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008170725s1967    oncabd  ob   f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn---
0861 |aM38-8/28E-PDF|zM38-8/28
1001 |aPatching, T. H.|q(Thomas H.)
24510|aOccurrence, research and combating sudden outbursts of coal and gas in Canada |h[electronic resource] / |cT.H. Patching, University of Alberta ; J.C. Botham, Fuels and Mining Practice Division.
260 |aOttawa : |bQueen's Printer, |c1967.
300 |a30 p. : |bcharts, ill., map
4901 |aReprint series ; |vRS 28
500 |aIssued also in French under title: Occurrence, étude et côntrole des dégagements instantanés de charbon et gaz au Canada.
500 |aCover title.
500 |a"Reprinted from International Conference on Problems of Sudden Outbursts of Gas and Rock, Leipzig, October 1966."
500 |aHistorical publication digitized from print 2017 [by Natural Resources Canada].
504 |aIncludes bibliographical references (p. 19).
520 |a"In Canada sudden outbursts have occurred only in coal mines. Because outbursts of potash and gas do occur in other countries, and because we are currently opening several new potash mines, we have an interest in their mode of occurrence in saline rocks. However, all of our experiences and studies regarding outbursts have been concerned with those of coal and gas. […] our studies have shown the influence of stress, coal strength and deformation, gas content, and permeability on outburst occurrences. At present the only effective control measure that is applicable in Canadian conditions is shock blasting, and the application of mechanization in outburst-prone seams is restricted by our inability to predict or eliminate these curious and hazardous phenomena"--p. 1, 18.
69207|2gccst|aMining industry
69207|2gccst|aCoal
69207|2gccst|aExplosions
7001 |aBotham, J. C.
7101 |aCanada. |bNatural Resources Canada.
7101 |aCanada. |bDepartment of Energy, Mines and Resources.
7101 |aCanada. |bMines Branch.
77508|tOccurrence, étude et côntrole des dégagements instantanés de charbon et gaz au Canada |w(CaOODSP)9.840294
830#0|aReprint series - Dept. of Energy, Mines and Resources, Mines Branch ;|vRS 28|w(CaOODSP)9.834843
85640|qPDF|s4.60 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-28-eng.pdf