GB2073804B - Tunnel shield for use in coal mines and method - Google Patents
Tunnel shield for use in coal mines and methodInfo
- Publication number
- GB2073804B GB2073804B GB8003719A GB8003719A GB2073804B GB 2073804 B GB2073804 B GB 2073804B GB 8003719 A GB8003719 A GB 8003719A GB 8003719 A GB8003719 A GB 8003719A GB 2073804 B GB2073804 B GB 2073804B
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal mines
- tunnel shield
- tunnel
- shield
- mines
- 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
- 239000003245 coal Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8003719A GB2073804B (en) | 1980-02-04 | 1980-02-04 | Tunnel shield for use in coal mines and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8003719A GB2073804B (en) | 1980-02-04 | 1980-02-04 | Tunnel shield for use in coal mines and method |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2073804A GB2073804A (en) | 1981-10-21 |
GB2073804B true GB2073804B (en) | 1983-06-02 |
Family
ID=10511116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8003719A Expired GB2073804B (en) | 1980-02-04 | 1980-02-04 | Tunnel shield for use in coal mines and method |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2073804B (en) |
-
1980
- 1980-02-04 GB GB8003719A patent/GB2073804B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2073804A (en) | 1981-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |