Experimental Investigations of Temperature and Suction Effects on Compressibility and Pre-Consolidation Pressure of a Sandy Silt

Salager, Simon; Baudin, François; Youssoufi, Moulay Saı̈d El; Laloui, Lyesse; Saix, C.

doi:10.3208/sandf.48.453

Cited by 53 publications

(39 citation statements)

References 28 publications

(23 reference statements)

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“…The proposed expression . Combined effect of temperature and suction on the evolution of the preconsolidation pressure of a sandy silt [20]: (a) decrease with temperature and (b) increase with suction. The normalized preconsolidation pressure is the preconsolidation pressure measured at a given temperature T and suction s over the established preconsolidation pressure at ambient and saturated conditions (T 0 and s = 0).…”

Section: Thermo-hydro-mechanical Effects On the Isotropic Yield Limitmentioning

confidence: 99%

“…Salager et al [20] carried out an experimental study to assess the combined effects of suction and temperature on the preconsolidation pressure p c of a sandy silt. The results were interpreted in light of generalized effective stress.…”

Section: Thermo-hydro-mechanical Effects On the Isotropic Yield Limitmentioning

confidence: 99%

“…In parallel with the first laboratory tests dealing with unsaturated soils under non-isothermal conditions [13][14][15][16][17][18][19][20], more advanced constitutive frameworks on soil responses under non-isothermal and unsaturated conditions were being developed. Using similarities between the structures of thermo-plastic modelling by Hueckel and Borsetto [21] and the elasto-plastic model for unsaturated soils of Alonso et al [22], Gens [7] joined both approaches in a more general model involving suction and temperature effects.…”

Section: Previous Contributions To the Constitutive Modelling Under Nmentioning

confidence: 99%

See 2 more Smart Citations

ACMEG‐TS: A constitutive model for unsaturated soils under non‐isothermal conditions

Baudin

Laloui

2008

Num Anal Meth Geomechanics

114

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SUMMARYThis paper introduces an unconventional constitutive model for soils, which deals with a unified thermomechanical modelling for unsaturated soils. The relevant temperature and suction effects are studied in light of elasto-plasticity. A generalized effective stress framework is adopted, which includes a number of intrinsic thermo-hydro-mechanical connections, to represent the stress state in the soil. Two coupled constitutive aspects are used to fully describe the non-isothermal behaviour. The mechanical constitutive part is built on the concepts of bounding surface theory and multi-mechanism plasticity, whereas water retention characteristics are described using elasto-plasticity to reproduce the hysteretic response and the effect of temperature and dry density on retention properties. The theoretical formulation is supported by comparisons with experimental results on two compacted clays.

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Section: Thermo-hydro-mechanical Effects On the Isotropic Yield Limitmentioning

confidence: 99%

Section: Thermo-hydro-mechanical Effects On the Isotropic Yield Limitmentioning

confidence: 99%

Section: Previous Contributions To the Constitutive Modelling Under Nmentioning

confidence: 99%

See 1 more Smart Citation

ACMEG‐TS: A constitutive model for unsaturated soils under non‐isothermal conditions

Baudin

Laloui

2008

Num Anal Meth Geomechanics

114

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“…However, [17] reported expansion of silty clay when heated at low suction and net applied stress. Under non-isothermal path, [17] and [18] observed an increase in contraction of sandy silt and silt respectively, with increasing temperature, although [17] observed this at high initial suction and net stress. Most findings on the effect of temperature on compressibility parameters and yield pressure are unanimous for nonexpansive soils.…”

Section: Introductionmentioning

confidence: 92%

“…Most findings on the effect of temperature on compressibility parameters and yield pressure are unanimous for nonexpansive soils. The compressibility parameters were reported to be unaffected by temperature [18,17]. The yield pressure reduces with increasing temperature, thereby shrinking the yield surface; a condition known as thermal softening [17, 18, 19, 20, 21, 22, and 23].…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on volume change behaviour of statically compacted kaolin clay

2016

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Abstract. Several soils are subjected to high temperature due to the environment where they are located or activities around them. For instance, upper layer of soils in tropical regions, soils around geothermal structures, clay barriers around nuclear waste repository systems. Numerous studies have pointed out that high temperature affects the hydromechanical properties of soils. Notwithstanding already existing studies, the influence of temperature on soils is still a challenge, as most of these studies are soil specific and cannot be inferred as the behaviour of all soils. This paper presents an experimental study on the influence of temperature on the volume change behaviour of statically compacted kaolin clay. Compacted samples were tested at varying temperatures using a suction controlled oedometer cell. The influence of temperature on the magnitude of volumetric strain occurring during mechanical and thermal loading was investigated. The study showed that an increase in temperature increased the magnitude of volumetric strain of the soil on loading. Additionally, the results presented in the light of LC curve showed that an increase in temperature resulted in the contraction and a change in the position of the LC curve.

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Mechanics of Unsaturated Soils

Laloui

Nuth

Baudin

2013

Mechanics of Unsaturated Geomaterials

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Experimental Investigations of Temperature and Suction Effects on Compressibility and Pre-Consolidation Pressure of a Sandy Silt

Cited by 53 publications

References 28 publications

ACMEG‐TS: A constitutive model for unsaturated soils under non‐isothermal conditions

ACMEG‐TS: A constitutive model for unsaturated soils under non‐isothermal conditions

Effect of temperature on volume change behaviour of statically compacted kaolin clay

Mechanics of Unsaturated Soils

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