Discussion of ‘Factors influencing undrained strength of fine-grained soils at high water contents’ by H. B. Nagaraj, M.V. Sravan and B. S. Deepa

Haigh, Stuart; Vardanega, Paul J.; O'Kelly, BC

doi:10.1080/17486025.2019.1674453

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…For instance, the 80 g/30 • FC, with d LL = 20 mm (i.e., LL FC(BSI) ), as defined in the British standard (BS 1377-2 [7]), mobilizes an undrained shear strength (i.e., s u(LL FC) ) of approx. 1.7 kPa [13,28,29], as calculated using Hansbo's [23] FC strength equation (Equation (1)), taking a constant value of the cone factor, K, for given cone angle and surface roughness characteristics.…”

Section: Fundamental Basis and Mobilized Strengths For Ll Approachesmentioning

confidence: 99%

Review of Recent Developments and Understanding of Atterberg Limits Determinations

O’Kelly

2021

Geotechnics

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Among the most commonly specified tests in the geotechnical engineering industry, the liquid limit and plastic limit tests are principally used for (i) deducing useful design parameter values from existing correlations with these consistency limits and (ii) for classifying fine-grained soils, typically employing the Casagrande-style plasticity chart. This updated state-of-the-art review paper gives a comprehensive presentation of salient latest research and understanding of soil consistency limits determinations/measurement, elaborating concisely on the many standardized and proposed experimental testing approaches, their various fundamental aspects and possibly pitfalls, as well as some very recent alternative proposals for consistency limits determinations. Specific attention is given to fall cone testing methods advocated (but totally unsuitable) for plastic limit determination; that is, the water content at the plastic–brittle transition point, as defined using the hand rolling of threads method. A framework (utilizing strength-based fall cone-derived parameters) appropriate for correlating shear strength variation with water content over the conventional plastic range is presented. This paper then describes two new fine-grained soil classification system advancements (charts) that do not rely on the thread-rolling plastic limit test, known to have high operator variability, and concludes by discussing alternative and emerging proposals for consistency limits determinations and fine-grained soil classification.

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Section: Fundamental Basis and Mobilized Strengths For Ll Approachesmentioning

confidence: 99%

Review of Recent Developments and Understanding of Atterberg Limits Determinations

O’Kelly

2021

Geotechnics

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Discussion of “Mohajerani method: Tool for determining the liquid limit of soils using fall cone test results with strong correlation with the Casagrande test” by E. Hrubesova, B. Lunackova and M. Mohyla [Engineering Geology 278 (2020) 105852]

O’Kelly

Vardanega

Haigh

2022

Engineering Geology

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Machine learning techniques for relating liquid limit obtained by Casagrande cup and fall cone test in low-medium plasticity fine grained soils [Eng. Geol. (2021) 294, 106381]

O’Kelly

Soltani

2022

Engineering Geology

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Discussion of ‘Factors influencing undrained strength of fine-grained soils at high water contents’ by H. B. Nagaraj, M.V. Sravan and B. S. Deepa

Cited by 6 publications

References 14 publications

Review of Recent Developments and Understanding of Atterberg Limits Determinations

Review of Recent Developments and Understanding of Atterberg Limits Determinations

Discussion of “Mohajerani method: Tool for determining the liquid limit of soils using fall cone test results with strong correlation with the Casagrande test” by E. Hrubesova, B. Lunackova and M. Mohyla [Engineering Geology 278 (2020) 105852]

Machine learning techniques for relating liquid limit obtained by Casagrande cup and fall cone test in low-medium plasticity fine grained soils [Eng. Geol. (2021) 294, 106381]

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