High strain rate characterisation of kaolin and its application to rapid load pile testing

Turlough Quinn; Scott Robinson; Michael Brown

High strain rate characterisation of kaolin and its application to rapid load pile testing

Turlough Quinn, Scott Robinson, Michael Brown

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Strain rate effects have a significant impact on the behaviour of soils, and this has implications throughout geotechnical engineering, no more so than in the testing of deep foundations. In this paper, the results of a study using high speed triaxial testing on kaolin at strain rates from 1 %/hr to 180000 %/hr are
presented, and their implications for rapid load pile testing are set out. It is shown that both the soil strength and stiffness are rate dependent, and that the strength increases generally exceeded those expected. This study demonstrates that the damping co-efficients used in the analysis of rapid load pile tests can be derived from laboratory testing and that the relationship used can accurately model the rate dependent behaviour.

Original language	English
Title of host publication	Proceedings of the 9th International Conference on Testing and Design Methods for Deep Foundations
Pages	311-319
Number of pages	9
Publication status	Published - Sept 2012
Event	9th International Conference on Testing and Design Methods for Deep Foundations - Kanazawa, Japan Duration: 18 Sept 2012 → 20 Sept 2012 http://www.abms.com.br/site/links/julho2011/Kanazawa2012.pdf

Conference

Conference	9th International Conference on Testing and Design Methods for Deep Foundations
Abbreviated title	IS-Kanazawa 2012
Country/Territory	Japan
City	Kanazawa
Period	18/09/12 → 20/09/12
Internet address	http://www.abms.com.br/site/links/julho2011/Kanazawa2012.pdf

Keywords

stain rate
rate effects
pore pressure generation
small strain
kaolin
pile testing
statnamic

2 Conference contribution
1 Chapter
1 Chapter (peer-reviewed)
1 Article

Impacts of reference strain rate and strain level dependency on rate effects in fine grained soils
Robinson, S. (Lead / Corresponding author), Brown, M. J., Knappett, J. & Brennan, A., Mar 2023, In: Geotechnique Letters. 13, 1, p. 1-6 6 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
1 Citation (Scopus)

44 Downloads (Pure)
Pile capacity testing
Brown, M., Ball, J., Burland, J., Chapman, T., Higgins, K., Skinner, H. & Toll, D., 10 Nov 2023, ICE Manual of Geotechnical Engineering, Second edition, Volume II: Geotechnical design, construction and verification. Brown, M., Burland, J., Chapman, T., Higgins, K., Skinner, H. & Toll, D. (eds.). 2nd ed. UK: Emerald Group Publishing Limited, Vol. 2. p. 1599-1620 22 p.
Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed) › peer-review

Open Access
File
177 Downloads (Pure)
Rate effects at varying strain levels in fine grained soils
Robinson, S. & Brown, M. J., 2013, 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics, ICSMGE 2013. 2013 ed. IOS Press, Vol. 1. p. 263-266 4 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Invited talk

Yamaguchi University, Japan, Invited speaker: Rate effect behaviour of different clays from high speed triaxial element testing
Brown, M. (Invited speaker)
25 Sept 2018 → 26 Sept 2018
Activity: Talk or presentation types › Invited talk

Cite this

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title = "High strain rate characterisation of kaolin and its application to rapid load pile testing",

abstract = "Strain rate effects have a significant impact on the behaviour of soils, and this has implications throughout geotechnical engineering, no more so than in the testing of deep foundations. In this paper, the results of a study using high speed triaxial testing on kaolin at strain rates from 1 %/hr to 180000 %/hr arepresented, and their implications for rapid load pile testing are set out. It is shown that both the soil strength and stiffness are rate dependent, and that the strength increases generally exceeded those expected. This study demonstrates that the damping co-efficients used in the analysis of rapid load pile tests can be derived from laboratory testing and that the relationship used can accurately model the rate dependent behaviour.",

keywords = "stain rate, rate effects, pore pressure generation, small strain, kaolin, pile testing, statnamic",

author = "Turlough Quinn and Scott Robinson and Michael Brown",

note = "This research was supported by the United Kingdom Engineering and Physical Sciences Research Council (EPSRC, Grant No. EP/E031749/1).; 9th International Conference on Testing and Design Methods for Deep Foundations, IS-Kanazawa 2012 ; Conference date: 18-09-2012 Through 20-09-2012",

year = "2012",

month = sep,

language = "English",

isbn = "9784890105977",

pages = "311--319",

booktitle = "Proceedings of the 9th International Conference on Testing and Design Methods for Deep Foundations",

url = "http://www.abms.com.br/site/links/julho2011/Kanazawa2012.pdf",

}

TY - GEN

T1 - High strain rate characterisation of kaolin and its application to rapid load pile testing

AU - Quinn, Turlough

AU - Robinson, Scott

AU - Brown, Michael

N1 - This research was supported by the United Kingdom Engineering and Physical Sciences Research Council (EPSRC, Grant No. EP/E031749/1).

PY - 2012/9

Y1 - 2012/9

N2 - Strain rate effects have a significant impact on the behaviour of soils, and this has implications throughout geotechnical engineering, no more so than in the testing of deep foundations. In this paper, the results of a study using high speed triaxial testing on kaolin at strain rates from 1 %/hr to 180000 %/hr arepresented, and their implications for rapid load pile testing are set out. It is shown that both the soil strength and stiffness are rate dependent, and that the strength increases generally exceeded those expected. This study demonstrates that the damping co-efficients used in the analysis of rapid load pile tests can be derived from laboratory testing and that the relationship used can accurately model the rate dependent behaviour.

AB - Strain rate effects have a significant impact on the behaviour of soils, and this has implications throughout geotechnical engineering, no more so than in the testing of deep foundations. In this paper, the results of a study using high speed triaxial testing on kaolin at strain rates from 1 %/hr to 180000 %/hr arepresented, and their implications for rapid load pile testing are set out. It is shown that both the soil strength and stiffness are rate dependent, and that the strength increases generally exceeded those expected. This study demonstrates that the damping co-efficients used in the analysis of rapid load pile tests can be derived from laboratory testing and that the relationship used can accurately model the rate dependent behaviour.

KW - stain rate

KW - rate effects

KW - pore pressure generation

KW - small strain

KW - kaolin

KW - pile testing

KW - statnamic

M3 - Conference contribution

SN - 9784890105977

SP - 311

EP - 319

BT - Proceedings of the 9th International Conference on Testing and Design Methods for Deep Foundations

T2 - 9th International Conference on Testing and Design Methods for Deep Foundations

Y2 - 18 September 2012 through 20 September 2012

ER -

High strain rate characterisation of kaolin and its application to rapid load pile testing

Abstract

Conference

Keywords

Fingerprint

Research output

Impacts of reference strain rate and strain level dependency on rate effects in fine grained soils

Pile capacity testing

Rate effects at varying strain levels in fine grained soils

Activities

Yamaguchi University, Japan, Invited speaker: Rate effect behaviour of different clays from high speed triaxial element testing

Cite this