Title:
NATURAL GROUND IMPROVEMENT-TYPE LOCK BOLT REINFORCEMENT METHOD
Document Type and Number:
Japanese Patent JP2017150263
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a composite natural ground improvement-type lock bolt reinforcement method that makes work properly executed in such a manner that anchorages in the tip of natural ground and a loose region are set different from each other, by one lock bolt.SOLUTION: In a natural ground improvement-type lock bolt reinforcement method, an expansion-type fabric packer and a pipe for material injection are mounted on the outside of a hollow bolt, and construction work is performed in such a manner that anchorages in the tip of natural ground and a loose region are set different from each other by one lock bolt.SELECTED DRAWING: Figure 1
Inventors:
SHIMAMOTO KEISUKE
MORISE TAKASHI
NOSHIRO KAZUE
ITO NAOKI
MATSUO TSUTOMU
OKABE TADASHI
MORISE TAKASHI
NOSHIRO KAZUE
ITO NAOKI
MATSUO TSUTOMU
OKABE TADASHI
Application Number:
JP2016035308A
Publication Date:
August 31, 2017
Filing Date:
February 26, 2016
Export Citation:
Assignee:
RAILWAY TECHNICAL RES INST
KFC LTD
KFC LTD
International Classes:
E21D20/00; E21D9/04
Domestic Patent References:
| JPH0776819A | 1995-03-20 | |||
| JP2010037743A | 2010-02-18 | |||
| JP2001207775A | 2001-08-03 | |||
| JP2002081052A | 2002-03-22 | |||
| JPS56150299A | 1981-11-20 | |||
| JPH01100046A | 1989-04-18 | |||
| JP2012077509A | 2012-04-19 | |||
| JP2001329779A | 2001-11-30 |
Foreign References:
| US20110299939A1 | 2011-12-08 |
Attorney, Agent or Firm:
Mamoru Shimizu
Makoto Kawai
Makoto Kawai
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