CPT-based classification of soft organic clays and peat

H.J. Lengkeek; R.B.J. Brinkgreve

doi:10.1201/9781003308829-72

CPT-based classification of soft organic clays and peat

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Abstract

An updated CPT-based classification system of organic clays and peat is proposed based on an extensive pairwise established database of classification tests and CPT measurements. This new classification system is proposed to supplement the existing dimensionless qt/pa-Rf-chart of Robertson (2010). The Robertson (2010) dimensionless classification system is selected for refinement because it appears to perform better than normalized systems for peats with very low stresses (<20 kPa). A combination with Robertson (2009 and 2016) is possible in cases where a stress normalization cut-off is used.

Original language	English
Title of host publication	Cone Penetration Testing 2022
Editors	Guido Gottardi, Laura Tonni
Place of Publication	London
Publisher	CRC Press
Pages	509-514
Number of pages	6
ISBN (Electronic)	9781003308829
ISBN (Print)	9781032312590
DOIs	https://doi.org/10.1201/9781003308829-72
Publication status	Published - 2022
Event	5th International Symposium on Cone Penetration Testing - Bologna, Italy Duration: 8 Jun 2022 → 10 Jun 2022 https://cpt22.org/

Conference

Conference	5th International Symposium on Cone Penetration Testing
Abbreviated title	CPT 22
Country/Territory	Italy
City	Bologna
Period	8/06/22 → 10/06/22
Internet address	https://cpt22.org/

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title = "CPT-based classification of soft organic clays and peat",

abstract = "An updated CPT-based classification system of organic clays and peat is proposed based on an extensive pairwise established database of classification tests and CPT measurements. This new classification system is proposed to supplement the existing dimensionless qt/pa-Rf-chart of Robertson (2010). The Robertson (2010) dimensionless classification system is selected for refinement because it appears to perform better than normalized systems for peats with very low stresses (<20 kPa). A combination with Robertson (2009 and 2016) is possible in cases where a stress normalization cut-off is used. ",

author = "H.J. Lengkeek and R.B.J. Brinkgreve",

year = "2022",

doi = "10.1201/9781003308829-72",

language = "English",

isbn = "9781032312590",

pages = "509--514",

editor = "Guido Gottardi and Tonni, {Laura }",

booktitle = "Cone Penetration Testing 2022",

publisher = "CRC Press",

note = "5th International Symposium on Cone Penetration Testing, CPT 22 ; Conference date: 08-06-2022 Through 10-06-2022",

url = "https://cpt22.org/",

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AU - Brinkgreve, R.B.J.

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N2 - An updated CPT-based classification system of organic clays and peat is proposed based on an extensive pairwise established database of classification tests and CPT measurements. This new classification system is proposed to supplement the existing dimensionless qt/pa-Rf-chart of Robertson (2010). The Robertson (2010) dimensionless classification system is selected for refinement because it appears to perform better than normalized systems for peats with very low stresses (<20 kPa). A combination with Robertson (2009 and 2016) is possible in cases where a stress normalization cut-off is used.

AB - An updated CPT-based classification system of organic clays and peat is proposed based on an extensive pairwise established database of classification tests and CPT measurements. This new classification system is proposed to supplement the existing dimensionless qt/pa-Rf-chart of Robertson (2010). The Robertson (2010) dimensionless classification system is selected for refinement because it appears to perform better than normalized systems for peats with very low stresses (<20 kPa). A combination with Robertson (2009 and 2016) is possible in cases where a stress normalization cut-off is used.

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U2 - 10.1201/9781003308829-72

DO - 10.1201/9781003308829-72

M3 - Conference contribution

SN - 9781032312590

SP - 509

EP - 514

BT - Cone Penetration Testing 2022

A2 - Gottardi, Guido

A2 - Tonni, Laura

PB - CRC Press

CY - London

T2 - 5th International Symposium on Cone Penetration Testing

Y2 - 8 June 2022 through 10 June 2022

ER -

CPT-based classification of soft organic clays and peat

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