METHOD FOR INCREASING STABILITY OF PREPARATION WORKING

METHOD FOR INCREASING STABILITY OF PREPARATION WORKING

Method to increase stability of preparation working includes formation of a truss in the side wall of the working at the side of the coal massif, yielding barrier, working-out of the faces. Before working out the faces one forms a yielding barrier at the side of the massif and at the side of the fac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LOZOVSKYI SERHII PETROVYCH, TERESCHUK ROMAN MYKOLAIOVYCH, SHASHENKO OLEKSANDR MYKOLAIOVYCH
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
MINING OR QUARRYING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:Method to increase stability of preparation working includes formation of a truss in the side wall of the working at the side of the coal massif, yielding barrier, working-out of the faces. Before working out the faces one forms a yielding barrier at the side of the massif and at the side of the face through explosion of camouflet charges outside the zone of the support rock pressure, and after working out the face the truss is filled with the risen rocks of the base of the working that are risen; then one works out the next face.