Title:
INSERTION METHOD AND DEVICE FOR SHAFT UNDERWATER EXCAVATION MACHINE
Document Type and Number:
Japanese Patent JP2592391
Kind Code:
B2
Abstract:
PURPOSE: To make it possible to insert an excavation machine into an inclined shaft with ease and safety by inserting and holding a shaft underwater excavation machine into a holding pipe in a vertical state and then pulling up the holding pipe to a leader and tilting the holding pipe and connecting the pipe to the inclined shaft.
CONSTITUTION: A shaft underwater excavation machine 5 is inserted an held into a holding pipe 1 kept in a vertical state from the water. A guide fitting 3a of the holding pipe 1 is set to a guide 16 of a leader 15 of a pile drive barge 14 and the holding pipe is pulled up to the leader 15. Then, the leader 15 is arranged to hold the holding pipe 1 with the guide fitting 3a. After the leader 15 is tilted in that state, the holding pipe 1 is brought right above an inclined shaft 21. After the tilted holding pipe 1 is connected to the inclined shaft 21, a shaft underwater excavation machine 5 is inserted into the inclined shaft 21 with the holding pipe 1 as a guide.
Inventors:
KISHI MINORU
AIKAWA MICHITERU
MORYAMA HIDEYUKI
SUGIHARA SHIGEKI
ITO HIROYUKI
YOSHIDA TOSHIHIRO
AIKAWA MICHITERU
MORYAMA HIDEYUKI
SUGIHARA SHIGEKI
ITO HIROYUKI
YOSHIDA TOSHIHIRO
Application Number:
JP9374793A
Publication Date:
March 19, 1997
Filing Date:
March 29, 1993
Export Citation:
Assignee:
TOYO KENSETSU KK
MITSUI MIIKE SEISAKUSHO KK
MITSUI MIIKE SEISAKUSHO KK
International Classes:
E21B7/12; (IPC1-7): E21B7/12
Domestic Patent References:
| JP5425881B2 | ||||
| JP6315431B2 |
Attorney, Agent or Firm:
Tetsuro Abe