COMBINATION TUBBING FOR TUNNEL LINING AND METHOD OF ITS PRODUCTION

FIELD: tunneling technology. SUBSTANCE: this relates to building of underground structures in watered ground and it is aimed at increasing load-bearing capacity and waterproofness of tunnel lining. Ribs at places of installing bolts are made double-layer, they are steel perforated strips welded with...

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Hauptverfasser:	JATSKOV BORIS IVANOVICH, ZHABREV VALENTIN ALEKSANDROVICH, SIL'VESTROV SERGEJ NIKOLAEVICH, OBOLENTSEV FEDOR DMITRIEVICH, KRYLOV VADIM SERGEEVICH, FILIPPOV VLADIMIR NIKOLAEVICH, KOSHELEV JURIJ ANATOL'EVICH, VAGIN VIKTOR VASIL'EVICH, SALAN ALEKSANDR IVANOVICH, SOBOLEV ANATOLIJ NIKOLAEVICH
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GALLERIES HYDRAULIC ENGINEERING LARGE UNDERGROUND CHAMBERS MINING PERFORMING OPERATIONS POWDER METALLURGY SHAFTS SOIL SHIFTING TRANSPORTING TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES
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