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Geotechnical and Geological Engineering

Erschienen in:

01.01.2011 | Original paper

Effects of Testing Conditions on Intact Rock Strength and Variability

verfasst von: Widjojo A. Prakoso, Fred H. Kulhawy

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 1/2011

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Abstract

The strength of intact rock is a fundamental and integral part of many aspects of engineering and geologic practice. It is necessary to understand how testing conditions influence this strength and its variability, especially for use in reliability-based design. In this study, the effect of sample diameter and moisture content on the strength and its variability was examined in detail. Correlations are given for assessing the effect of sample diameter on the laboratory uniaxial compressive strength (q_u), Brazilian indirect tensile strength (q_t-Brazilian), and point load strength (I_s), and the associated direct correlations among these tests. Correlations also are given for assessing the effect of sample moisture content on q_u, q_t-Brazilian, and I_s. The statistics of data scatter suggest these correlations can introduce large uncertainties. The effect of sample diameter and moisture content on the coefficients of variation was examined subsequently, and it was found to be relatively minor.

Vorheriger Artikel The Effects of Fines on the Behaviour of a Sand Mixture

Nächster Artikel Simple Shear Behavior of Calcareous and Quartz Sands

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Titel: Effects of Testing Conditions on Intact Rock Strength and Variability
verfasst von: Widjojo A. Prakoso
Fred H. Kulhawy
Publikationsdatum: 01.01.2011
Verlag: Springer Netherlands
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 1/2011
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-010-9356-y

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