Hammer weight and dropping height effects on dynamic response in densely-packed geo-materials

Geunwoo Park, Jong Sub Lee, Namsun Kim, Sang Yeob Kim

Research output: Contribution to journalArticlepeer-review

Abstract

This study aims to investigate the dynamic cone penetration index (DCPI) and dynamic responses during instrumented dynamic cone penetration test at fixed-end condition (e.g., dense layer). Several types of hammer weights and heights at fixed potential energy (45.13 N∙m) is applied on the instrumented dynamic cone penetrometer (IDCP) tests. Test results show that the instrumented dynamic cone penetration index (IDCPI) is proportional to the DCPI with various gradients lower than 1.0 due to the influence of hammer weight on drivability. Dynamic responses change with respect to the end boundary condition (e.g., dense or loose layer) and location at the head or tip. In addition, the transferred energy varies with respect to the end boundary condition, location, hammer weight and height. For layer characterization, the end boundary condition should be primarily considered as well as hammer weight and height regarding drivability.

Original languageEnglish
Article number101170
JournalTransportation Geotechnics
Volume44
DOIs
Publication statusPublished - 2024 Jan

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • Drivability
  • Dynamic cone penetrometer
  • End boundary condition
  • Hammer weight
  • Height

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Transportation
  • Geotechnical Engineering and Engineering Geology

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