Title:
METHOD OF GROUND IMPROVEMENT CONSTRUCTION IN SHIELD EXCAVATION
Document Type and Number:
Japanese Patent JP2770112
Kind Code:
B2
Abstract:
PURPOSE: To conduct the ground improvement of the connecting section, etc., of a shielding machine properly and effectively, and to shorten the term of work.
CONSTITUTION: Curved pipes 14, in which a plurality of rubber nozzles 1, 1... are installed at regular intervals along the longitudinal directions of the pipes, are inserted and mounted to the side section of a shield tunnel 10 in an arcuate manner. An impregnator 3 with double packers connected by chains 25 so that the packers 4A, 4B can correspond to the bending of the curved pipes 14 mutually is inserted into the curved pipes 14, the inside of the ground is impregnated with a ground impregnating agent through the rubber nozzles 1 under the state, in which each of the double packers 4A, 4B is positioned while successively crossing the rubber nozzles 1, and the ground of the periphery of a widening section F is improved.
Inventors:
Taro Kasuya
Toshimasa Tanaka
Enomoto Minoru
Kazutaka Murakami
Chuetsu Ban
Fukaishi People
Noboru Mikami
Nobuyuki Fujisawa
Yuji Adachi
Toshimasa Tanaka
Enomoto Minoru
Kazutaka Murakami
Chuetsu Ban
Fukaishi People
Noboru Mikami
Nobuyuki Fujisawa
Yuji Adachi
Application Number:
JP15653593A
Publication Date:
June 25, 1998
Filing Date:
June 28, 1993
Export Citation:
Assignee:
Iron Construction Co., Ltd.
Seibu Construction Co., Ltd.
Tone Co., Ltd.
Seiken Co., Ltd.
Nittoku Construction Co., Ltd.
Light Industry Co., Ltd.
Japan Construction Mechanization Association
Seibu Construction Co., Ltd.
Tone Co., Ltd.
Seiken Co., Ltd.
Nittoku Construction Co., Ltd.
Light Industry Co., Ltd.
Japan Construction Mechanization Association
International Classes:
E21D9/04; E02D3/12; E21D9/06; (IPC1-7): E21D9/06; E02D3/12; E21D9/04
Domestic Patent References:
| JP4281991A | ||||
| JP4281990A | ||||
| JP6343235Y2 |
Attorney, Agent or Firm:
Yoshihisa Nagai