Method for building high roller compaction water-permeable tailing dam by rock dumping
A technology for tailings dams and rock drainage, applied in the field of tailings ponds, can solve the problems of extending the service life, insufficient volume of the dump site, and increasing the elevation of the tailings dam crest, so as to extend the service life, reduce the area of newly acquired land, The effect of reducing land occupation
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[0052] Take the concentrator of an iron mine as an example:
[0053] The height of the permeable tailings dam is 144 meters.
[0054] The parameter cohesion is 5MPa.
[0055] The said parameter internal friction angle is 36°.
[0056] The dry bulk density is 2.2g / cm 3 .
[0057] The invention effectively combines the mine dump and the tailings pool of the ore dressing plant, which can improve the utilization rate of the existing land in the mine, further increase the volume of the mine dump, solve the problem of insufficient volume of the dump in the long-term mining of iron mines, and reduce The newly acquired land area of the dump site can also increase the volume of the tailings pond and prolong the service life of the tailings pond. Its economic benefits: Taking the tailings dam of a concentrator in an iron mine as an example, the present value of economic benefits of the project during the entire calculation period is 4,941.56 million yuan, and the annual average pr...
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