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Documents 87389303 Hoek E e Brown E T 1998 Practical Estimates of Rock Mass Strength

Int. J. Rock Mech. Min. Sci. Pergamon PII: S0148-9062(97)00305-7 Vol. 34, No. 8, pp. 1165-I186, 1997 © 1998 Elsevier Science Ltd. All fights reserved Printed in Great Britain…

Documents Planet Earth and Beyond: Sedimentary Rock NATURAL SCIENCES GRADE 5.

Slide 1 Slide 2 Planet Earth and Beyond: Sedimentary Rock NATURAL SCIENCES GRADE 5 Slide 3 Slide 4  At first, mountains are tall and rough  Later, they are much more…