TUNNEL CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide a tunnel construction method which can suppress tunnel construction cost.SOLUTION: A tunnel construction method comprises the steps of: irradiating a first irradiation point (P) on a face plane by laser irradiation of a total station (20); bringing the tip of a rod (...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO TOMOHIDE, SUZUKI TOMOYUKI, UNEDA ATSUSHI, TOMITA SHOJI, FUKUYA YOSHINORI, KONDO KEIJI, HASHIMOTO HAJIME, HANADA NORIAKI, TANAKA MASAYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a tunnel construction method which can suppress tunnel construction cost.SOLUTION: A tunnel construction method comprises the steps of: irradiating a first irradiation point (P) on a face plane by laser irradiation of a total station (20); bringing the tip of a rod (13) of an attitude adjustable guide shell (11) into contact with the first irradiation point (P); irradiating a second irradiation point (Q) different from the first irradiation point (P) by the laser irradiation of the total station (20); adjusting the attitude of the guide shell (11) so that an irradiation point is formed on a target (15) provided on the rear end of the guide shell (11); and drilling a hole by the rod (13) of the attitude adjusted guide shell (11).