MECHANIZED PNEUMATIC SUPPORT

MECHANIZED PNEUMATIC SUPPORT

FIELD: mining, particularly for supporting roof in flat-lying or steep seam faces without people present in production face. ^ SUBSTANCE: support has a number of trays the first of which are rigidly connected to face beams and odd-numbered pneumocylinders. The second trays are connected to goaf beam...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OVCHARENKO D.G, BREGMAN M.L, SIDORENKO A.A, OVCHARENKO G.V
Format: Patent
Sprache:eng ; rus
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:FIELD: mining, particularly for supporting roof in flat-lying or steep seam faces without people present in production face. ^ SUBSTANCE: support has a number of trays the first of which are rigidly connected to face beams and odd-numbered pneumocylinders. The second trays are connected to goaf beams and even-numbered pneumocylinders. Sections of the support are provided with rests. The first rests are rigidly connected to above outer basic goaf beam in cross-section with odd-numbered and even-numbered pneumocylinders and at odd-numbered tray end from goaf side. The second rests are arranged above inner basic goaf beam of odd-numbered tray and between basic beams on even-numbered trays. Support section trays have different lengths and are arranged in staggered order. ^ EFFECT: increased operational reliability of the support in unstable wall rock. ^ 4 dwg