STALL ROOF SUPPORTING METHOD

FIELD: mining industry, particularly for supporting stall roofs. ^ SUBSTANCE: method involves drilling boreholes in roof and extending boreholes to perform breaking; pouring fixing mix into boreholes; loading explosive charges and blasting thereof, wherein anchor is introduced in bottomhole section...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DJUDIN JU.K, FURSOV E.G, DENISOV M.EH, SADYKOV G.R
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	FIELD: mining industry, particularly for supporting stall roofs. ^ SUBSTANCE: method involves drilling boreholes in roof and extending boreholes to perform breaking; pouring fixing mix into boreholes; loading explosive charges and blasting thereof, wherein anchor is introduced in bottomhole section and wooden self-loosened plug is placed between explosive charge and the anchor. ^ EFFECT: increased supporting reliability and operating safety. ^ 4 dwg