JPH0547839Y2 - - Google Patents
Info
- Publication number
- JPH0547839Y2 JPH0547839Y2 JP15153188U JP15153188U JPH0547839Y2 JP H0547839 Y2 JPH0547839 Y2 JP H0547839Y2 JP 15153188 U JP15153188 U JP 15153188U JP 15153188 U JP15153188 U JP 15153188U JP H0547839 Y2 JPH0547839 Y2 JP H0547839Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- liner plate
- steel duct
- steel
- duct
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 50
- 239000010959 steel Substances 0.000 claims description 50
- 238000009423 ventilation Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007664 blowing Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Duct Arrangements (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15153188U JPH0547839Y2 (enrdf_load_stackoverflow) | 1988-11-21 | 1988-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15153188U JPH0547839Y2 (enrdf_load_stackoverflow) | 1988-11-21 | 1988-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0273499U JPH0273499U (enrdf_load_stackoverflow) | 1990-06-05 |
| JPH0547839Y2 true JPH0547839Y2 (enrdf_load_stackoverflow) | 1993-12-16 |
Family
ID=31425660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15153188U Expired - Lifetime JPH0547839Y2 (enrdf_load_stackoverflow) | 1988-11-21 | 1988-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547839Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-11-21 JP JP15153188U patent/JPH0547839Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0273499U (enrdf_load_stackoverflow) | 1990-06-05 |
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