Untergrund-Bohrverfahren

An underground propelling method uses a propellant apparatus including a propellant head (1) having a pressure receiving face portion inclined relative to an axis of the head and a plurality of propellant cylinders (2) flexibly and pivotally connected in series to a rear end of the propellant head....

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Main Authors OKUYAMA, SHIGEAKI, MUKUNO, KATSUHIKO, HATTORI, MASAYA, TSUJIMOTO, KAZUNORI, YAMADA, YUKISHIGE, NAKAGAWA, MASAO, KABEUCHI, TERUO, TOGAWA, TAKASHI, SUGIYAMA, SHIRO
Format Patent
LanguageGerman
Published 08.07.2004
Edition7
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:An underground propelling method uses a propellant apparatus including a propellant head (1) having a pressure receiving face portion inclined relative to an axis of the head and a plurality of propellant cylinders (2) flexibly and pivotally connected in series to a rear end of the propellant head. The propellant apparatus is propelled under the ground by applying a thrust to the propellant apparatus from behind. Each propellant cylinder of the apparatus is pivotal about a single pivot axis (x) thereof alone. The apparatus is propelled with the pressure receiving face portion thereof being oriented along a pivotal direction of the propellant cylinder about the pivot axis.
Bibliography:Application Number: DE19976025053T