FIELD: mining engineering.
SUBSTANCE: method involving entry development, erection of concrete body bulkhead, which walls are in contact with host rocks. The hydraulic isolation of mine working is carried out by grouting hosting water-soluble salt rocks and the bulkhead concrete body through rows of well fans which are drilled from a specially developed working.
EFFECT: improved waterproofing of mine workings.
7 cl, 4 dwg
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Authors
Dates
2017-11-03—Published
2016-07-26—Filed