JPS6238516B2 - - Google Patents
Info
- Publication number
- JPS6238516B2 JPS6238516B2 JP13872181A JP13872181A JPS6238516B2 JP S6238516 B2 JPS6238516 B2 JP S6238516B2 JP 13872181 A JP13872181 A JP 13872181A JP 13872181 A JP13872181 A JP 13872181A JP S6238516 B2 JPS6238516 B2 JP S6238516B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- intermediate structure
- groove
- engaging
- front structure
- 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
- 238000005553 drilling Methods 0.000 claims description 17
- 239000011435 rock Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13872181A JPS5841179A (ja) | 1981-09-02 | 1981-09-02 | さく溝用ビツト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13872181A JPS5841179A (ja) | 1981-09-02 | 1981-09-02 | さく溝用ビツト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5841179A JPS5841179A (ja) | 1983-03-10 |
| JPS6238516B2 true JPS6238516B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-08-18 |
Family
ID=15228584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13872181A Granted JPS5841179A (ja) | 1981-09-02 | 1981-09-02 | さく溝用ビツト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5841179A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1981
- 1981-09-02 JP JP13872181A patent/JPS5841179A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5841179A (ja) | 1983-03-10 |