Partial Saturation in Compacted Soils Gèotechnique Symposium in Print 2011

Contents Preface iii
Keynote speeches
Compacted soil behaviour: initial state, structure
and constitutive modelling 3
E.E Alonso, N.M Pinyol and A. Gens
The assessment of old railway embankments –
time for a change? 19
A.S O’Brien
Session 1: Material Characterisation
Papers
Effects of the maximum soil aggregates size
and cyclic wetting-drying on the stiffness
of a lime-treated clayey soil 35
A.M Tang, MN Vu and Y.J Cui
Technical Note
Some aspects of the behaviour of compacted
soils along wetting paths 45
S. Taibi, J.M Fleureau, N Abou-Bekr, M.I Zerhouni
A. Benchouk, K. Lachguer and H. Souli
Session 2: Experimental Observation and Modelling
Papers
An insight into the water retention properties
of compacted clayey soils 55
E. Romero, G. Della Vecchia and C. Jommi
Hydromechanical behaviour of compacted granular
expansive mixtures: experimental and constitutive
study 71
E.E Alonso, E. Romero and C. Hoffmann
Experimental observations of the stress regime in
unsaturated compacted clay when laterally confined 87
J.L Boyd and V. Sivakumar
Session 3: Benchmarking of Techniques and Models
Papers
Benchmark of constitutive models for unsaturated soils 109
F.D’Onza. D. Gallipoli, S. Wheeler, F. Casini, J. Vaunat,
N. Khalili, L. Laloui, C. Mancuso, D. Mašin, M. Nuth, J-M Pereira and R. Vassallo
Benchmark of experimental techniques for measuring and controlling suction 129
A. Tarantino, D. Gallipoli, C.E Augarde, V. De Gennaro, R. Gomez, L. Laloui,
C. Mancuso, G. El Mountassir, J.J. Munoz, J-M Pereira, H. Peron, G. Pisoni,
E. Romero, A. Raveendiraraj, J.C Rojas, D.G Toll, S. Tombolato and S. Wheeler
Session 4: Application to Engineering Problems and Case Studies
Papers
Hydromechanical behaviour of heterogeneous compacted soil: experimental
observations and modelling 141
A. Gens, B. Vallejan, M. Sánchez, C. Imbert, M.V Villar and M. van Geet
Modelling the response of Lechago earth and rockfill dam 161
E.E Alonso, S. Olivella, A. Soriano, N.M Pinyol and F. Esteban
Physical modelling of wetting-induced collapse in embankment base 183
L. Thorel, V. Ferber, B. Caicedo and I.M Khokhar
Selected Questions and Answers 195