Title:
METHOD AND FACILITY FOR TRANSPORTING EARTH EXCAVATED IN SHAFT
Document Type and Number:
Japanese Patent JP3700110
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently convey earth excavated in a shaft, such as earth excavated in a deep foundation and earth excavated for an increase in width, which is produced from sites other than a working face.
SOLUTION: A muddy water fluid transport facility for use in muddy water type shield construction is utilized to fluid transport not only excavated earth from a working face but also earth excavated in a shaft. For this, the earth excavated in the shaft is mixed with muddy water, and the mixed muddy water is forcibly fed through a mud discharge line 3. A force-feeding device 1 is provided therefor. The force-feeding device 1 includes a mixing tank 6 for mixing and agitating together the earth excavated in the shaft and the muddy water fed from a mud feed line 4, and a force-feed pump 7 for forcibly feeding the mixed muddy water to the mud discharge line 3. The earth excavated in the shaft is crushed by a crusher 5. A rotary pump 8 and a portable conveyor 9 are provided as conveying means for conveying the earth excavated in the shaft to the crusher.
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Inventors:
Iizumi Masaru
Akira Kojima
Muroi Takashi
Masao Ito
Hideki Matsumoto
Akira Kojima
Muroi Takashi
Masao Ito
Hideki Matsumoto
Application Number:
JP11553299A
Publication Date:
September 28, 2005
Filing Date:
April 22, 1999
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
E02F7/10; E21D9/12; E21F13/02; (IPC1-7): E21D9/12
Domestic Patent References:
| JP5771590U | ||||
| JP5443540Y1 | ||||
| JP1077784A | ||||
| JP663654U | ||||
| JP4285289A | ||||
| JP5248167A | ||||
| JP78492U |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama