An isotopic study of the role of carbon dioxide in outbursts in coal mines.
An isotopic study of the role of carbon dioxide in outbursts in coal mines.
复制标题
二氧化碳在煤矿突出中的作用的同位素研究。
DOI：
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复制
发表时间：
1980
期刊：
影响因子：
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通讯作者：
K. Gould
中科院分区：
文献类型：
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作者：
J. Smith;K. Gould
The occurrence of instantaneous outbursting in the Bulli coal seam at the West Cliff Colliery, Appin, NSW can be correlated directly with an increase in concentration (0.5 to 75%) and a related decrease in the /sup 13/C content ..delta.. of the CO/sub 2/ in the seam gas. Two sources of CO/sub 2/ are required. The greater incidence of outbursting in CO/sub 2/-rich zones is explained by the conversion to bicarbonate of cleat and fracture filling calcite deep within the coal and the transport of this bicarbonate in water to mine openings. The weakening of the resistance of the coal to shear by this removal of carbonate is an additional factor to be considered in assessing outbursting situations.
