00000nam 2200000zi 4500 9.869944 CaOODSP 20221107163004 m o d f cr nn||||||||| 190314t19701970oncd obt f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- M38-1/224-1970E-PDF M38-1/224 Coates, D. F., 1923- author. Development of design specifications for rock bolting from research in Canadian mines / D.F. Coates and T.S. Cochrane, Mining Research Centre. Ottawa : Department of Energy, Mines and Resources, Mines Branch, July 1970. ©1970 1 online resource (vii, 29 pages) : figures, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Research report ; R 224 Cover title. Digitized edition from print [produced by Natural Resources Canada]. "July 1970." Includes bibliographical references (pages 22-24). "Over the years a considerable amount of work has been done by the Mines Branch of the Government of Canada on the subject of rock bolting. Most of the work has been done in the mines; some studies have been conducted in the laboratory. A selection of some of the significant findings has been made for this report"--Summary, page i. Includes summary in French. Rock bolting Cochrane, T. S., author. Canada. Department of Energy, Mines and Resources. Canada. Mines Branch. Canada. Mining Research Centre. Research report (Canada. Mines Branch) R 224. (CaOODSP)9.855660 PDF 748 KB https://publications.gc.ca/collections/collection_2019/rncan-nrcan/m38-1/M38-1-224-1970-eng.pdf