THE FRONT STRUCTURE FOR NON-OPEN CUT TYPE TUNNEL PRESSING

The present invention relates to a front end structure for excavating a trenchless tunnel. The front end structure is positioned on a front side of a tunnel structure and composed of an inner front end unit and an outer front end unit. The front end structure guides the tunnel structure to be press-...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CHOI, HEE SUK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GALLERIES HYDRAULIC ENGINEERING LARGE UNDERGROUND CHAMBERS MINING SHAFTS SOIL SHIFTING TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES
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