Method of and apparatus for providing an underground tunnel

A technique for providing a continuous underground tunnel between first and second spaced-apart points and for installing new cable, pipe or conduit utilizes a boring device (14) including means (36) for boring through soil and a thrust conduit (16) which pushes the boring device (14) through the so...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	BAKER, GLEN, MERCER, JOHN E, FIKSE, JAMES ANTHONY, CHAU, ALBERT W
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRICITY FIXED CONSTRUCTIONS GALLERIES GENERATION INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES LARGE UNDERGROUND CHAMBERS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHAFTS TUNNELS
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