Inner supporting device of heavy caliber non-reinforcing-rib thin-wall steel pipe

The utility model discloses an inner supporting device of a heavy caliber non-reinforcing-rib thin-wall steel pipe. The structure of the inner supporting device of the heavy caliber non-reinforcing-rib thin-wall steel pipe is mainly formed by at least two pieces of arc U-steel, U-steel end plates, b...

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Hauptverfasser:	ZHOU XIMIN, WANG YONGPING, HU CHENGJUN, AN HUI, HAN SHUNBAO, LIU XUANJIN, SUN ZHICHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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creator	ZHOU XIMIN WANG YONGPING HU CHENGJUN AN HUI HAN SHUNBAO LIU XUANJIN SUN ZHICHENG
description	The utility model discloses an inner supporting device of a heavy caliber non-reinforcing-rib thin-wall steel pipe. The structure of the inner supporting device of the heavy caliber non-reinforcing-rib thin-wall steel pipe is mainly formed by at least two pieces of arc U-steel, U-steel end plates, bolts and adjusting cushion plates. The U-steel end plates are welded at two ends of the arc U-steel, bolt holes are formed in the side edges of the U-steel end plates, the arc U-steel is radially attached to the inner wall of a thin-wall steel pipe, adjacent arc U-steel is connected into a ring through the bolt holes of the U-steel end plates by using the bolts, and the adjusting cushion plates are inserted between adjacent U-steel end plates. The inner supporting device of the heavy caliber non-reinforcing-rib thin-wall steel pipe can be rapidly attached to the inner wall of the thin-wall steel pipe, and facilitates outdoor construction. The inner supporting device of the heavy caliber non-reinforcing-rib thin-wal
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The structure of the inner supporting device of the heavy caliber non-reinforcing-rib thin-wall steel pipe is mainly formed by at least two pieces of arc U-steel, U-steel end plates, bolts and adjusting cushion plates. The U-steel end plates are welded at two ends of the arc U-steel, bolt holes are formed in the side edges of the U-steel end plates, the arc U-steel is radially attached to the inner wall of a thin-wall steel pipe, adjacent arc U-steel is connected into a ring through the bolt holes of the U-steel end plates by using the bolts, and the adjusting cushion plates are inserted between adjacent U-steel end plates. The inner supporting device of the heavy caliber non-reinforcing-rib thin-wall steel pipe can be rapidly attached to the inner wall of the thin-wall steel pipe, and facilitates outdoor construction. 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subjects	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
title	Inner supporting device of heavy caliber non-reinforcing-rib thin-wall steel pipe
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