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    Sands subjected to repetitive vertical loading under zero lateral strain: accumulation models, terminal densities, and settlement

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    Type
    Article
    Authors
    Chong, Song Hun
    Santamarina, Carlos cc
    KAUST Department
    Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
    Earth Science and Engineering Program
    Energy Resources and Petroleum Engineering
    Physical Science and Engineering (PSE) Division
    Date
    2016-08-09
    Online Publication Date
    2016-08-09
    Print Publication Date
    2016-12
    Permanent link to this record
    http://hdl.handle.net/10754/622597
    
    Metadata
    Show full item record
    Abstract
    Geosystems often experience numerous loading cycles. Plastic strain accumulation during repetitive mechanical loads can lead to shear shakedown or continued shear ratcheting; in all cases, volumetric strains diminish as the specimen evolves towards terminal density. Previously suggested models and new functions are identified to fit plastic strain accumulation data. All accumulation models are formulated to capture terminal density (volumetric strain) and either shakedown or ratcheting (shear strain). Repetitive vertical loading tests under zero lateral strain conditions are conducted using three different sands packed at initially low and high densities. Test results show that plastic strain accumulation for all sands and density conditions can be captured in the same dimensionless plot defined in terms of the initial relative density, terminal density, and ratio between the amplitude of the repetitive load and the initial static load. This observation allows us to advance a simple but robust procedure to estimate the maximum one-dimensional settlement that a foundation could experience if subjected to repetitive loads. © 2016, Canadian Science Publishing. All rights reserved.
    Citation
    Chong S-H, Santamarina JC (2016) Sands subjected to repetitive vertical loading under zero lateral strain: accumulation models, terminal densities, and settlement. Canadian Geotechnical Journal 53: 2039–2046. Available: http://dx.doi.org/10.1139/cgj-2016-0032.
    Sponsors
    This research was conducted by the authors while at the Georgia Institute of Technology. Support for this research was provided by the Goizueta Foundation and the KAUST endowment.
    Publisher
    Canadian Science Publishing
    Journal
    Canadian Geotechnical Journal
    DOI
    10.1139/cgj-2016-0032
    Additional Links
    http://www.nrcresearchpress.com/doi/10.1139/cgj-2016-0032#.WFZL83pwt9w
    ae974a485f413a2113503eed53cd6c53
    10.1139/cgj-2016-0032
    Scopus Count
    Collections
    Articles; Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC); Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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