JPH0352875Y2 - - Google Patents
Info
- Publication number
- JPH0352875Y2 JPH0352875Y2 JP6015986U JP6015986U JPH0352875Y2 JP H0352875 Y2 JPH0352875 Y2 JP H0352875Y2 JP 6015986 U JP6015986 U JP 6015986U JP 6015986 U JP6015986 U JP 6015986U JP H0352875 Y2 JPH0352875 Y2 JP H0352875Y2
- Authority
- JP
- Japan
- Prior art keywords
- muddying
- seal
- mud
- pressure
- diameter side
- 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 46
- 238000007789 sealing Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 241000283216 Phocidae Species 0.000 description 38
- 239000004576 sand Substances 0.000 description 5
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6015986U JPH0352875Y2 (en]) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6015986U JPH0352875Y2 (en]) | 1986-04-23 | 1986-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62172797U JPS62172797U (en]) | 1987-11-02 |
| JPH0352875Y2 true JPH0352875Y2 (en]) | 1991-11-18 |
Family
ID=30892323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6015986U Expired JPH0352875Y2 (en]) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352875Y2 (en]) |
-
1986
- 1986-04-23 JP JP6015986U patent/JPH0352875Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62172797U (en]) | 1987-11-02 |
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