Title:
THREE-THROW TYPE SHIELD MACHINE
Document Type and Number:
Japanese Patent JP3785701
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce work from aboveground, and relieve a traffic snarl and a trouble to neighboring residents by constituting so that a virtual line connecting the respective axes of shielding machines juxtaposed in a three-throw type can be bent in a gentle angle shape.
SOLUTION: A skin plate of an intermediate shield machine is composed of a slidingly movable skin plate 3a and a holding skin plate 3b. The slidingly movable skin plate 3a is integrally formed with a skin plate 11 of a shield machine 1, and the holding skin plate 3b is integrally formed with a skin plate 21 of a shield machine 2. The slidingly movable skin plate 3a is slidably housed in the circumferential direction in the holding skin plate 3b, and a partition wall 13 is fitted to a notch part 24 of a partition wall 23, and a three-throw type shield machine is constituted. When a tunnel of only a roadway part is constructed, excavation is propelled in a condition where a virtual line of the axes of the respective shield machines becomes a gently angle shape. In the case of a tunnel of a station part, excavation is propelled so that a line connecting the axes is positioned on a straight line.
Inventors:
Kenichi Kaneko
Prosperity
Tomotaka Ozeki
Isao Hashimoto
Shigeo Fujii
Prosperity
Tomotaka Ozeki
Isao Hashimoto
Shigeo Fujii
Application Number:
JP27420296A
Publication Date:
June 14, 2006
Filing Date:
September 25, 1996
Export Citation:
Assignee:
Ishikawajima Harima Heavy Industries Co., Ltd.
International Classes:
E21D9/06; E21D9/087; E21D9/08; (IPC1-7): E21D9/08; E21D9/06
Domestic Patent References:
| JP62099597A | ||||
| JP4093493A | ||||
| JP593495A |
Attorney, Agent or Firm:
Sakuo Yamaguchi
Yuichi Kasai
Yuichi Kasai