JPH025495U - - Google Patents
Info
- Publication number
- JPH025495U JPH025495U JP8189788U JP8189788U JPH025495U JP H025495 U JPH025495 U JP H025495U JP 8189788 U JP8189788 U JP 8189788U JP 8189788 U JP8189788 U JP 8189788U JP H025495 U JPH025495 U JP H025495U
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- underground
- ring
- tunnel
- shield
- 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
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000005060 rubber Substances 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8189788U JPH0540151Y2 (en]) | 1988-06-20 | 1988-06-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8189788U JPH0540151Y2 (en]) | 1988-06-20 | 1988-06-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH025495U true JPH025495U (en]) | 1990-01-16 |
| JPH0540151Y2 JPH0540151Y2 (en]) | 1993-10-12 |
Family
ID=31306665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8189788U Expired - Lifetime JPH0540151Y2 (en]) | 1988-06-20 | 1988-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540151Y2 (en]) |
-
1988
- 1988-06-20 JP JP8189788U patent/JPH0540151Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540151Y2 (en]) | 1993-10-12 |
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