Title:
INSTALLATION METHOD OF ANCHOR DEVICE
Document Type and Number:
Japanese Patent JP2017222989
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an installation method of an anchor device through a simple work step using one unit of excavation device.SOLUTION: A first installation method uses a bit system 9, and performs the following steps sequentially: a preparation step (S1) in which an outer bit 200 is fitted on an inner bit 100; an excavation step (S2) in which a casing 10 is pressed into an excavation hole 91 while forming the excavation hole 91; a lifting step (S3) in which an excavation hammer 300 is lifted to form a lower space 93; a holding step (S4) in which the casing 10 is held in a way that disables falling; a separation step (S5) in which the outer bit 200 is separated from the inner bit 100; a recovery step (S6) in which the inner bit 100 is pulled out from the casing 10; a filling step (S7) in which mortar 30 is filled in the lower space 93; and an installation step (S8) in which a part of a tension resisting body 20 is penetrated into the mortar 30 and a stopper 50 is pressed against a casing shoe 40.SELECTED DRAWING: Figure 7
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Inventors:
IRIE KENJI
Application Number:
JP2016117228A
Publication Date:
December 21, 2017
Filing Date:
June 13, 2016
Export Citation:
Assignee:
HOKKAIDO GASON KK
International Classes:
E02D5/80; E02D17/18; E21B10/00
Attorney, Agent or Firm:
Shiroyuki Hori
Yukihiko Maejima
Akira Hasegawa
Daiyu Murakami
Taku Ogawa
Yukihiko Maejima
Akira Hasegawa
Daiyu Murakami
Taku Ogawa