Top beam device with energy absorption and scour prevention functions

The top beam device with the energy absorption and anti-impact functions comprises a top beam and a top beam cover plate, a limiting ring is arranged on the peripheral side of the top of the top beam, a plurality of rubber metal springs are arranged on the top beam, the rubber metal springs are loca...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DU SHANGYU, PANG XIAOLIANG, MA ZIYAN, YUAN CHAOYU, XU YAJUN, MA DUANZHI, SHI HONGYU, LIU MINGCHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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