FR2520799A1 - Soutenement de toit de mines - Google Patents
Soutenement de toit de mines Download PDFInfo
- Publication number
- FR2520799A1 FR2520799A1 FR8301442A FR8301442A FR2520799A1 FR 2520799 A1 FR2520799 A1 FR 2520799A1 FR 8301442 A FR8301442 A FR 8301442A FR 8301442 A FR8301442 A FR 8301442A FR 2520799 A1 FR2520799 A1 FR 2520799A1
- Authority
- FR
- France
- Prior art keywords
- support
- support according
- roof
- intended
- come
- 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.)
- Withdrawn
Links
- 238000005065 mining Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/066—Pivoted cantilever extensions therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chain Conveyers (AREA)
- Agricultural Machines (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8202977 | 1982-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2520799A1 true FR2520799A1 (fr) | 1983-08-05 |
Family
ID=10528066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8301442A Withdrawn FR2520799A1 (fr) | 1982-02-02 | 1983-01-31 | Soutenement de toit de mines |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3303264A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2520799A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT388212B (de) * | 1986-07-02 | 1989-05-26 | Voest Alpine Ag | Verfahrbarer ausbaubock fuer die bruchkantensicherung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2819172C2 (de) * | 1978-05-02 | 1985-01-24 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Vorpfändeinrichtung für hydraulischen Schreitausbau |
-
1983
- 1983-01-31 FR FR8301442A patent/FR2520799A1/fr not_active Withdrawn
- 1983-02-01 DE DE19833303264 patent/DE3303264A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3303264A1 (de) | 1984-04-19 |
| DE3303264C2 (enrdf_load_stackoverflow) | 1987-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |