JPH0414549Y2 - - Google Patents
Info
- Publication number
- JPH0414549Y2 JPH0414549Y2 JP15127186U JP15127186U JPH0414549Y2 JP H0414549 Y2 JPH0414549 Y2 JP H0414549Y2 JP 15127186 U JP15127186 U JP 15127186U JP 15127186 U JP15127186 U JP 15127186U JP H0414549 Y2 JPH0414549 Y2 JP H0414549Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cushion material
- contact
- culvert
- point contact
- 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
Links
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15127186U JPH0414549Y2 (en]) | 1986-09-30 | 1986-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15127186U JPH0414549Y2 (en]) | 1986-09-30 | 1986-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356791U JPS6356791U (en]) | 1988-04-15 |
| JPH0414549Y2 true JPH0414549Y2 (en]) | 1992-03-31 |
Family
ID=31068190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15127186U Expired JPH0414549Y2 (en]) | 1986-09-30 | 1986-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0414549Y2 (en]) |
-
1986
- 1986-09-30 JP JP15127186U patent/JPH0414549Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6356791U (en]) | 1988-04-15 |
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