Experimental and Numerical Studies on the Performances of Stone Column and Sand Compaction Pile-Reinforced Hong Kong Marine Clay

Wei Qiang Feng, Dao Yuan Tan, Jian Hua Yin, Jie Qiong Qin, Wen Bo Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Stone columns (SCs) and sand compaction piles (SCPs) are widely utilized as effective methods to increase the bearing capacity and reduce the settlement of soft ground. In this study, a physical model test was conducted to compare the performances of the SC- A nd SCP-improved Hong Kong Marine Clay (HKMC) grounds. Finite-element (FE) modeling was performed to analyze the settlement and stress increment. A practical equation related to the area replacement ratio and the friction angle of columns is proposed for determining the creep improvement ratio of soft ground treated by columns, which agrees well with the creep improvement ratios from the FE simulations.

Original languageEnglish
Article number06020018
JournalInternational Journal of Geomechanics
Volume20
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • Creep improvement ratio
  • Marine clay
  • Sand compaction pile
  • Stone column

ASJC Scopus subject areas

  • Soil Science

Cite this