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A Suggestion of In-situ Rock Mass Evaluation and Correlation between Rock Mass Classfication Methods  

Kim, Hong-Pyo (태조엔지니어링)
Chang, Ho-Min (조선대학교 에너지자원공학과)
Kang, Choo-Won (조선대학교 에너지자원공학과)
Ko, Chin-Surk (조선대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.28, no.2, 2010 , pp. 133-147 More about this Journal
Abstract
A Suggestion of In-situ Rock Mass Evaluation and Correlation between Rock Mass Classfication MethodsThe purpose of this study is to find out rock mass classification method which is practically applicable to a field and to consider a correlation between the new method and the old method. Rock mass is an aggregate of separated blocks. To express the aggregate, the properties of both intact rock and rock mass should be considered. In this study, therefore, parameters for rock mass description are classified into rock strength and rock structure. Indices for parameters evaluation are obtained from old method and the strength and structure property of rock is described by using those indices. Value of 25 is allocated to each parameter obtained. $RMR_{basic}$ =0.86(X=Method)+14.47 is derived between $RMR_{basic}$ and this study and $RMR^*$ = 0.87(X-Method)+9.20 is derived between revised RMR and this study. Coefficient of determination is $R^2$=0.841 and $R^2$=0.846 each.
Keywords
Rock mass classification; Correlation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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