JPS62313B2 - - Google Patents
Info
- Publication number
- JPS62313B2 JPS62313B2 JP19446281A JP19446281A JPS62313B2 JP S62313 B2 JPS62313 B2 JP S62313B2 JP 19446281 A JP19446281 A JP 19446281A JP 19446281 A JP19446281 A JP 19446281A JP S62313 B2 JPS62313 B2 JP S62313B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pressure
- shaft
- drain
- hydraulic
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 51
- 239000010720 hydraulic oil Substances 0.000 description 10
- 238000009412 basement excavation Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19446281A JPS57119089A (en) | 1981-12-04 | 1981-12-04 | Safety device for underwater shaft sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19446281A JPS57119089A (en) | 1981-12-04 | 1981-12-04 | Safety device for underwater shaft sealing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57119089A JPS57119089A (en) | 1982-07-24 |
| JPS62313B2 true JPS62313B2 (en]) | 1987-01-07 |
Family
ID=16324957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19446281A Granted JPS57119089A (en) | 1981-12-04 | 1981-12-04 | Safety device for underwater shaft sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57119089A (en]) |
-
1981
- 1981-12-04 JP JP19446281A patent/JPS57119089A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57119089A (en) | 1982-07-24 |
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