Title:
METHOD OF LAYING PIPELINE PIERCING DAM BODY BY NON-OPEN- CUTTING
Document Type and Number:
Japanese Patent JP3324513
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To ensure water barrier function so as to eliminate anxiety about water leakage and to execute work safely in the case of laying a pipeline piercing a dam body by non-open-cutting.
SOLUTION: Cement slurry is injected inside from the upper part of a dam body 1 to construct a water barrier wall body 3 for cutting off a predetermined pipeline. Propulsion pipes 5A, 5B,... are horizontally pushed into the dam body 1 from a shaft 4 while cutting, and a water barrier propulsion pipe 6 provided with two elastic water barrier rings 61A, 61B and a grout filling port 62 between both members is interposed in a predetermined position intersecting the water barrier wall body 3. After forming a predetermined pipeline by extending normal propulsion pipes, an actuating means 7 is started to make two elastic water barrier rings bulge outward to form a closed space partially partitioning an annular clearance C between the outer peripheral surface and a cut face at the time of propulsion. Group is filled in the space to replace it with a grout filled layer M, thus providing water barrier function.
Inventors:
Takashi Ueda
Mitsuhiro Murakami
Yasunari Suematsu
Keisuke Takagi
Mitsuhiro Murakami
Yasunari Suematsu
Keisuke Takagi
Application Number:
JP19661398A
Publication Date:
September 17, 2002
Filing Date:
June 26, 1998
Export Citation:
Assignee:
Kurimoto Iron Works Co., Ltd.
International Classes:
E02D3/12; E02B3/10; E21D9/06; (IPC1-7): E21D9/06; E02B3/10
Domestic Patent References:
| JP4146398A | ||||
| JP4155006A | ||||
| JP476197A | ||||
| JP4353190A | ||||
| JP61116899U | ||||
| JP5517857U |
Other References:
【文献】特許3233346(JP,B2)
Attorney, Agent or Firm:
Junzo Aono
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