Discussion of “Correlations for undrained shear strength of Finnish soft clays”

Mesri, G.; Cai, Wei

doi:10.1139/cgj-2016-0686

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…Recently, D 'Ignazio et al (2016) and the following discussion between Wang (2017) andD'Ignazio et al (2017), have provided additional knowledge on this subject. One of the important findings by D' Ignazio et al (2016) is that the correlation between s u , which was obtained by field vane (FV) tests (s FV u ðmobÞ), and r ; p , which was obtained from incremental or constant rate of strain (CRS) oedometer tests, are independent of the soils plasticity, i.e.…”

Section: Introductionmentioning

confidence: 97%

On Empirical Correlations for Normalised Shear Strengths from Fall Cone and Direct Simple Shear Tests in Soft Swedish Clays

Hov

Prästings

Persson³

et al. 2021

Geotech Geol Eng

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Empirical correlations provide valuable information in early design stages, and they help to validate or discard single values from site investigations. This paper presents a multivariate database from commercial projects consisting of evaluated shear strengths obtained from direct simple shear tests and fall cone tests (which are calibrated to the field vane test), including index tests. The multivariate database is used to investigate the performance of common transformation models and to test the recommended correction for fall cone tests. It is found that the measured normalised shear strength evaluated from direct simple shear tests and fall cone tests is correlated to the liquid limit and that the results conform to Swedish and Norwegian recommendations. However, the scatter is large, more for fall cone tests than for direct simple shear tests, which is thought to depend mainly on sample disturbance. It can however be concluded that the trend of normalised shear strengths increases with increasing plasticity.

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Section: Introductionmentioning

confidence: 97%

On Empirical Correlations for Normalised Shear Strengths from Fall Cone and Direct Simple Shear Tests in Soft Swedish Clays

Hov

Prästings

Persson³

et al. 2021

Geotech Geol Eng

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“…Karlsson and Viberg (1967) found no unique relationship and concluded that there are several factors influencing undrained shear stress [3]. In addition, Mesri and Cai (2017) [16] proposed that the relationship between Su and ′ can be constant, which the more recent study by D'Ignazio et al proved [17]. Lechowicz et al (2017) have performed dilatometer and laboratory tests on heavily preconsolidated boulder clays and Pliocene clays prevailing in the Warsaw region [18].…”

Section: Introductionmentioning

confidence: 99%

Slope Stability of Embankments on Soft Soil Improved with Vertical Drains

et al. 2020

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The overloads of structures or embankments built on clayey soft ground are generally applied gradually, respecting a specific phasing. This phasing on construction allows the undrained shear strength of clay increasing over consolidation in order to avoid the risk of collapse during loading. In this work, the undrained shear strength of clay over the consolidation was estimated following SHANSEP method of which parameters proposed by eight researchers have been employed, as well as the slope stability analysis of embankments on soft soils during staged construction. Assessment of factor of safety for slope stability was conducted basing on the Bishop method. Additionally, the variations of undrained shear strength and factor of safety were presented. In order to validate the methods discussed in this study, slope stability analysis of five embankments constructed on clayey soft soils improved by the vertical drain technique in a high-speed railway construction project in Morocco was performed. For these embankments, field measurements about lateral displacement are presented. It was found that some of the adopted methods is in a good agreement with field measurements. Hence, generalization of these methods to many soft ground cases can be proposed.

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Statistical evaluation and simplified approach for estimating excavation induced deformations in soft soils

Bahadır

Unutmaz

2022

Arab J Geosci

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Discussion of “Correlations for undrained shear strength of Finnish soft clays”

Cited by 7 publications

References 11 publications

On Empirical Correlations for Normalised Shear Strengths from Fall Cone and Direct Simple Shear Tests in Soft Swedish Clays

On Empirical Correlations for Normalised Shear Strengths from Fall Cone and Direct Simple Shear Tests in Soft Swedish Clays

Slope Stability of Embankments on Soft Soil Improved with Vertical Drains

Statistical evaluation and simplified approach for estimating excavation induced deformations in soft soils

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