Free-falling full-flow penetrometer for marine material characterization - Analytical solution

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a conceptual testing procedure and analytical development of a free-falling full-flow penetrometer. In a free-fall penetration test, the velocity changes with depth and the soil is inherently softened throughout the testing process. Investigation of the undisturbed soil properties, thus, requires a thorough large-displacement rate-dependent analysis. This paper uses previous work's analysis for constant-rate full-flow penetration with strain-softening and rate-effect treatment, implemented in a penetrometer's equation of motion, to evaluate a continuous profile of the undisturbed undrained shear strength throughout the freefalling penetration, until a full stop. A conceptual testing procedure is presented in light of the required penetration depth, device weight and falling height, with a reference to the developed analysis and correlations.

Original languageAmerican English
Title of host publicationProceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016
EditorsHugo E. Acosta-Martinez, Barry M. Lehane, Richard Kelly
Pages357-361
Number of pages5
ISBN (Electronic)9780994626110
StatePublished - 1 Jan 2016
Event5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016 - Gold Coast, Australia
Duration: 5 Sep 20169 Sep 2016

Publication series

NameProceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016
Volume1

Conference

Conference5th International Conference on Geotechnical and Geophysical Site Characterisation, ISC 2016
Country/TerritoryAustralia
CityGold Coast
Period5/09/169/09/16

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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