Reinforced Stone Columns in Weak Deposits – A Laboratory Model Study

J.A. Black, Vinayagamoothy Sivakumar, M.R. Madhav, Gerard Hamill

    Research output: Contribution to journalArticle

    99 Citations (Scopus)

    Abstract

    This paper investigates the performance of stone columns in a weak deposit such as peat. It evaluates the effects of reinforcing stone columns by jacketing with a tubular wire mesh and bridging reinforcement with a metal rod and a concrete plug. A series of plate loading tests was conducted on isolated stone columns installed in a soil bed consisting of a peat layer sandwiched between two layers of sand. The load–displacement characteristics of footings supported by stone columns were investigated by applying load to a circular plate supported on: (a) untreated soil; (b) soil treated with stone columns; and (c) soil treated with stone columns reinforced with the above reinforcing techniques. The work has shown that the settlement characteristics of the soil can be improved by installing stone columns and that a significant enhancement in the load–settlement response is achieved when the columns are reinforced by the various methods.
    Original languageEnglish
    Pages (from-to)1154-1161
    Number of pages8
    JournalJournal of Geotechnical and Geoenvironmental Engineering
    Volume133 (9)
    Issue number9
    DOIs
    Publication statusPublished - Sep 2007

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology
    • Environmental Science(all)

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