Method of building a tunnel

The invention provides a method of building a tunnel comprising an arched structure (1). The method includes the step of driving elongate beams (2) substantially horizontally into the ground in a side-by-side relationship so as to create an arch-shaped structure of beams. The beams (2) are placed si...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SPOELSTRA, HENDRIK, JAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHAFTS TUNNELS
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