PL304891A1 - Active sill piece for longwall and gallery roof supports - Google Patents
Active sill piece for longwall and gallery roof supportsInfo
- Publication number
- PL304891A1 PL304891A1 PL93304891A PL30489193A PL304891A1 PL 304891 A1 PL304891 A1 PL 304891A1 PL 93304891 A PL93304891 A PL 93304891A PL 30489193 A PL30489193 A PL 30489193A PL 304891 A1 PL304891 A1 PL 304891A1
- Authority
- PL
- Poland
- Prior art keywords
- longwall
- active
- roof supports
- sill piece
- gallery roof
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/48—Chocks or the like
- E21D15/483—Chocks or the like made of flexible containers, e.g. inflatable, with or without reinforcement, e.g. filled with water, backfilling material or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Tires In General (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4243711 | 1992-12-23 | ||
DE4343313A DE4343313A1 (en) | 1992-12-23 | 1993-12-20 | Active support threshold for pit expansion in longwall and track |
PCT/DE1993/001229 WO1994015071A1 (en) | 1992-12-23 | 1993-12-22 | Active shoring for mine support in longwall and section |
Publications (1)
Publication Number | Publication Date |
---|---|
PL304891A1 true PL304891A1 (en) | 1995-01-09 |
Family
ID=25921668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL93304891A PL304891A1 (en) | 1992-12-23 | 1993-12-22 | Active sill piece for longwall and gallery roof supports |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1090622A (en) |
AU (1) | AU5692694A (en) |
PL (1) | PL304891A1 (en) |
WO (1) | WO1994015071A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1291310B (en) * | 1963-06-28 | 1969-03-27 | Rheinstahl Wanheim Gmbh | Route expansion |
GB1348131A (en) * | 1970-05-28 | 1974-03-13 | Dobson Park Ind | Cast or moulded structures and the making thereof |
DE2415106A1 (en) * | 1974-03-28 | 1975-10-16 | Gfp Ges Fuer Produktentwicklun | Roadway support for mines - has flexible containers filled with liquid inserted between lagging and roadway strata |
US4072015A (en) * | 1976-12-30 | 1978-02-07 | The United States Of America As Represented By The Secretary Of The Interior | Borehole aerostatic ground support system |
CA1247384A (en) * | 1985-01-29 | 1988-12-28 | Alethea R.M. Hall | Support member |
DE3602776A1 (en) * | 1986-01-30 | 1987-08-06 | Ketterer Klaus | Method of securing the roadside edges in longwall face mining, and pack of construction material |
ES2038949A6 (en) * | 1989-05-30 | 1993-08-01 | Fosroc International Ltd | Load support |
DE9012170U1 (en) * | 1990-08-24 | 1990-11-29 | Radtke, Johannes, 4130 Moers | Support pillars with impermeable fabric cover |
-
1993
- 1993-12-22 WO PCT/DE1993/001229 patent/WO1994015071A1/en active Application Filing
- 1993-12-22 PL PL93304891A patent/PL304891A1/en unknown
- 1993-12-22 AU AU56926/94A patent/AU5692694A/en not_active Abandoned
- 1993-12-23 CN CN 93119965 patent/CN1090622A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AU5692694A (en) | 1994-07-19 |
WO1994015071A1 (en) | 1994-07-07 |
CN1090622A (en) | 1994-08-10 |
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