A new shared miniature cone penetrometer for centrifuge testing

T. Carey, A. Gavras, B. Kutter, S. K. Haigh, S. P.G. Madabhushi, M. Okamura, D. S. Kim, K. Ueda, W. Y. Hung, Y. G. Zhou, K. Liu, Y. M. Chen, M. Zeghal, T. Abdoun, S. Escoffier, M. Manzari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Cone penetrometers (CPTs) are commonly used for characterising the soil properties of centrifuge models; CPT data is useful for interpretation and quality control. This paper describes the development and design of a new robust CPT device for centrifuge testing. The new device consists of a 6mm cone, an outer sleeve, and an inner rod that transmits cone tip forces to a load cell above the ground surface. The design eliminates the need for a custom submerged strain gauge bridge near the tip, significantly reducing cost.A direct comparison was performed between this CPT device and another similar device developed at the University of Cambridge. CPT’s were manufactured using the new design and then shipped to eight different centrifuge facilities, for quality control of similar experiments performed for LEAP (Liquefaction Experiments and Analysis Projects). All the centrifuge tests simulated a 4 m deep deposit of soil, all consisting of Ottawa F-65 sand with relative densities ranging between about 45 to 80%. The results obtained have been extremely valuable as an independent assessment of the density calculated from mass and volume measurements at different laboratories.

Original languageEnglish (US)
Title of host publicationPhysical Modelling in Geotechnics
EditorsAndrew McNamara, Sam Divall, Richard Goodey, Neil Taylor, Sarah Stallebrass, Jignasha Panchal
PublisherCRC Press/Balkema
Pages293-298
Number of pages6
ISBN (Print)9781138559752
DOIs
StatePublished - Jul 2018
Event9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018 - London, United Kingdom
Duration: Jul 17 2018Jul 20 2018

Publication series

NamePhysical Modelling in Geotechnics
Volume1

Conference

Conference9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018
CountryUnited Kingdom
CityLondon
Period7/17/187/20/18

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ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Carey, T., Gavras, A., Kutter, B., Haigh, S. K., Madabhushi, S. P. G., Okamura, M., Kim, D. S., Ueda, K., Hung, W. Y., Zhou, Y. G., Liu, K., Chen, Y. M., Zeghal, M., Abdoun, T., Escoffier, S., & Manzari, M. (2018). A new shared miniature cone penetrometer for centrifuge testing. In A. McNamara, S. Divall, R. Goodey, N. Taylor, S. Stallebrass, & J. Panchal (Eds.), Physical Modelling in Geotechnics (pp. 293-298). (Physical Modelling in Geotechnics; Vol. 1). CRC Press/Balkema. https://doi.org/10.1201/9780429438660-38