JPH0542155Y2 - - Google Patents
Info
- Publication number
- JPH0542155Y2 JPH0542155Y2 JP2412388U JP2412388U JPH0542155Y2 JP H0542155 Y2 JPH0542155 Y2 JP H0542155Y2 JP 2412388 U JP2412388 U JP 2412388U JP 2412388 U JP2412388 U JP 2412388U JP H0542155 Y2 JPH0542155 Y2 JP H0542155Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- switching valve
- propulsion jack
- propulsion
- load
- 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
- 239000007788 liquid Substances 0.000 claims description 25
- 230000002265 prevention Effects 0.000 claims description 6
- 230000005641 tunneling Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 230000036461 convulsion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 206010034719 Personality change Diseases 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2412388U JPH0542155Y2 (zh) | 1988-02-25 | 1988-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2412388U JPH0542155Y2 (zh) | 1988-02-25 | 1988-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01136592U JPH01136592U (zh) | 1989-09-19 |
| JPH0542155Y2 true JPH0542155Y2 (zh) | 1993-10-25 |
Family
ID=31243699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2412388U Expired - Lifetime JPH0542155Y2 (zh) | 1988-02-25 | 1988-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542155Y2 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0745794B2 (ja) * | 1989-12-20 | 1995-05-17 | 株式会社トキメック | シールド掘進機の自動方向制御装置 |
| JP2553720Y2 (ja) * | 1991-05-01 | 1997-11-12 | 株式会社小松製作所 | シールド掘進機のバックリング防止装置 |
-
1988
- 1988-02-25 JP JP2412388U patent/JPH0542155Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01136592U (zh) | 1989-09-19 |
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