Calibration and use of a new automatic sand pourer

Y. Zhao, K. Gafar, M. Z.E.B. Elshafie, A. D. Deeks, J. A. Knappett, S. P.G. Madabhushi

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

    66 Citations (Scopus)


    Calibration test results are presented for a new automatic moving-hopper type sand pourer using a multiple-sieving pluviation arrangement, recently commissioned at the University of Cambridge. These results demonstrate its capabilities in preparing uniform sand beds using a typical fine, uniformly graded silica sand, for the purposes of centrifuge and 1-g modeling. Relative densities achieved were between 50 to 90%. The relative density of the sample was found to vary most with the sand flow rate, while varying the drop height has a relatively minor effect. The size and shape of the model container to be filled also has a sizable effect on relative density. Local variation of density along a particular dimension of a container was measured to be within ±4% of the mean value. Sample uniformity was confirmed by in-flight CPT tests.

    Original languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics, 6th ICPMG'06 - Proceedings of the 6th International Conference on Physical Modelling in Geotechnics
    PublisherCRC Press
    Number of pages6
    ISBN (Print)041541587X, 9780415415873
    Publication statusPublished - 2006
    Event6th International Conference on Physical Modelling in Geotechnics, ICPMG'06 - Hong Kong, Hong Kong
    Duration: 4 Aug 20066 Aug 2006


    Conference6th International Conference on Physical Modelling in Geotechnics, ICPMG'06
    Abbreviated titleICPMG'06
    Country/TerritoryHong Kong
    CityHong Kong

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology


    Dive into the research topics of 'Calibration and use of a new automatic sand pourer'. Together they form a unique fingerprint.

    Cite this