Compressibility Characteristics of Korean Marine Clay

Suneel, Matchala; Park, Lee Keun; Im, Jong Chul

doi:10.1080/10641190802022478

Cited by 36 publications

(11 citation statements)

References 10 publications

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“…For all three clays, C αe increases with the increase in the consolidation stress regardless of the sampling angle and reaches a maximum at a stress about twice the preconsolidation pressure; thereafter, C αe decreases irrespective of clay sample or sampling angle. This observation is consistent with previous studies (Mesri and Godlewski, 1977;Suneel et al, 2008) on various clays in the vertical direction.…”

Section: Secondary Compressionsupporting

confidence: 83%

Influence of natural deposition plane orientation on oedometric consolidation behavior of three typical clays from southeast coast of China

Zhu

Jin

Yin

et al. 2013

J. Zhejiang Univ. Sci. A

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Abstract:The parameters obtained from oedometric consolidation tests are commonly used in the development of constitutive modeling and for engineering practice. This paper focuses on the influence of the natural deposition plane orientation on oedometric consolidation behavior of three natural clays from the southeast coast of China. Oedometer tests were conducted on intact specimens prepared by sampling at a series of angles relative to the natural deposition plane. For each specimen, yield stress, compressibility indexes, secondary compression, and permeability coefficients were determined. The influence of the sampling angle on these properties was investigated, revealing that yield stress, compression index, swelling index, creep index, ratio of secondary compression coefficient to compression index (C e /C c ) and permeability coefficient were all dependent to some extent on the sampling angle. These findings indicate the role of the anisotropy due to the natural deposition on the oedometric consolidation behavior.

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Section: Secondary Compressionsupporting

confidence: 83%

Influence of natural deposition plane orientation on oedometric consolidation behavior of three typical clays from southeast coast of China

Zhu

Jin

Yin

et al. 2013

J. Zhejiang Univ. Sci. A

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“…This divergence about the relationship between Cαe and Cc could be related to the applied vertical stress range values, i.e., it is more likely to observe a convex relationship at high vertical stresses. Whatever is the shape of this relationship, the Cαe/Cc ratio was found to be constant during the tests 5,17,20,[23][24][25] .…”

Section: Introductionmentioning

confidence: 90%

“…The creep coefficient Cαe is both time and stress dependent 5,[12][13][14][15][16][17] . Suneel et al 17 showed that the creep strain increases with increasing effective stress in normally consolidated state. In addition, the value of Cαe is related to other soil parameters (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…This observation was confirmed by many other researchers on various soils 18,19 . Later, it was found that Cαe and Cc increase with the effective vertical stress, reach a maximum value at a stress slightly higher than the yield stress, and then decrease and finally remain constant 14,17,[21][22][23] . This divergence about the relationship between Cαe and Cc could be related to the applied vertical stress range values, i.e., it is more likely to observe a convex relationship at high vertical stresses.…”

Section: Introductionmentioning

confidence: 99%

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Influence of effective stress and temperature on the creep behavior of a saturated compacted clayey soil

Kaddouri

Cuisinier

Masrouri

2019

Geomechanics for Energy and the Environment

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The compacted clay barrier of shallow depth repositories for wastes would be subjected to temperature variations. Consequently, the hydro-mechanical properties of compacted clays could be progressively modified, and thus affect the performance of repositories. The influence of effective stress and temperature on the creep behavior of a saturated compacted clayey soil was experimentally investigated by performing a series of incremental loading creep tests using a temperature-controlled oedometer. Applied effective vertical stress varied from 10 to 1300 kPa within a large temperature range of 5°C to 70°C. The results showed that the compression and swelling indices appear not to be affected by temperature, whereas the yield stress decreases as the temperature increases. The secondary compression is time-dependent; creep strains decrease with time till reaching a stable value corresponding to a period of 10 days. The creep coefficient Cαe increases with the increase of the effective stress and temperature. Moreover, relationships between the creep coefficient Cαe, incremental compression index C * c, effective stress and temperature were further analyzed. A linear relationship between Cαe and C * c was observed in the considered stress range and the (Cαe/C * c) ratio appears to be temperature dependent. Finally, the main results were discussed and interpreted in the light of a suitable constitutive framework.

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“…There is also evidence that C ae either increases with the effective stress until the yield/ preconsolidation pressure and remains constant thereafter [18,33] or increases almost linearly with increasing effective stress [21]. Additionally, there have been some studies on the influence of the physical properties on the C ae [1,53,58,70,77,81]. However, many geotechnical correlations can only be applied in specific soil conditions and only for the limited soil types or regions of the occurrence.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation of the influence of plasticity on creep degradation rate

Olek

2021

Acta Geotech.

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Intrinsic soil properties, such as the Atterberg limits, are essential factors influencing the mechanical behaviour of the fine-grained soils. In this study, a series of long-term multiple-stage loading oedometer tests were performed on alluvial organic soils to investigate the creep behaviour. The plasticity ratios ranged from 0.4 to 0.63. The smaller value of the plasticity ratio Rp indicated higher soil plasticity. The results showed that the coefficient of secondary compression Cαe of alluvial organic soils was stress- and strain-rate-dependent. The coefficient of secondary compression change index m was derived using a double-logarithmic approach for a creep degradation and was related to the plasticity and clay percentage to fines. Based on the results, it was found that high plasticity soils exhibit slow creep degradation rate during one-dimensional straining under normally consolidated state. The results show that the higher soil plasticity expressed by the plasticity index, plasticity ratio and clay percentage to fines, smaller the coefficient of secondary compression change index. Moreover, the correlations among a soil plasticity properties and creep parameters for the alluvial soils have also been proposed.

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Compressibility Characteristics of Korean Marine Clay

Cited by 36 publications

References 10 publications

Influence of natural deposition plane orientation on oedometric consolidation behavior of three typical clays from southeast coast of China

Influence of natural deposition plane orientation on oedometric consolidation behavior of three typical clays from southeast coast of China

Influence of effective stress and temperature on the creep behavior of a saturated compacted clayey soil

An experimental investigation of the influence of plasticity on creep degradation rate

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