PL292203A1 - Method of filling roof breakouts and retaining mat for use in that method - Google Patents
Method of filling roof breakouts and retaining mat for use in that methodInfo
- Publication number
- PL292203A1 PL292203A1 PL29220391A PL29220391A PL292203A1 PL 292203 A1 PL292203 A1 PL 292203A1 PL 29220391 A PL29220391 A PL 29220391A PL 29220391 A PL29220391 A PL 29220391A PL 292203 A1 PL292203 A1 PL 292203A1
- Authority
- PL
- Poland
- Prior art keywords
- breakouts
- retaining mat
- filling roof
- roof
- filling
- Prior art date
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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/157—Laggings making use of fluid cushions, e.g. the fluid containing a hardenable material
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)
- Revetment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4034810 | 1990-11-02 | ||
DE19914122568 DE4122568A1 (en) | 1990-11-02 | 1991-07-08 | Method of filling voids arising from roof falls in mining - involves propping shield and placing on it reinforcing mat and plastic bag filled with lightweight concrete |
Publications (1)
Publication Number | Publication Date |
---|---|
PL292203A1 true PL292203A1 (en) | 1992-07-13 |
Family
ID=25898189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL29220391A PL292203A1 (en) | 1990-11-02 | 1991-10-28 | Method of filling roof breakouts and retaining mat for use in that method |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE4122568A1 (en) |
PL (1) | PL292203A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2247826T3 (en) * | 2008-02-19 | 2015-01-30 | Rag Ag | Method for the controlled maintaining of a distance between the roof and the face in longwall mining operations |
-
1991
- 1991-07-08 DE DE19914122568 patent/DE4122568A1/en not_active Withdrawn
- 1991-10-28 PL PL29220391A patent/PL292203A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE4122568A1 (en) | 1992-05-07 |
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