JPS6144191B2 - - Google Patents
Info
- Publication number
- JPS6144191B2 JPS6144191B2 JP56059182A JP5918281A JPS6144191B2 JP S6144191 B2 JPS6144191 B2 JP S6144191B2 JP 56059182 A JP56059182 A JP 56059182A JP 5918281 A JP5918281 A JP 5918281A JP S6144191 B2 JPS6144191 B2 JP S6144191B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- water
- cylinder
- striking
- striking piston
- 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 33
- 239000011435 rock Substances 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000009527 percussion Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5918281A JPS57174590A (en) | 1981-04-21 | 1981-04-21 | Water powered boring machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5918281A JPS57174590A (en) | 1981-04-21 | 1981-04-21 | Water powered boring machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57174590A JPS57174590A (en) | 1982-10-27 |
JPS6144191B2 true JPS6144191B2 (fr) | 1986-10-01 |
Family
ID=13106002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5918281A Granted JPS57174590A (en) | 1981-04-21 | 1981-04-21 | Water powered boring machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57174590A (fr) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501323A (fr) * | 1973-05-11 | 1975-01-08 |
-
1981
- 1981-04-21 JP JP5918281A patent/JPS57174590A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501323A (fr) * | 1973-05-11 | 1975-01-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS57174590A (en) | 1982-10-27 |
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