Acta Geotechnica

, Volume 13, Issue 2, pp 493–495 | Cite as

Reply to “Discussion of “From saturated to unsaturated conditions and vice versa” by M. Lloret-Cabot et al. (DOI 10.1007/s11440-017-0577-6)” by S. Qi et al. (DOI 10.1007/s11440-017-0625-2)

  • Martí Lloret-CabotEmail author
  • Simon J. Wheeler
  • Jubert A. Pineda
  • Enrique Romero
  • Daichao Sheng

We are very happy to see that the Discussers have used the Glasgow Coupled Model (GCM) to perform successful quantitative simulations of the variations of both v and Sr during a drying test performed by Cunningham et al. [1] at zero net stress on an initially saturated sample of a reconstituted silty clay. We are also very interested to see the Discussers proposed methodology for calibrating GCM parameter values from the results of a drying test performed at zero net stress. We would, however, like to provide some comment on and response to the Discussers’ contribution.

Firstly, we would like to make a few corrections to the Discussers’ contribution.

In deriving Eq. (1), the Discussers state that this expression relates to “hydraulic yielding alone” (i.e. yielding on the DR yield surface or the WR yield surface). In fact, Eq. (1) applies whenever there is mechanical yielding (i.e. on the M yield surface), irrespective of whether this also involves simultaneous retention yielding on the...


  1. 1.
    Cunningham MR, Ridley AM, Dineen K, Burland JB (2003) The mechanical behaviour of a reconstituted unsaturated silty clay. Géotechnique 53(2):183–194CrossRefGoogle Scholar
  2. 2.
    Lloret-Cabot M, Wheeler SJ, Sanchez M (2017) A unified mechanical and retention model for saturated and unsaturated soil behaviour. Acta Geotech 12(1):1–21CrossRefGoogle Scholar
  3. 3.
    Lloret-Cabot M, Wheeler SJ, Pineda JA, Romero E, Sheng D (2017) From saturated to unsaturated conditions and vice versa. Acta Geotech. Google Scholar
  4. 4.
    Wheeler SJ, Sharma RS, Buisson MSR (2003) Coupling of hydraulic hysteresis and stress–strain behaviour in unsaturated soils. Géotechnique 53(1):41–54CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.University of GlasgowGlasgowScotland, UK
  2. 2.University of NewcastleCallaghanAustralia
  3. 3.Universitat Politècnica de CatalunyaBarcelonaSpain

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