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    Probabilistic Analysis Of Offshore Site Exploration

    Source: Journal of Geotechnical Engineering:;1986:;Volume ( 112 ):;issue: 011
    Author:
    Tien H. Wu
    ,
    John C. Potter
    ,
    Oddvar Kjekstad
    DOI: 10.1061/(ASCE)0733-9410(1986)112:11(981)
    Publisher: American Society of Civil Engineers
    Abstract: The uncertainties associated with the predicted bearing capacity of an offshore gravity platform arise from incomplete knowledge about the type of material that is encountered at different points along the slip surface and the strengths of these materials. Uncertainty about material strength is caused by scatter in test data and differences between measured strength and in situ strength. The probability of finding different materials, given the materials as identified at the location of boreholes, is evaluated from the proximity rule. This is combined with the uncertainty due to data scatter and inaccuracy of the test methods to estimate the variance of the foundation resistance. The procedure makes it possible to evaluate the uncertainty about foundation resistance at various stages of a site exploration program. The effects of additional boreholes and improved testing methods can be evaluated separately and used to help decision making in site exploration. The site exploration data from the Brent B‐G site are analyzed as an example.
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      Probabilistic Analysis Of Offshore Site Exploration

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    http://yetl.yabesh.ir/yetl1/handle/yetl/19851
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    contributor authorTien H. Wu
    contributor authorJohn C. Potter
    contributor authorOddvar Kjekstad
    date accessioned2017-05-08T20:34:11Z
    date available2017-05-08T20:34:11Z
    date copyrightNovember 1986
    date issued1986
    identifier other%28asce%290733-9410%281986%29112%3A11%28981%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/19851
    description abstractThe uncertainties associated with the predicted bearing capacity of an offshore gravity platform arise from incomplete knowledge about the type of material that is encountered at different points along the slip surface and the strengths of these materials. Uncertainty about material strength is caused by scatter in test data and differences between measured strength and in situ strength. The probability of finding different materials, given the materials as identified at the location of boreholes, is evaluated from the proximity rule. This is combined with the uncertainty due to data scatter and inaccuracy of the test methods to estimate the variance of the foundation resistance. The procedure makes it possible to evaluate the uncertainty about foundation resistance at various stages of a site exploration program. The effects of additional boreholes and improved testing methods can be evaluated separately and used to help decision making in site exploration. The site exploration data from the Brent B‐G site are analyzed as an example.
    publisherAmerican Society of Civil Engineers
    titleProbabilistic Analysis Of Offshore Site Exploration
    typeJournal Paper
    journal volume112
    journal issue11
    journal titleJournal of Geotechnical Engineering
    identifier doi10.1061/(ASCE)0733-9410(1986)112:11(981)
    treeJournal of Geotechnical Engineering:;1986:;Volume ( 112 ):;issue: 011
    contenttypeFulltext
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