JPH0542537B2 - - Google Patents
Info
- Publication number
- JPH0542537B2 JPH0542537B2 JP8552085A JP8552085A JPH0542537B2 JP H0542537 B2 JPH0542537 B2 JP H0542537B2 JP 8552085 A JP8552085 A JP 8552085A JP 8552085 A JP8552085 A JP 8552085A JP H0542537 B2 JPH0542537 B2 JP H0542537B2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- raking
- arm
- pin
- sand
- 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.)
- Expired - Lifetime
Links
- 238000007790 scraping Methods 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 18
- 238000003780 insertion Methods 0.000 description 15
- 230000037431 insertion Effects 0.000 description 15
- 230000003028 elevating effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Sewage (AREA)
- Shovels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8552085A JPS61246434A (ja) | 1985-04-23 | 1985-04-23 | 伏越し人孔用土砂掻寄せ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8552085A JPS61246434A (ja) | 1985-04-23 | 1985-04-23 | 伏越し人孔用土砂掻寄せ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61246434A JPS61246434A (ja) | 1986-11-01 |
JPH0542537B2 true JPH0542537B2 (es) | 1993-06-28 |
Family
ID=13861181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8552085A Granted JPS61246434A (ja) | 1985-04-23 | 1985-04-23 | 伏越し人孔用土砂掻寄せ装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61246434A (es) |
-
1985
- 1985-04-23 JP JP8552085A patent/JPS61246434A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61246434A (ja) | 1986-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |