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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Hauptverfasser:	OKUYAMA, SHIGEAKI, MUKUNO, KATSUHIKO, HATTORI, MASAYA, TSUJIMOTO, KAZUNORI, YAMADA, YUKISHIGE, NAKAGAWA, MASAO, KABEUCHI, TERUO, TOGAWA, TAKASHI, SUGIYAMA, SHIRO
Format:	Patent
Sprache:	ger
Schlagworte:	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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creator	OKUYAMA, SHIGEAKI MUKUNO, KATSUHIKO HATTORI, MASAYA TSUJIMOTO, KAZUNORI YAMADA, YUKISHIGE NAKAGAWA, MASAO KABEUCHI, TERUO TOGAWA, TAKASHI SUGIYAMA, SHIRO
description	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.
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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. 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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
title	Untergrund-Bohrverfahren
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