Explain the objective of rock mass classification schemes, RMR and Q, why RQD is important to such
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Explain the objective of rock mass classification schemes, RMR and Q, why RQD is important to such schemes, what the main components are and what the main differences are. Also explain the differences in support strategy concerning fixed steel sets and yieldable arches.
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a Objective is primarily to determine and quantity need for tunnel sup...View the full answer
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