JPS55142810A - Forming of cement mortar layer outside underwater structure - Google Patents
Forming of cement mortar layer outside underwater structureInfo
- Publication number
- JPS55142810A JPS55142810A JP4947979A JP4947979A JPS55142810A JP S55142810 A JPS55142810 A JP S55142810A JP 4947979 A JP4947979 A JP 4947979A JP 4947979 A JP4947979 A JP 4947979A JP S55142810 A JPS55142810 A JP S55142810A
- Authority
- JP
- Japan
- Prior art keywords
- cement mortar
- hose
- outside
- underwater structure
- discharged
- 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.)
- Pending
Links
Abstract
PURPOSE: To increase the corrosion-protecting function and strength of an underwater structure including a steel-pipe pile by a method wherein the water inside the frame is discharged before the injection of cement mortar into the outside part of the underwater structure and then the cement mortar is injected in the inside of the frame which is kept almost watertight, thereby the necessary density of the mortar being maintained.
CONSTITUTION: Outside a structure 1 such as a steel-pipe pile a form 2 made of glass-fiber mixed reinforced cement is provided concentrically with the pile, while a saucer 3 is provided in continuation to the bottom part of the form. Next, an injection hose 4 and a discharge pipe 5 are inserted into the form 2 in such a way that the lower ends thereof are positioned near the saucer 3, and after the upper opening of the form 2 being blocked up by a hood 6, a pressure-air hose 7 is inserted through the hood 7. Then, compressed air being sent into the inside of the form 2 through the hose 7, the water inside the form is discharged outside through the pipe 5. And, the form 2 being kept watertight by sending the air continuously after the water being discharged, cement mortar 8' is injected consecutively from the lower part to the upper through the hose 4 and hardened, thus a cement mortar layer 8 being formed outside the structure 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4947979A JPS55142810A (en) | 1979-04-20 | 1979-04-20 | Forming of cement mortar layer outside underwater structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4947979A JPS55142810A (en) | 1979-04-20 | 1979-04-20 | Forming of cement mortar layer outside underwater structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55142810A true JPS55142810A (en) | 1980-11-07 |
Family
ID=12832286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4947979A Pending JPS55142810A (en) | 1979-04-20 | 1979-04-20 | Forming of cement mortar layer outside underwater structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55142810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60194037U (en) * | 1984-05-31 | 1985-12-24 | 東亜建設工業株式会社 | floating formwork |
| JPS6433341A (en) * | 1987-07-30 | 1989-02-03 | Mitsubishi Mining & Cement Co | Permanent retaining frame |
| JP2022011792A (en) * | 2020-06-30 | 2022-01-17 | 五洋建設株式会社 | Corrosion prevention apparatus for steel materials and corrosion prevention method for steel pipe piles |
-
1979
- 1979-04-20 JP JP4947979A patent/JPS55142810A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60194037U (en) * | 1984-05-31 | 1985-12-24 | 東亜建設工業株式会社 | floating formwork |
| JPS6433341A (en) * | 1987-07-30 | 1989-02-03 | Mitsubishi Mining & Cement Co | Permanent retaining frame |
| JP2022011792A (en) * | 2020-06-30 | 2022-01-17 | 五洋建設株式会社 | Corrosion prevention apparatus for steel materials and corrosion prevention method for steel pipe piles |
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