AU473662B1 - Mine roof pins - Google Patents
Mine roof pinsInfo
- Publication number
- AU473662B1 AU473662B1 AU29095/71A AU2909571A AU473662B1 AU 473662 B1 AU473662 B1 AU 473662B1 AU 29095/71 A AU29095/71 A AU 29095/71A AU 2909571 A AU2909571 A AU 2909571A AU 473662 B1 AU473662 B1 AU 473662B1
- Authority
- AU
- Australia
- Prior art keywords
- mine roof
- pins
- roof pins
- mine
- roof
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU29095/71A AU473662B1 (en) | 1971-05-20 | 1971-05-20 | Mine roof pins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU29095/71A AU473662B1 (en) | 1971-05-20 | 1971-05-20 | Mine roof pins |
Publications (1)
Publication Number | Publication Date |
---|---|
AU473662B1 true AU473662B1 (en) | 1972-11-23 |
Family
ID=3717197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU29095/71A Expired AU473662B1 (en) | 1971-05-20 | 1971-05-20 | Mine roof pins |
Country Status (1)
Country | Link |
---|---|
AU (1) | AU473662B1 (en) |
-
1971
- 1971-05-20 AU AU29095/71A patent/AU473662B1/en not_active Expired
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