ZA200202163B - "A rock anchor". - Google Patents
"A rock anchor".Info
- Publication number
- ZA200202163B ZA200202163B ZA200202163A ZA200202163A ZA200202163B ZA 200202163 B ZA200202163 B ZA 200202163B ZA 200202163 A ZA200202163 A ZA 200202163A ZA 200202163 A ZA200202163 A ZA 200202163A ZA 200202163 B ZA200202163 B ZA 200202163B
- Authority
- ZA
- South Africa
- Prior art keywords
- rock anchor
- rock
- anchor
- Prior art date
Links
- 239000011435 rock Substances 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
- F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200202163A ZA200202163B (en) | 2001-10-15 | 2002-03-15 | "A rock anchor". |
PCT/IB2002/004022 WO2003033877A1 (en) | 2001-10-15 | 2002-10-01 | A rock anchor load indicator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200108452 | 2001-10-15 | ||
ZA200202163A ZA200202163B (en) | 2001-10-15 | 2002-03-15 | "A rock anchor". |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200202163B true ZA200202163B (en) | 2002-10-24 |
Family
ID=27145594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200202163A ZA200202163B (en) | 2001-10-15 | 2002-03-15 | "A rock anchor". |
Country Status (2)
Country | Link |
---|---|
WO (1) | WO2003033877A1 (en) |
ZA (1) | ZA200202163B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2881776B1 (en) * | 2005-02-04 | 2008-10-03 | Germain Ancel | MAXIMUM EFFORT ALERT DEVICE IN A FORMWORK HOLDING ROD |
EP1980712A1 (en) * | 2007-04-13 | 2008-10-15 | Lipsker & Partners Engineering Services (1975) Ltd | Load cell for ground anchors |
CN103422890B (en) * | 2013-07-26 | 2016-06-01 | 山东大学 | A kind of novel anchor rod withdrawal resistance alarm and using method thereof |
CN103670473B (en) * | 2013-11-28 | 2017-01-18 | 尤洛卡(山东)深部地压防治安全技术有限公司 | Anchor bolt fastening force status indication washer |
US9574597B2 (en) | 2014-06-30 | 2017-02-21 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Fastening device |
CA2985365C (en) * | 2015-05-14 | 2023-09-12 | Lifepoint International Pty. Limited | Anchor, indicator, anchor assembly and fall arrest system |
CN109642838B (en) * | 2016-06-21 | 2021-02-09 | 警报技术有限公司 | Sensing device of rock anchor rod |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021747A (en) * | 1953-03-19 | 1962-02-20 | Goodyear Tire & Rubber | Method and washer means including a calibrated rubber layer for measuring bolt tension |
DE1144945B (en) * | 1958-12-06 | 1963-03-07 | Salzdefurth Ver Kaliwerke | Device for debit note |
US3104645A (en) * | 1961-03-22 | 1963-09-24 | Harrison Henry | Bolt stress indicator |
GB8501896D0 (en) * | 1985-01-25 | 1985-02-27 | Clay Cross Co Plc | Load-indicating device |
CA2018970A1 (en) * | 1990-06-13 | 1991-12-13 | Gordon R. Friesen | Rockbolt load indicator |
-
2002
- 2002-03-15 ZA ZA200202163A patent/ZA200202163B/en unknown
- 2002-10-01 WO PCT/IB2002/004022 patent/WO2003033877A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003033877A1 (en) | 2003-04-24 |
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