Title:
SHIELD CONSTRUCTION METHOD
Document Type and Number:
Japanese Patent JP3842153
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely and inexpensively suppress collapse of natural ground and ground subsidence, which may occur in the approximately linear formation of a tunnel, a drift and the like.
SOLUTION: In a process in which a hole is excavated in an approximately linear manner by using a shield machine 10, a filler 3, in which clay and specific gravity are adjusted, it injected from the shield machine 10 into an outbreak part 2 between the shield machine 10 and the hole. In this case, the volume of the outbreak part 2 is calculated, for example, from an outer shape D of the shield machine 10, a length L thereof, a pitching angle θ thereof, a yawing angle thereof and other driving conditions, so that an injection speed of the filler 3 can be determined according to the volume of the outbreak part 2. Furthermore, for example, the shield machine 10 is precedently provided with a plurality of pressure gauges 14; and the injection speed of the filler 3 is determined according to filling pressure of the filler 3, which is detected by the pressure gauges 14.
Inventors:
Ikuo Oe
Kenji Sannohe
Hisashi Nomoto
Kenji Sannohe
Hisashi Nomoto
Application Number:
JP2002072000A
Publication Date:
November 08, 2006
Filing Date:
March 15, 2002
Export Citation:
Assignee:
Nishimatsu Construction Co., Ltd.
International Classes:
E21D11/00; (IPC1-7): E21D11/00
Domestic Patent References:
| JP2000220384A |
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune
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