METHOD FOR PROTECTION OF PREPARATORY WORKING

A method for protection of development working includes arrangement of a protective-insulating zone, contoured with a breaker support, along the working, at the boundary with worked out space of the longwall,. The protective-insulating zone is arranged in two steps. At the first step the zone is for...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KURNOSOV SERHII ANATOLIIOVYCH, BULAT ANATOLII FEDOROVYCH, VOZIANOV VIKTOR STEPANOVYCH, SMIRNOV ANDRII VIKTOROVYCH, ZADERII VOLODYMYR VASYLIOVYCH, TSIKRA OLEKSANDR ANATOLIIOVYCH, AVERKIN DMYTRO IVANOVYCH
Format:	Patent
Sprache:	eng ; rus ; ukr
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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