JPS644908Y2 - - Google Patents
Info
- Publication number
- JPS644908Y2 JPS644908Y2 JP3764784U JP3764784U JPS644908Y2 JP S644908 Y2 JPS644908 Y2 JP S644908Y2 JP 3764784 U JP3764784 U JP 3764784U JP 3764784 U JP3764784 U JP 3764784U JP S644908 Y2 JPS644908 Y2 JP S644908Y2
- Authority
- JP
- Japan
- Prior art keywords
- narrow
- underdrain
- underdrain drainage
- drainage
- sheet
- 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 43
- 239000006260 foam Substances 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Lining And Supports For Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3764784U JPS60151929U (ja) | 1984-03-15 | 1984-03-15 | 暗渠排水用材 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3764784U JPS60151929U (ja) | 1984-03-15 | 1984-03-15 | 暗渠排水用材 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60151929U JPS60151929U (ja) | 1985-10-09 |
| JPS644908Y2 true JPS644908Y2 (enrdf_load_stackoverflow) | 1989-02-08 |
Family
ID=30543922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3764784U Granted JPS60151929U (ja) | 1984-03-15 | 1984-03-15 | 暗渠排水用材 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60151929U (enrdf_load_stackoverflow) |
-
1984
- 1984-03-15 JP JP3764784U patent/JPS60151929U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60151929U (ja) | 1985-10-09 |