Estimation of in-situ strength for sandy soils using CPT cone resistance

Junhwan Lee, Doohyun Kyung, Jungmoo Hong

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

Abstract

The shear strength of soils is key design property that governs the stability of geotechnical structures. For clays, the undrained shear strength is commonly adopted in design, while the friction angle is a soil property that represents the shear strength of sands. Estimation of these properties is a challenging task, and the challenge is even greater for sandy soils since the strength is highly state-dependent and undisturbed soil sampling is difficult. As a result, various empirical correlations based on in-situ test results, such as SPT and CPT, have been proposed. However, further investigation is still necessary for the consideration of the state-dependent dilatancy and soil constitution. In the present study, a CPT-based method for the estimation of the in-situ strength for granular soils is investigated. Various field variables such as fines content, soil density and confining stress are considered. A series of laboratory test results obtained for various soil conditions are used in the analysis and investigation.

Original languageEnglish
Title of host publicationDeep Foundations and Geotechnical In Situ Testing - Proceedings of the 2010 GeoShanghai International Conference
Pages361-366
Number of pages6
Edition205 GSP
DOIs
Publication statusPublished - 2010 Sep 6
Event2010 GeoShanghai International Conference - Deep Foundations and Geotechnical In Situ Testing - Shanghai, China
Duration: 2010 Jun 32010 Jun 5

Publication series

NameGeotechnical Special Publication
Number205 GSP
ISSN (Print)0895-0563

Other

Other2010 GeoShanghai International Conference - Deep Foundations and Geotechnical In Situ Testing
CountryChina
CityShanghai
Period10/6/310/6/5

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All Science Journal Classification (ASJC) codes

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

Cite this

Lee, J., Kyung, D., & Hong, J. (2010). Estimation of in-situ strength for sandy soils using CPT cone resistance. In Deep Foundations and Geotechnical In Situ Testing - Proceedings of the 2010 GeoShanghai International Conference (205 GSP ed., pp. 361-366). (Geotechnical Special Publication; No. 205 GSP). https://doi.org/10.1061/41106(379)46