Compression behaviour of reconstituted soils at high initial water contents

Zhang, Hong; Yin, Jie; Cui, Yu‐Jun

doi:10.1680/geot.09.p.059

Cited by 219 publications

(150 citation statements)

References 30 publications

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“…It is clear from this figure that all compression curves are an inverse Sshape and slightly concave upwards, similar to those of natural clays. The same shape of ICL was reported by other researchers with different degrees of plasticity for reconstituted clays as well [3], [5]. Moreover, Fig.…”

Section: Inherent Compressibility and Remoulded Yield Stresssupporting

confidence: 87%

“…Reconstituted samples were prepared according to the sample preparation proposed originally by Burland, 1990 [2] and followed by Hong et al, 2010 [3]. First, samples obtained from the site were ovendried at 105-110°C.…”

Section: Fig 1 Plasticity Chartmentioning

confidence: 99%

“…However, it has been understood lately that the compressibility behaviour of a reconstituted clay is also affected by other factors, such as the initial state. Intrinsic parameters and ICL were firstly introduced in the 1990s, yet they are still being used by several researchers around the world as a basic concept for presenting the results and characterising the compression behaviour of various types of clays such as sedimentary clays, remoulded clays, dredged slurries, and marine clays (for example, [3]- [5]). …”

Section: Introductionmentioning

confidence: 99%

“…Burland, 1990 [2] stated ICL is a unique line for a wide range of liquid limits. Nonetheless, recent research suggests that the contrary is true especially at high initial water content [3]. Burland, 1990 [2] also presented a polynomial relationship for calculating the ICL for a broad range of liquid limits, varying from 25% to 128%:…”

Section: Introductionmentioning

confidence: 99%

“…Hong et al, 2010 [3] conducted a comprehensive consolidation program on three different clays from China. They used a wider range of initial water content, varying from 0.7 to 2.0 times liquid limits.…”

Section: Introductionmentioning

confidence: 99%

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Intrinsic Compression Characteristics of an Expansive Clay From Western Australia

Habibbeygi¹

2017

geomate

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Intrinsic compression behaviour of an expansive clay from Western Australia is investigated using the intrinsic framework in this study. Oedometer results conform with the intrinsic concept at post-yield phase. However, there is a great impact of initial water content on the compression curves at pre-yield stage. It specifies that there is an initial structure similar to a natural clay structure which resists applied forces at this phase and it is related to the amount of initial water content at the preparation stage. Nonetheless, this interparticle bonding is demolished when vertical stress becomes greater than remoulded yield stress. The findings also show that the remoulded yield stress of a reconstituted clay decreases non-linearly with the increase of initial water content, and is remarkably affected by its clay mineralogy. The remoulded yield stress of a soil with the predominant clay of smectite is far greater than those of other clay minerals despite having the same normalised initial void ratio value ( 0 ⁄ ). Moreover, remoulded yield stress of an expansive soil with main clay mineral of smectite decreases more abruptly than for other clay minerals reported in the literature. Reconstituted compression indexes ( * , 100 * ) for clays with a considerable amount of smectite are also greater than respective values for other clay minerals.

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Section: Inherent Compressibility and Remoulded Yield Stresssupporting

confidence: 87%

Section: Fig 1 Plasticity Chartmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Intrinsic Compression Characteristics of an Expansive Clay From Western Australia

Habibbeygi¹

2017

geomate

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Analysis of the compression behavior of artificial lumpy composite materials

Shi

2016

Int. J. Numer. Anal. Meth. Geomech.

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Summary The landfills are dumped without any compaction and have a relatively open structure, which is similar to that of the granular materials. However, the original dumped material might be gradually transformed into a lumpy composite structure because of the influence of the climate. As a result, the lumps are randomly distributed in the reconstituted soil. In the presented study, the compression behavior of the lumpy composite soils was analyzed within the homogenization framework. Firstly, the volume of the composite soil was divided into four individual components. The inter‐lump porosity was introduced to account for the evolution of the volume fractions of the constituents, and it was formulated as a function of the overall porosity and those of its constituents. A homogenization law was then proposed based on the analysis of the lumpy structure together with a numerical method, which gives a relationship for tangent stiffnesses of the lumpy soil and its constituents. Finally, a simple compression model was proposed for the composite lumpy material, which incorporates both the influence of the soil structure and the volume fraction change of the reconstituted soil. The predictions of the model were validated against the test results, and the stress distribution within the lumpy composite was assessed. Copyright © 2016 John Wiley & Sons, Ltd.

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SCS: A one‐dimensional piecewise‐linear large strain consolidation model for structured soils

Shi

Ling

Niu

2021

Num Anal Meth Geomechanics

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Soil structure is an important mechanics property which has drawn much attention from researchers. A piecewise-linear numerical model, called SCS, is developed to investigate the large strain consolidation of structured soils. SCS accommodates large strain, soil self-weight, vertical flows, time-dependent loading, unloading/reloading, seepage force, soil heterogeneity, and soil structure. A three-stage formulation is proposed to specify the compressibility behaviors of structured soils in SCS. The accuracy of SCS in the cases of small strain and large strain is checked comparing with analytical solutions and numerical solutions respectively. The effect of the main factors impacting soil structure on the consolidation processes of structured soils is investigated using several SCS simulations. Finally, a few SCS simulations with multiple structured soil layers are conducted.

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Compression behaviour of reconstituted soils at high initial water contents

Cited by 219 publications

References 30 publications

Intrinsic Compression Characteristics of an Expansive Clay From Western Australia

Intrinsic Compression Characteristics of an Expansive Clay From Western Australia

Analysis of the compression behavior of artificial lumpy composite materials

SCS: A one‐dimensional piecewise‐linear large strain consolidation model for structured soils

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