METHOD FOR MAKING FACE SELF-SUSTAINABLE IN TUNNEL EXCAVATED IN COLLAPSIBLE MATURAL GROUND

PURPOSE:To prevent clogging in a circuit of pressure conveyance by a method wherein specific gravities of fibers and conveyance fluid are made equal when constructing a number of horizontal piles of fiber-reinforced soil mortar to the surface of a face, and separation and sink-and-float of the fiber...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HIGUCHI YASUO, SHIRAISHI YASUNOBU, KAJI SHIGEHITO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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