GB2022756A - Mine Bolt and Method of Installing a Mine Bolt in Rock Formation - Google Patents
Mine Bolt and Method of Installing a Mine Bolt in Rock FormationInfo
- Publication number
- GB2022756A GB2022756A GB7919458A GB7919458A GB2022756A GB 2022756 A GB2022756 A GB 2022756A GB 7919458 A GB7919458 A GB 7919458A GB 7919458 A GB7919458 A GB 7919458A GB 2022756 A GB2022756 A GB 2022756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bolt
- rod
- shell
- thrust
- cone
- 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.)
- Withdrawn
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 239000011435 rock Substances 0.000 title 1
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
- E21D21/008—Anchoring or tensioning 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)
- Dowels (AREA)
Abstract
A mine bolt has an anchor device 25 including an expansible shell 29 surrounding a cone member 27 in threaded engagement with a bolt rod 23. Axial movement of the shell 29, as the cone 27 moves into the shell 29, is blocked by a thrust member 28 having a limited resistance to thrust. On exceeding the thrust limit, the thrust member 28 strips out of its threaded engagement with the rod 23, and slides over the unthreaded portion of the rod 23 on continued rotation of the bolt rod 23. During this continued rotation, the cone 27 and shell 29 remain relatively fixed, with the rod 23 advancing axially in its threaded engagement to tighten the head 24 of the bolt against a surface plate 31. The method provides for setting an anchor bolt to a limit pressure controlled by this stripping action. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91294878A | 1978-06-05 | 1978-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2022756A true GB2022756A (en) | 1979-12-19 |
Family
ID=25432737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7919458A Withdrawn GB2022756A (en) | 1978-06-05 | 1979-06-04 | Mine Bolt and Method of Installing a Mine Bolt in Rock Formation |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS54159553A (en) |
AU (1) | AU4772779A (en) |
GB (1) | GB2022756A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4602500A (en) * | 1985-08-30 | 1986-07-29 | Haskel, Inc. | Apparatus for leakage testing of tubes and joints |
DE3615163A1 (en) * | 1985-05-06 | 1986-11-27 | Vorspann-Technik GmbH, Salzburg | Anchor element and method of dismounting one or more tendons of an anchor |
GB2179114A (en) * | 1985-08-08 | 1987-02-25 | Lionel William Jenkins | Attachment for tubular body |
US4784530A (en) * | 1986-09-16 | 1988-11-15 | Price Jr Stanley J | Roof bolt apparatus |
US5133618A (en) * | 1991-01-11 | 1992-07-28 | Ici Ceramics, Inc. | Rod end joint |
US6048149A (en) * | 1999-02-05 | 2000-04-11 | Garcia; Enrique | Fastening anchorage assembly |
WO2012171155A1 (en) * | 2011-06-13 | 2012-12-20 | 中国矿业大学(北京) | Constant-resistance and large deformation anchor cable and constant-resistance device |
CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010058474A1 (en) * | 2008-11-20 | 2010-05-27 | 光洋器材株式会社 | Expansion fastener |
RU2655248C2 (en) | 2013-08-08 | 2018-05-24 | Хова Корпорейшн | Anchor bolt |
WO2015019630A1 (en) * | 2013-08-08 | 2015-02-12 | 株式会社豊和 | Anchor bolt |
-
1979
- 1979-03-14 JP JP2984279A patent/JPS54159553A/en active Pending
- 1979-06-04 AU AU47727/79A patent/AU4772779A/en not_active Abandoned
- 1979-06-04 GB GB7919458A patent/GB2022756A/en not_active Withdrawn
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3615163A1 (en) * | 1985-05-06 | 1986-11-27 | Vorspann-Technik GmbH, Salzburg | Anchor element and method of dismounting one or more tendons of an anchor |
AT385088B (en) * | 1985-05-06 | 1988-02-10 | Vorspann Technik Gmbh | ANCHOR ELEMENT, SUITABLE FOR REMOVING ONE OR SEVERAL TENSION LINKS |
GB2179114A (en) * | 1985-08-08 | 1987-02-25 | Lionel William Jenkins | Attachment for tubular body |
US4602500A (en) * | 1985-08-30 | 1986-07-29 | Haskel, Inc. | Apparatus for leakage testing of tubes and joints |
US4784530A (en) * | 1986-09-16 | 1988-11-15 | Price Jr Stanley J | Roof bolt apparatus |
US5133618A (en) * | 1991-01-11 | 1992-07-28 | Ici Ceramics, Inc. | Rod end joint |
US6048149A (en) * | 1999-02-05 | 2000-04-11 | Garcia; Enrique | Fastening anchorage assembly |
WO2012171155A1 (en) * | 2011-06-13 | 2012-12-20 | 中国矿业大学(北京) | Constant-resistance and large deformation anchor cable and constant-resistance device |
US9797248B2 (en) | 2011-06-13 | 2017-10-24 | China University Of Mining & Technology (Beijing) | Constant-resistance and large deformation anchor cable and constant-resistance device |
CN106246675A (en) * | 2015-06-10 | 2016-12-21 | 上海振纯新型建材有限公司 | A kind of expansion bolt with stability |
CN106246675B (en) * | 2015-06-10 | 2023-10-27 | 上海振纯新型建材有限公司 | Expansion bolt with stability |
Also Published As
Publication number | Publication date |
---|---|
AU4772779A (en) | 1979-12-13 |
JPS54159553A (en) | 1979-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |