Title:
シールド坑内の枕木固定構造
Document Type and Number:
Japanese Patent JP6751988
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent sleepers which are installed in segments inside a shield pit from rolling.SOLUTION: A structure of fixing sleepers inside a shield pit according to the present invention is constituted of: a shield pit T that is composed of a plurality of annular segments SG which is constructed on the inner circumference of the drilling pit by a shield machine and mutually fastened; a plurality of sleepers 15 installed in the longitudinal direction of the shield pit T and formed so as to cross over an arcuate inner circumferential surface of the segments SG; each of rails R1 which is laid in the longitudinal direction of the shield pit T and eccentrically to the sleepers 15 and on which a transport truck for transporting constructional elements including segment constituting members runs; and each movement blocking member A that is composed of a protruding member 20 which is fitted in a grout hole GH of the rails laying side formed on each of the segments SG and which protrudes from an inner circumference of the segments SG and a plate member 21 interposed between the end portion of the sleepers 15 at the protruding member 20 side and the protruding member 20, and that prevents sleepers 15 from moving to the peripheral direction of segments SG.SELECTED DRAWING: Figure 4
Inventors:
Makoto Mitsuyasu
Yoshinori Yoshida
Hiroaki Hata
Kitamoto
Yoshinori Yoshida
Hiroaki Hata
Kitamoto
Application Number:
JP2017058057A
Publication Date:
September 09, 2020
Filing Date:
March 23, 2017
Export Citation:
Assignee:
Okumura Gumi Co., Ltd.
International Classes:
E21F13/02; E01B23/12; E21D11/40
Domestic Patent References:
| JP2001329800A | ||||
| JP2014141799A | ||||
| JP2001107700A | ||||
| JP11153000A | ||||
| JP2018044309A |
Foreign References:
| WO1985001081A1 |
Attorney, Agent or Firm:
Toshiro Ohata