Title:
GUIDE PIPE FOR CURVE JACKING METHOD
Document Type and Number:
Japanese Patent JP2878180
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To measure the accurate position of a drilling machine, even when an embedded pipe has insufficient strength, and place the embedded pipe with long-distance curve advancing on a crossing or snaking road in a technique of advancing a small-bore drilling machine with an initially pushing jack.
SOLUTION: As a guide pipe for a curve jacking method in two curve advancing steps of placing the guide pipe and placing an embedded pipe, a guide pipe P1 is formed with a front pipe 1 and a rear pipe 2 and a broken portion R provided at the middle, the front pipe 1 and the rear pipe 2 being connected together via an expandable jack 9 and the broken portion R being freely bent. An outer periphery seal portion T is provided on the periphery to prevent the entry of muddy water therein and a rail 19 is provided in the guide pipe P1 in the axial direction for a measuring robot to run. The measuring robot runs along the rail 19 in the axial direction of the guide pipe P1, so that a signal from the measuring robot is used to perform curve advancing while measuring the accurate position of a drilling machine.
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Inventors:
NOZAWA TAMOTSU
KIMURA NOBUHIRO
NOAMI HAYAO
TAKEGAKI YOSHIKATSU
SATO TSUTOMU
KATO KAZUNORI
YAMANA MAMORU
IGARASHI KAZUYUKI
KAWASHIMA SHINJI
TAKEUCHI KATSUNOBU
KATANO KOJI
TAKAHASHI HIROKI
MORIOKA KINYA
KIMURA NOBUHIRO
NOAMI HAYAO
TAKEGAKI YOSHIKATSU
SATO TSUTOMU
KATO KAZUNORI
YAMANA MAMORU
IGARASHI KAZUYUKI
KAWASHIMA SHINJI
TAKEUCHI KATSUNOBU
KATANO KOJI
TAKAHASHI HIROKI
MORIOKA KINYA
Application Number:
JP9530996A
Publication Date:
April 05, 1999
Filing Date:
April 17, 1996
Export Citation:
Assignee:
AOKI KENSETSU KK
ASANUMAGUMI KK
ARAIGUMI KK
OKUMURAGUMI DOBOKU KOGYO KK
KUBOTA KENSETSU KK
DAITO KOGYO KK
NANNO KENSETSU KK
FUKUDAGUMI KK
MATSUMURAGUMI KK
MAGARA KENSETSU KK
MABUCHI KENSETSU KK
MITSUB
ASANUMAGUMI KK
ARAIGUMI KK
OKUMURAGUMI DOBOKU KOGYO KK
KUBOTA KENSETSU KK
DAITO KOGYO KK
NANNO KENSETSU KK
FUKUDAGUMI KK
MATSUMURAGUMI KK
MAGARA KENSETSU KK
MABUCHI KENSETSU KK
MITSUB
International Classes:
E21D9/06; E21D9/093; (IPC1-7): E21D9/06
Domestic Patent References:
| JP552093A | ||||
| JP726885A | ||||
| JP58120995A | ||||
| JP579288A |
Attorney, Agent or Firm:
Yoshihiro Tsunoda (1 outside)
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