GB2189529B - Improvements in and relating to mine or tunnel roof supports - Google Patents
Improvements in and relating to mine or tunnel roof supportsInfo
- Publication number
- GB2189529B GB2189529B GB08707842A GB8707842A GB2189529B GB 2189529 B GB2189529 B GB 2189529B GB 08707842 A GB08707842 A GB 08707842A GB 8707842 A GB8707842 A GB 8707842A GB 2189529 B GB2189529 B GB 2189529B
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine
- relating
- roof supports
- tunnel roof
- tunnel
- 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
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/26—Shoes for connecting arch members to longitudinal struts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868609221A GB8609221D0 (en) | 1986-04-16 | 1986-04-16 | Mine/tunnel roof supports |
GB868615901A GB8615901D0 (en) | 1986-04-16 | 1986-06-30 | Mine/tunnel roof supports |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8707842D0 GB8707842D0 (en) | 1987-05-07 |
GB2189529A GB2189529A (en) | 1987-10-28 |
GB2189529B true GB2189529B (en) | 1988-11-30 |
Family
ID=26290630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08707842A Expired GB2189529B (en) | 1986-04-16 | 1987-04-02 | Improvements in and relating to mine or tunnel roof supports |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2189529B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8814641D0 (en) * | 1988-06-20 | 1988-07-27 | Caledonian Mining Co Ltd | Improvements in/relating to joint members |
CN103670468B (en) * | 2013-12-04 | 2015-12-02 | 中国矿业大学(北京) | Allow pressure type base angle sleeve pipe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB291705A (en) * | 1928-01-18 | 1928-06-07 | Waldemar Moll | Improvements in or relating to shoring structures for mines |
GB986448A (en) * | 1963-01-19 | 1965-03-17 | Downings Barnsley Ltd | Improvements in or relating to struts for use in mining |
-
1987
- 1987-04-02 GB GB08707842A patent/GB2189529B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2189529A (en) | 1987-10-28 |
GB8707842D0 (en) | 1987-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
775 | Application for amendment of specification (sect. 75/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
727 | Application made for amendment of specification (sect. 27/1977) | ||
727A | Application for amendment of specification now open to opposition (sect. 27/1977) | ||
727B | Case decided by the comptroller ** specification amended (sect. 27/1977) | ||
SP | Amendment (slips) printed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940402 |