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NTIS 바로가기화약·발파 = Explosives & blasting, v.24 no.1, 2006년, pp.21 - 28
Rock mass classification systems such as RMR and Q system have been widely served as a simple empirical approach for the design of various rock mass structures in the stage of site survey as well as under the construction. For the RQD determination, the boring is partially carried out and what is mo...
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