Частное Акционерное Общество "Донецксталь-Металлургический Завод"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Частное Акционерное Общество "Донецксталь-Металлургический Завод"filedCriticalЧастное Акционерное Общество "Донецксталь-Металлургический Завод"
Priority to UAA201207397ApriorityCriticalpatent/UA100961C2/en
Publication of UA100961C2publicationCriticalpatent/UA100961C2/en
A method for anchoring of mine working includes evaluation of rigidity of rocks by the value of rigidity criterion for those, determination of zones of beyond-limit state of destructed rocks round the working and depth of those, and separation of those to elementary sections, drilling holes from rock outcrops of the working, installation of rockbolts to bore holes, fixation of anchors out of the boundary of out-of-limit condition of rocks, formation of preliminary tension in rockbolts. The method provides maximum stability of destroyed rocks round the working due to controlled preliminary tension of anchors and optimal patterns of installation of those.
UAA201207397A2012-06-182012-06-18Method for anchoring of mine working
UA100961C2
(en)
Block sinking mining method comprising, digging undercut tunnels, drilling undercut blast holes through the undercut tunnel roofs and placing and detonating explosive charges in those holes to fly rocks over the undercut tunnels, digging Tunnels at the extraction level at an extraction level below the undercut level.