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    Application of dynamic compaction in Port of Ras Laffan Expansion Project

    Access Status
    Fulltext not available
    Authors
    Hamidi, Babak
    Nikraz, Hamid
    Varaksin, S.
    Date
    2010
    Type
    Conference Paper
    
    Metadata
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    Citation
    Hamidi, B. and Nikraz, H. and Varaksin, S. 2010. Application of dynamic compaction in Port of Ras Laffan Expansion Project, in Teh, K. and Davies, I. and Howard, I. (ed), 6th Australasian Congress on Applied Mechanics, Dec 12 2010. Perth, WA: Engineers Australia.
    Source Title
    Proceedings of the 6th Australasian Congress on Applied Mechanics
    Source Conference
    6th Australasian Congress on Applied Mechanics
    ISBN
    978-0-85825-941-6
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/30060
    Collection
    • Curtin Research Publications
    Abstract

    Dynamic Compaction (DC) has recently been used to improve 175,000 m2 of hydraulically reclaimed land using carbonate sand and gravel and with a variable thickness of up to 16 m as part of Port of Ras Laffan expansion in Qatar. Acceptance criterion for the project was based on a minimum relative density value with CPT verification or alternatively performance criteria with Pressuremeter Testing. Due to the required depth of treatment, the innovative MARS technology was also used to drop a 35 ton pounder in free fall. Calculations based on post improvement test results clearly suggested that implementation of acceptance criteria based on a project's specific technical requirements is able to achieve project goals at a more affordable cost and in a shorter period than using specified minimum test values. During the works pockets of fine soils were identified in the treatment area. At the end of the works in addition to the anticipated field tests, a full scale load zone test was carried out at a location within the sensitive skid beams area where it was understood that the fine soil layer was thickest. Settlement monitoring indicated that short and long term settlements of the skids will be within the project specifications.

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