Evaluating geoparameters of Maine sensitive clay by CPTU

P. W. Mayne; P. Paniagua; B. Di Buò; S. S. Agaiby

doi:10.1201/9781003308829-79

Evaluating geoparameters of Maine sensitive clay by CPTU

P. W. Mayne
, P. Paniagua
, B. Di Buò
, S. S. Agaiby

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

108 Downloads (Pure)

Abstract

Using two sets of analytical solutions for CPTU in clays, a suite of theoretically-consistent geoparameters is shown to be in good agreement with independent laboratory and field test results obtained on sensitive Presumpscot clay in Portland, Maine, USA. Fall cone tests indicate a mean sensitivity of S_t ≈ 37. Values of undrained rigidity index (I_R ), undrained shear strength (s_u ), and yield stress ratio (YSR) are provided by a modified spherical cavity expansion-critical state hybrid model while an effective stress limit plasticity solution is utilized to assess the effective friction angle of the sensitive clay at both peak strength [ϕ' at q_max ] and also at maximum obliquity [ϕ' at (σ₁ '/σ₃ ')_max ]. A CPTU screening method that uses three simplified equations for YSR helps to identify that the clay is sensitive.

Original language	English
Title of host publication	Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022
Editors	Guido Gottardi, Laura Tonni
Publisher	CRC Press
Pages	552-558
Number of pages	7
ISBN (Electronic)	9781003308829
DOIs	https://doi.org/10.1201/9781003308829-79
Publication status	Published - 2022
Publication type	A4 Article in conference proceedings
Event	International Symposium on Cone Penetration Testing - Bologna, Italy Duration: 8 Jun 2022 → 10 Jun 2022 Conference number: 5 https://cpt22.org/

Publication series

Name	Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022

Conference

Conference	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/

Funding

The first author extends appreciation to ConeTec Group of Burnaby, BC for providing funds to Georgia Tech on in-situ research activities.

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1201/9781003308829-79Licence: CC BY-NC-ND

10.1201_9781003308829-79_chapterpdfFinal published version, 1.22 MBLicence: CC BY-NC-ND

https://urn.fi/URN:NBN:fi:tuni-202302072115Licence: CC BY-NC-ND

Cite this

Mayne, P. W., Paniagua, P., Di Buò, B., & Agaiby, S. S. (2022). Evaluating geoparameters of Maine sensitive clay by CPTU. In G. Gottardi, & L. Tonni (Eds.), Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022 (pp. 552-558). (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022). CRC Press. https://doi.org/10.1201/9781003308829-79

Mayne, P. W. ; Paniagua, P. ; Di Buò, B. et al. / Evaluating geoparameters of Maine sensitive clay by CPTU. Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. editor / Guido Gottardi ; Laura Tonni. CRC Press, 2022. pp. 552-558 (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022).

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title = "Evaluating geoparameters of Maine sensitive clay by CPTU",

abstract = "Using two sets of analytical solutions for CPTU in clays, a suite of theoretically-consistent geoparameters is shown to be in good agreement with independent laboratory and field test results obtained on sensitive Presumpscot clay in Portland, Maine, USA. Fall cone tests indicate a mean sensitivity of St ≈ 37. Values of undrained rigidity index (IR ), undrained shear strength (su ), and yield stress ratio (YSR) are provided by a modified spherical cavity expansion-critical state hybrid model while an effective stress limit plasticity solution is utilized to assess the effective friction angle of the sensitive clay at both peak strength [ϕ' at qmax ] and also at maximum obliquity [ϕ' at (σ1 '/σ3 ')max ]. A CPTU screening method that uses three simplified equations for YSR helps to identify that the clay is sensitive.",

author = "Mayne, \{P. W.\} and P. Paniagua and \{Di Bu{\`o}\}, B. and Agaiby, \{S. S.\}",

note = "Funding Information: The first author extends appreciation to ConeTec Group of Burnaby, BC for providing funds to Georgia Tech on in-situ research activities. Publisher Copyright: {\textcopyright} 2022 the Author(s).; International Symposium on Cone Penetration Testing, CPT{\textquoteright}22 ; Conference date: 08-06-2022 Through 10-06-2022",

year = "2022",

doi = "10.1201/9781003308829-79",

language = "English",

series = "Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022",

publisher = "CRC Press",

pages = "552--558",

editor = "Guido Gottardi and Laura Tonni",

booktitle = "Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022",

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}

Mayne, PW, Paniagua, P, Di Buò, B & Agaiby, SS 2022, Evaluating geoparameters of Maine sensitive clay by CPTU. in G Gottardi & L Tonni (eds), Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022, CRC Press, pp. 552-558, International Symposium on Cone Penetration Testing, Bologna, Italy, 8/06/22. https://doi.org/10.1201/9781003308829-79

Evaluating geoparameters of Maine sensitive clay by CPTU. / Mayne, P. W.; Paniagua, P.; Di Buò, B. et al.
Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. ed. / Guido Gottardi; Laura Tonni. CRC Press, 2022. p. 552-558 (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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N2 - Using two sets of analytical solutions for CPTU in clays, a suite of theoretically-consistent geoparameters is shown to be in good agreement with independent laboratory and field test results obtained on sensitive Presumpscot clay in Portland, Maine, USA. Fall cone tests indicate a mean sensitivity of St ≈ 37. Values of undrained rigidity index (IR ), undrained shear strength (su ), and yield stress ratio (YSR) are provided by a modified spherical cavity expansion-critical state hybrid model while an effective stress limit plasticity solution is utilized to assess the effective friction angle of the sensitive clay at both peak strength [ϕ' at qmax ] and also at maximum obliquity [ϕ' at (σ1 '/σ3 ')max ]. A CPTU screening method that uses three simplified equations for YSR helps to identify that the clay is sensitive.

AB - Using two sets of analytical solutions for CPTU in clays, a suite of theoretically-consistent geoparameters is shown to be in good agreement with independent laboratory and field test results obtained on sensitive Presumpscot clay in Portland, Maine, USA. Fall cone tests indicate a mean sensitivity of St ≈ 37. Values of undrained rigidity index (IR ), undrained shear strength (su ), and yield stress ratio (YSR) are provided by a modified spherical cavity expansion-critical state hybrid model while an effective stress limit plasticity solution is utilized to assess the effective friction angle of the sensitive clay at both peak strength [ϕ' at qmax ] and also at maximum obliquity [ϕ' at (σ1 '/σ3 ')max ]. A CPTU screening method that uses three simplified equations for YSR helps to identify that the clay is sensitive.

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M3 - Conference contribution

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T2 - International Symposium on Cone Penetration Testing

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Mayne PW, Paniagua P, Di Buò B, Agaiby SS. Evaluating geoparameters of Maine sensitive clay by CPTU. In Gottardi G, Tonni L, editors, Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. CRC Press. 2022. p. 552-558. (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022). doi: 10.1201/9781003308829-79

Evaluating geoparameters of Maine sensitive clay by CPTU

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