Донбасский Государственный Технический Университет
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Drilling And Exploitation, And Mining Machines And Methods
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Abstract
A method for extraction of condition methane from worked-out space of worked-out faces includes drilling degassing wells in massif of roof, towards propagation of breakage face from the main preparatory workings, those are protected with coal pillars with large dimensions. Choice of parameters of wells and drilling those take place after termination of carrying out breakage works. The wells are drilled in clusters. Number of wells in each cluster is determined for specific conditions of development with the number of technogenic collectors placed at interval of unloading rocks of under-worked massif of the roof.
UAU201304234U2013-04-052013-04-05Method for extraction of conditioned methane from worked-out space of worked out faces
UA84056U
(en)
Rock blasting method, in mining for recoverable ore, which includes drilling blasting holes in a blasting zone, loading blasting holes with explosives and then igniting explosives in blasting holes in an individual drilling cycle.