Evaluation of the PVD smear zone using micro penetrometer

Raehyun Kim, Young Min Choi, Jong-Sub Lee, Woojin Lee

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

2 Citations (Scopus)

Abstract

In this study, small sized micro cone penetrometers with 3mm, 5mm and 7mm outer diameters are designed and manufactured in order to evaluate the dimension and shape of the smear zone of prefabricated vertical drain (PVD). The tip resistance is measured by using strain gauges and fiber optic sensors attached near the micro cone tip. The PVD smear zone is investigated by a series of radial penetration tests in the clay specimen prepared in a large-scale consolidometer. Almost constant value of the cone tip resistance is measured within the undisturbed zone. The outer boundary of the smear zone is identified as the location where the deviation of the measured cone tip resistance from the constant value is observed. In addition, the significant change in cone tip resistance is observed in the smear zone with remarkably consistent patterns. This study shows that the PVD smear zone has the asymmetric shape and is effectively detected by using micro penetrometer.

Original languageEnglish
Title of host publicationGeotechnical Special Publication
Pages998-1007
Number of pages10
Edition199
DOIs
Publication statusPublished - 2010 Dec 1
EventGeoFlorida 2010: Advances in Analysis, Modeling and Design Conference - West Palm Beach, FL, United States
Duration: 2010 Feb 202010 Feb 24

Other

OtherGeoFlorida 2010: Advances in Analysis, Modeling and Design Conference
CountryUnited States
CityWest Palm Beach, FL
Period10/2/2010/2/24

Fingerprint

penetrometer
drain
Cones
Fiber optic sensors
Strain gages
penetration test
fiber optics
Clay
evaluation
gauge
sensor
clay

Keywords

  • Cone penetration
  • Evaluation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction

Cite this

Kim, R., Choi, Y. M., Lee, J-S., & Lee, W. (2010). Evaluation of the PVD smear zone using micro penetrometer. In Geotechnical Special Publication (199 ed., pp. 998-1007) https://doi.org/10.1061/41095(365)99

Evaluation of the PVD smear zone using micro penetrometer. / Kim, Raehyun; Choi, Young Min; Lee, Jong-Sub; Lee, Woojin.

Geotechnical Special Publication. 199. ed. 2010. p. 998-1007.

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

Kim, R, Choi, YM, Lee, J-S & Lee, W 2010, Evaluation of the PVD smear zone using micro penetrometer. in Geotechnical Special Publication. 199 edn, pp. 998-1007, GeoFlorida 2010: Advances in Analysis, Modeling and Design Conference, West Palm Beach, FL, United States, 10/2/20. https://doi.org/10.1061/41095(365)99
Kim R, Choi YM, Lee J-S, Lee W. Evaluation of the PVD smear zone using micro penetrometer. In Geotechnical Special Publication. 199 ed. 2010. p. 998-1007 https://doi.org/10.1061/41095(365)99
Kim, Raehyun ; Choi, Young Min ; Lee, Jong-Sub ; Lee, Woojin. / Evaluation of the PVD smear zone using micro penetrometer. Geotechnical Special Publication. 199. ed. 2010. pp. 998-1007
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