Instrumented cone penetrometer for dense layer characterization

Jong Sub Lee, Yong Hoon Byun

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Subsurface characterization is essential for a successful infrastructure design and construction. This paper demonstrates the use of an instrumented cone penetrometer (ICP) for a dense layer characterization at two sites. The ICP consists of a cone tip and rods equipped with an accelerometer and four strain gauges, which allow dynamic driving, in addition to quasi-static pushing of the cone. The force and velocity of the cone are measured using the ICP instrumentation and compared with the N value, dynamic cone penetration index, and static cone resistance. A strong correlation has been observed between the total cone resistance estimated from the ICP and the dynamic cone penetration index and static cone resistance. After the correction of the dynamic cone resistance effect, the static component of the total cone resistance can be used as an alternative to a static cone resistance. This novel approach of soil resistance estimation using the ICP may be useful for dense layer characterization.

Original languageEnglish
Article number5782
Pages (from-to)1-19
Number of pages19
JournalSensors (Switzerland)
Volume20
Issue number20
DOIs
Publication statusPublished - 2020 Oct 2

Keywords

  • Cone penetrometer
  • Dense layer
  • Dynamic response
  • In situ test
  • Subsurface characterization

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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