GB2002714B - Roadway shield - Google Patents
Roadway shieldInfo
- Publication number
- GB2002714B GB2002714B GB7831801A GB7831801A GB2002714B GB 2002714 B GB2002714 B GB 2002714B GB 7831801 A GB7831801 A GB 7831801A GB 7831801 A GB7831801 A GB 7831801A GB 2002714 B GB2002714 B GB 2002714B
- Authority
- GB
- United Kingdom
- Prior art keywords
- roadway
- shield
- roadway shield
- 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
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Tents Or Canopies (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7831801A GB2002714B (en) | 1977-08-02 | 1978-08-01 | Roadway shield |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3233677 | 1977-08-02 | ||
GB7831801A GB2002714B (en) | 1977-08-02 | 1978-08-01 | Roadway shield |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2002714A GB2002714A (en) | 1979-02-28 |
GB2002714B true GB2002714B (en) | 1982-01-06 |
Family
ID=26261319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7831801A Expired GB2002714B (en) | 1977-08-02 | 1978-08-01 | Roadway shield |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2002714B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102261972A (en) * | 2011-04-19 | 2011-11-30 | 中国矿业大学(北京) | Experimental platform for relation between mining fully-mechanized support and surrounding rocks |
-
1978
- 1978-08-01 GB GB7831801A patent/GB2002714B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102261972A (en) * | 2011-04-19 | 2011-11-30 | 中国矿业大学(北京) | Experimental platform for relation between mining fully-mechanized support and surrounding rocks |
Also Published As
Publication number | Publication date |
---|---|
GB2002714A (en) | 1979-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |