000	00000nam 2200000zi 4500
001	9.869978
003	CaOODSP
005	20221107163010
006	m     o  d f
007	cr nn|||||||||
008	190315t19701970oncad   obt  f000 0 eng d
040	|aCaOODSP|beng|erda|cCaOODSP
041	|aeng|bfre
043	|an-cn---
086	1 |aM38-1/228-1970E-PDF|zM38-1/228
100	1 |aBarron, K., |eauthor.
245	10|aArtificial support of rock slopes / |cK. Barron, D.F. Coates and M. Gyenge, Mining Research Centre.
264	1|aOttawa : |bDepartment of Energy, Mines and Resources, Mines Branch, |cJuly 1970.
264	4|c©1970
300	|a1 online resource (xi, 145 pages) : |billustrations, charts.
336	|atext|btxt|2rdacontent
337	|acomputer|bc|2rdamedia
338	|aonline resource|bcr|2rdacarrier
490	1 |aResearch report ; |vR 228
500	|aCover title.
500	|aDigitized edition from print [produced by Natural Resources Canada].
500	|a"July 1970."
504	|aIncludes bibliographical references (page 102).
520	3 |a"Part I of this research report gives some simple analyses and establishes some guidelines for designing support for hard rock slopes. Part II describes the installation of a trial support system and gives a breakdown of construction costs. Part III considers the design and costing of support systems for some hypothetical rock slopes. It is shown that the potential profits per linear foot of pit wall, obtained by using artificial supports to safely increase the slope angle, may be optimized"--Abstract, page iii.
546	|aIncludes foreword and abstract in French.
693	4|aRock slopes
700	1 |aCoates, D. F., |d1923- |eauthor.
700	1 |aGyenge, M., |eauthor.
710	1 |aCanada. |bDepartment of Energy, Mines and Resources.
710	1 |aCanada. |bMines Branch.
710	1 |aCanada. |bMining Research Centre.
830	#0|aResearch report (Canada. Mines Branch)|vR 228.|w(CaOODSP)9.855660
856	40|qPDF|s7.62 MB|uhttps://publications.gc.ca/collections/collection_2019/rncan-nrcan/m38-1/M38-1-228-1970-eng.pdf