APPROPRIATE SAMPLE SIZE AND CHARACTERISTIC VALUES ESTIMATION OF SOIL PARAMETERS

Setiawan, Budhi and Honjo, Yusuke (2008) APPROPRIATE SAMPLE SIZE AND CHARACTERISTIC VALUES ESTIMATION OF SOIL PARAMETERS. In: Geotechnical & Highway Engineering (GEOTROPIKA 2008), 26th-27th May 2008, Kuala Lumpur, Malaysia.

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    Abstract

    A method is described to determine the sample size in two kind of estimation variance function of local average (LA). One is local estimation (LE) adn other, general estimation (GE) of average. The geotechnical implications of these two estimations are that LE is to estimate LA of geotechnical parameters at the spot where the investigations are made, whereas GE is to estimate the LA at any arbitrary location within the same layer. The necessary sample size is selected to ensure enough sample size in estimating characteristic value of soil parameters.The method requires computations that can be performed using a computer program. Tables are provided to select the necessary sample size based on these computations.That standpoint of this study are different from existing studies in the sense that an assumption of independently and identically distributed (i.id) sample in traditional statistical theory is repalced by an assumption of correlated sample from a stationary ramdom field.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: characteristic value, sample size, random field, correlation structure, variance function
    Subjects: Q Science > QE Geology
    Divisions: Faculty of Engineering > Department of Civil Engineering
    Depositing User: Hairul Anwar
    Date Deposited: 06 Sep 2013 14:32
    Last Modified: 06 Sep 2013 14:32
    URI: http://eprints.unsri.ac.id/id/eprint/2612

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