FIELD: mining, particularly permafrost rock thawing for permafrost gravel deposit mining.
SUBSTANCE: method involves removing land cover from permafrost zone to be thawed; forming supply, drain and irrigational ditches; supplying water heated up to +50 ÷ +60°C into supply and irrigational ditches. Water is heated by solar energy accumulation in salt solar water heaters installed on supply and irrigational ditch bottoms.
EFFECT: increased speed and efficiency of permafrost rock thawing.
3 cl, 3 dwg
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