Dynamic p-y analysis method based on cone penetration test results for monopiles in sand

Jinoh Kim, Garam Kim, Junhwan Lee

Research output: Contribution to journalArticlepeer-review


In this study, a CPT-based dynamic p-y analysis method was proposed for the seismic design of piles in sand. The proposed method is aimed at establishing an effective seismic design method for monopiles by directly incorporating in-situ test results into the design process. For this purpose, the continuous and in-situ soil profiling capability of CPT is utilized, which can further enhance the seismic design of monopiles by minimizing uncertainties involved in soil characterization process based on sampling and lab testing procedure. The proposed method was established based on the pseudo-static analysis with the dynamic p-y curve and equivalent static load. The CPT-based p-y curve was formulated as a function of the cone resistance considering damping effect. The load responses of dynamic load test were compared with results obtained from the proposed method and the finite element analysis. It was shown that the proposed CPT-based dynamic p-y method was effective for the seismic design of monopiles.

Original languageEnglish
Article number107503
JournalSoil Dynamics and Earthquake Engineering
Publication statusPublished - 2022 Dec

Bibliographical note

Funding Information:
This research was conducted with the support of the “ National R&D Project for Smart Construction Technology (No. 22SMIP-A158708-03 )” funded by the Korea Agency for Infrastructure Technology Advancement under the Ministry of Land, Infrastructure and Transport , and managed by the Korea Expressway Corporation . It was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) . (No. 2020R1A2C201196613 ).

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science


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