JPH01111794U - - Google Patents
Info
- Publication number
- JPH01111794U JPH01111794U JP221688U JP221688U JPH01111794U JP H01111794 U JPH01111794 U JP H01111794U JP 221688 U JP221688 U JP 221688U JP 221688 U JP221688 U JP 221688U JP H01111794 U JPH01111794 U JP H01111794U
- Authority
- JP
- Japan
- Prior art keywords
- joining
- shield
- hood plate
- plate
- shield tunneling
- 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
- 230000005641 tunneling Effects 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP221688U JPH0516317Y2 (https=) | 1988-01-11 | 1988-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP221688U JPH0516317Y2 (https=) | 1988-01-11 | 1988-01-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01111794U true JPH01111794U (https=) | 1989-07-27 |
| JPH0516317Y2 JPH0516317Y2 (https=) | 1993-04-28 |
Family
ID=31202794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP221688U Expired - Lifetime JPH0516317Y2 (https=) | 1988-01-11 | 1988-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516317Y2 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5007777A (en) * | 1986-12-18 | 1991-04-16 | Noboru Itokazu | Hole saw |
-
1988
- 1988-01-11 JP JP221688U patent/JPH0516317Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516317Y2 (https=) | 1993-04-28 |