00000nam 2200000za 4500 9.840162 CaOODSP 20221107151756 cr ||||||||||| 170721s1966 onc ob f000 0 eng d CaOODSP eng n-cn--- M38-8/16E-PDF M38-8/16 Coates, D. F., 1923- Classification of rocks for rock mechanics [electronic resource] / D.F. Coates, Fuels and Mining Practice Division. Ottawa : Queen's Printer, 1966. p. 421-429 Reprint series ; RS 16 Cover title. "Reprinted from Rock Mechanics and Mining Sciences, Vol. 1, pp. 421-429, 1964." Historical publication digitized from print 2017 [by Natural Resources Canada]. Includes bibliographical references. "In the field of rock mechanics efficient communication between the laboratory and the field engineers, operators and contractors is important. For example, a rock may be described as a Cretaceous shale with quartz and pyrite, etc. However, some of the principal factors of practical interest would be: (a) is it jointed, badly fractured, distinctly layered or massive; (b) does it fail in a brittle or plastic manner; (c) is it viscous before failure; (d) can the information be interpolated between boreholes, etc.? Hence it is important that the significant properties of both the substance and the mass be recognized and the appropriate information obtained so that an initial appraisal can be made of any potential problems. Classification can be on the basis of natural, inherent characteristics or on the basis of purpose. The classification of rocks for rock mechanics problems should be functional, and the words used for communication between groups should be defined, widely recognised and related to the use of the information"--Introd., p. 421. gccst Rocks gccst Classification gccst Physics Canada. Natural Resources Canada. Canada. Department of Energy, Mines and Resources. Canada. Mines Branch. Reprint series - Dept. of Energy, Mines and Resources, Mines Branch ; RS 16 (CaOODSP)9.834843 PDF 1.95 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-16-eng.pdf 300095