JPS57104724A - Method and apparatus for moving excavated soil from pneumatic caisson work - Google Patents
Method and apparatus for moving excavated soil from pneumatic caisson workInfo
- Publication number
- JPS57104724A JPS57104724A JP18020680A JP18020680A JPS57104724A JP S57104724 A JPS57104724 A JP S57104724A JP 18020680 A JP18020680 A JP 18020680A JP 18020680 A JP18020680 A JP 18020680A JP S57104724 A JPS57104724 A JP S57104724A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- excavated soil
- sand
- valve
- leak
- 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
Abstract
PURPOSE: To efficiently move and discharge excavated soil without the leak of compressed air from a pneumatic work chamber to outside by using a system in which excavated soil is pressed from a spiral face onto the inner surface of an outer cover and gate valves are provided to an excavated soil-charging hopper and a soil tank.
CONSTITUTION: Excavated soil M is pressed on the inner surface 5' of an outer cover 5 by the spiral face F of the spiral blade 18 of a vertical screw conveyer 3, whereby the soil and sand M is effectivey moved upwards by a frictional force between the inner surface 5' and the soil and sand M. The gate valves 10 and 12 of the excavated soil-charging hopper 9 and the soil tank 11 are opened and the gate valve 14 is closed to move excavated soil inside the pneumatic work chamber 2 of a caisson 1. Since soil and sand are discharged by closing the valve 12 and opening the valve 14, the soil and sand can be continuously discharged without the leak of compressed air. Also, since the connection of conveyers 3 as the caisson settles is made by closing the valve 10, the leak of compressed air can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18020680A JPS6022131B2 (en) | 1980-12-19 | 1980-12-19 | Method and device for excavating and transporting soil using a pressurized caisson |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18020680A JPS6022131B2 (en) | 1980-12-19 | 1980-12-19 | Method and device for excavating and transporting soil using a pressurized caisson |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57104724A true JPS57104724A (en) | 1982-06-29 |
JPS6022131B2 JPS6022131B2 (en) | 1985-05-31 |
Family
ID=16079248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18020680A Expired JPS6022131B2 (en) | 1980-12-19 | 1980-12-19 | Method and device for excavating and transporting soil using a pressurized caisson |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6022131B2 (en) |
-
1980
- 1980-12-19 JP JP18020680A patent/JPS6022131B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6022131B2 (en) | 1985-05-31 |
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