE Journal of
Geotechnical Engineering Division, Vol. 104, No GT9, pp. 1197 - 1200,
Wood, D.M., Laboratory Investigations of the Behaviour of Soils under
Cyclic Loading: A Review, Chapter 20, Soil Mechanics - Transient and
Cyclic Loads, G.N. Pande and O.c. Zienkiewicz, Eds ., John Wiley and Sons
Ltd., pp. 513 - 582, 1982.
Airey, D.W. and Fahey, M., Cyclic Response of Calcareous Soil From the
North-West Shelf of Australia, 'Geotechnique 41, No 1, pp. 101 - 121, 1982.
Sangrey, D.A (1978). Marine Geotechnology - State of the Art, Marine
Geotechnology, Vol 2,45 - 80.
Lee, K.L. and Focht, J.A, Cyclic Testing of Soil for Ocean Wave Loading
. Problems, Marine Geotechnology, Vall, No 4, pp. 305 - 325, 1976.
Wilson, N.E. and Greenwood, J.R., Pore Pressures and Strains after
Repeated Loading of Saturated Clay, Canadian Geotechnical Journal, Vol
, No 2, pp. 269 - 277, 1974.
Hyde, A.F.L. and Ward, S.J., A Pore Pressure and Stability Model for a
Silty Clay under Repeated Loading, Geotechnique 35, No 2, pp. 113 - 125,
Conn, G.M., The Two-Way Repeated Loading ofa Silty Clay, PhD. Thesis, .
Loughborough University of Technology, UK, 1988.
Hyde, AF.L., Yasuhara, K and Hirao, K, Stability Criteria for Marine Clay
under One-way Cyclic Loading, ASCE Journal of Geotechnical Engineering
Division, Vol. 119, No 11, pp. 1771 - 1789, 1993.
J Taylor, P.W. and Bacchus, D.R., Dynamic Cyclic Strain Tests on a Clay,
th European Conference on Soil Mechanics and Foundation Engineering,
Vall, pp. 401 -410, 1969.
Sangrey, D.A., Henkel, D.l. and Esrig, M.L, The Effective Stress Response
of a Saturated Clay Soil to Repeated Loading, Canadian Geotechnical
Journal, Vol. 6, pp. 421- 430, 1969.
Marta, A., .Pore Pressure Model of Undrained Two-Way Cyclic Loading of
Silt, 4th Regional Conference in Geotechnical Eng. (GEOTROPlKA '97),
Malaysia, pp. 123 - 142, 1997.
Hyde, A.F.L, Marta, A and Yasuhara, K., Volumetric Compression of
Periodically Loaded Silt, International Conference on Deformation and :
. Progressive Failure in Geomechanics, Nagoya, Japan, 1997.
Menzies, S., A Computer Controlled Hydraulic Triaxial Testing System,
Advanced Triaxial Testing ofSoil and Rock, ASTM STP 977,82 - 94,1988.
Marta, A., Volumetric Compression ofa Silt under Periodic Loading, PhD.
Thesis, University of Bradford, U.K, 1996a.
Ward, SJ., The Stability of a Silty Clay under Repeated Loading, PhD .
Thesis, Loughborough University of Technology, UK, 1983.
Marta, A., Critical State of Keuper Marl Silt, Civil Engineering Journal,
Faculty of Civil Engineering, UTM, Vol. 9 No 2, pp. 34 - 58, 1996b.
Wood, D.M., Soil Behaviour and Critical State of Soil Mechanics,
Cambridge University Press, 1990.
