JPS6466370A - Method of removing contaminated piping of nuclear reactor facility - Google Patents
Method of removing contaminated piping of nuclear reactor facilityInfo
- Publication number
- JPS6466370A JPS6466370A JP22357487A JP22357487A JPS6466370A JP S6466370 A JPS6466370 A JP S6466370A JP 22357487 A JP22357487 A JP 22357487A JP 22357487 A JP22357487 A JP 22357487A JP S6466370 A JPS6466370 A JP S6466370A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cut
- exposed
- embedded
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
PURPOSE: To control radioactivity contamination and improve the safety of work by cutting concrete on the circumference portion of a radioactivity contaminated pipe embedded in a concrete body. CONSTITUTION: Appropriate positions of a concrete body are scoured by water jets, a contaminated pipe 2 is exposed by forming holes 3, the pipe 2 is cut and caps are placed over the cut portions. The periphery of the pipe 2 is cut using water jets. When embedded shallowly, the pipe 2 is cut from the right and the left and removed. When the pipe is embedded deeply, holes 5 are formed partway along the length, and the intermediate portions of the pipe 2 are exposed. Subsequently the right and left sides of the pipe 2 are cut vertically, it is cut in the facing directions from the lower end, and the periphery of the pipe 2 is cut away, the exposed portions of the pipe 2 in the holes 5 are hooked and suspended together with the concrete 1 and removed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62223574A JPH0758355B2 (en) | 1987-09-07 | 1987-09-07 | How to remove contaminated pipes from a nuclear reactor facility |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62223574A JPH0758355B2 (en) | 1987-09-07 | 1987-09-07 | How to remove contaminated pipes from a nuclear reactor facility |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6466370A true JPS6466370A (en) | 1989-03-13 |
JPH0758355B2 JPH0758355B2 (en) | 1995-06-21 |
Family
ID=16800296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62223574A Expired - Fee Related JPH0758355B2 (en) | 1987-09-07 | 1987-09-07 | How to remove contaminated pipes from a nuclear reactor facility |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0758355B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5329562A (en) * | 1991-08-26 | 1994-07-12 | Kabushiki Kaisha Dymosha | Method of cutting and removing nuclear reactor |
JP2013181921A (en) * | 2012-03-02 | 2013-09-12 | Shimizu Corp | Method for dismantling radioactive contaminated facility |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750280A (en) * | 1980-09-08 | 1982-03-24 | Nippon Kokan Kk <Nkk> | Gas shielded arc welding method |
-
1987
- 1987-09-07 JP JP62223574A patent/JPH0758355B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750280A (en) * | 1980-09-08 | 1982-03-24 | Nippon Kokan Kk <Nkk> | Gas shielded arc welding method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5329562A (en) * | 1991-08-26 | 1994-07-12 | Kabushiki Kaisha Dymosha | Method of cutting and removing nuclear reactor |
JP2013181921A (en) * | 2012-03-02 | 2013-09-12 | Shimizu Corp | Method for dismantling radioactive contaminated facility |
Also Published As
Publication number | Publication date |
---|---|
JPH0758355B2 (en) | 1995-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |