Title:
CONSTRICTION METHOD AND DEVICE FOR REMOVING SEDIMENT
Document Type and Number:
Japanese Patent JP3856371
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a construction method and a device for removing sediment on a bottom of a dam lake, which allows the sediment to be efficiently removed from the dam and can greatly reduce the cost of removal of the sediment.
SOLUTION: Bifurcated piping (3) is arranged in the dam lake (2); an end (3ae) of one branch pipe (3a) is arranged in the vicinity (including the inside of a layer of the sediment 2a) of a bottom part (2c) of the dam lake (2); an end (3be) of the other branch pipe (3b) is arranged above the sediment (2a); piping (3c), into which the two branch pipes (3a and 3b) are merged, goes over the dam (1) (for example, straddles a top part 1a of the dam 1 or is arranged through a through-hole 1b provided in the dam 1), so as to be extended to a downstream side (1c); the sediment (2a) is sucked in from the end (3ae); water (2b) is sucked in from the branch pipe (3b); and a solid-liquid two-phase flow (2ab), which is composed of the sediment (2a) and the water (2b), flows through the piping (3c).
Inventors:
Kiyoyuki Horii
Hiroshi Yoshida
Masahiro Ichi
Hiroshi Yoshida
Masahiro Ichi
Application Number:
JP2001309409A
Publication Date:
December 13, 2006
Filing Date:
October 05, 2001
Export Citation:
Assignee:
Chemical Grout Co., Ltd.
Kiyoyuki Horii
Kiyoyuki Horii
International Classes:
E02B8/00; E02F3/88; E02F7/10; (IPC1-7): E02B8/00; E02F3/88; E02F7/10
Domestic Patent References:
| JP9021127A | ||||
| JP57008824U | ||||
| JP62007427U |
Attorney, Agent or Firm:
Toshitada Takahashi
Toshikuni Takahashi
Toshikuni Takahashi
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