MANUFACTURE OF RC SEGMENT

PURPOSE:To obtain a product having fine surface by a method wherein an air suction port is provided on the upper part of a tightly closed form to generate negative pressure in the interior thereof and highly flowable concrete is forced and loaded from below into the form and concrete pressure therei...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	UNO YOSHIKI, NISHIMOTO NORIO, SUGIMOTO YOSHIHITO, OKAMURA NAOTOSHI, IWATO MASAHIKO, HIRONAKA YOSHIAKI, ITO SHINICHIRO, SASAKI JUN
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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