Title:
GROUND DEFORMATION PREVENTION METHOD
Document Type and Number:
Japanese Patent JP2009243222
Kind Code:
A
Abstract:
To provide a ground deformation prevention method which prevents the occurrence of ground deformation in an earth fill section, when a shield machine advances into natural ground with small earth covering thickness or when the earth covering thickness becomes smaller toward the ground from the inside of the natural ground.
Cutter heads 10 of upper and lower cutter portions 2 and 3 are rotatively driven, and a lubricant 29 is injected between the shield machine 1 and the natural ground 13.
Inventors:
KANAI MAKOTO
MIKI KEIZO
TSUCHIYA KOSABURO
YOKOMIZO FUMIYUKI
FUKUMOTO KATSUJI
OTA MASASHI
NOMURA KAZUNARI
IZAWA MASAYOSHI
HINO YOSHIJI
MIKI KEIZO
TSUCHIYA KOSABURO
YOKOMIZO FUMIYUKI
FUKUMOTO KATSUJI
OTA MASASHI
NOMURA KAZUNARI
IZAWA MASAYOSHI
HINO YOSHIJI
Application Number:
JP2008093222A
Publication Date:
October 22, 2009
Filing Date:
March 31, 2008
Export Citation:
Assignee:
OHBAYASHI CORP
International Classes:
E21D9/06; E21D9/087
Domestic Patent References:
| JP2006046061A | 2006-02-16 | |||
| JP2006316494A | 2006-11-24 | |||
| JPS58172590U | 1983-11-18 | |||
| JP2007217926A | 2007-08-30 | |||
| JP2004316115A | 2004-11-11 | |||
| JP2006207141A | 2006-08-10 | |||
| JP2005030069A | 2005-02-03 | |||
| JP2007009566A | 2007-01-18 | |||
| JP2006016962A | 2006-01-19 |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation
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