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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Geotechnical and geological engineering 15 (1997), S. 47-85 
    ISSN: 1573-1529
    Keywords: Numerical modelling ; mine design ; tabular stopes ; anisotropy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary This paper presents a rock mechanics design methodology applicable to steeply dipping orebodies typical of many underground hardrock mines. The first stage in the design process is the characterization of the rock mass using bothin situ and laboratory data. The effects of anisotropy on rock mass behaviour are discussed with reference to laboratory and field observations. The second stage involves the use of a number of selected numerical modelling techniques to investigate ground response in the near-field rock mass surrounding the mining excavations. This study shows that the use of several numerical methods in conjunction, allowing for the advantages of each method to be maximized, provides a more comprehensive analysis of the different facets of stope design. This approach differs from those in the literature which seek to compare the different numerical methods in order to select just one method best suited for a problem. The design methodology employed emphasizes the importance of developing an understanding of ground deformation mechanisms as opposed to predicting absolute behaviour.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-1944
    Keywords: ethical cognition ; principled score ; intervention ; longitudinal ; cross-sectional
    Source: Springer Online Journal Archives 1860-2000
    Topics: Philosophy , Economics
    Notes: Abstract In this study, we present evidence on the changes inethical cognition of business students over afour-year period. We use the Principled Score(P-score) of the Defining Issues Test to measure thischange. Specifically, we first compare the P-scores ofstudents at the entry to, halfway through, and shortlyafter graduation from a business school to analyze theeffect size of education on ethical cognition.Secondly, for a sample of students in an electivebusiness ethics course, we compare P-scores at thebeginning, and at the end of the semester to analyzethe effect size of specific intervention course onethical cognition. Prior studies in liberal arts fields have reportedhigh effect sizes from four-year college education onethical cognition, while a few studies have reportedonly moderate gains for business students. Consistentwith the liberal arts studies, our results indicatestatistically significant gains, and high effect sizesfor business students as well. Similarly, priorstudies have reported moderate gains in the P-scorefrom intervention courses in various fields. Ourresults indicate only low to moderate effect sizes forbusiness students. Importantly, while the gain waslow, and statistically insignificant for femalestudents, it was moderate, and highly significant formale students. Implications for education and researchare discussed.
    Type of Medium: Electronic Resource
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