FR2228936B1 - - Google Patents
Info
- Publication number
- FR2228936B1 FR2228936B1 FR7416058A FR7416058A FR2228936B1 FR 2228936 B1 FR2228936 B1 FR 2228936B1 FR 7416058 A FR7416058 A FR 7416058A FR 7416058 A FR7416058 A FR 7416058A FR 2228936 B1 FR2228936 B1 FR 2228936B1
- Authority
- FR
- France
- 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
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
-
- 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
- E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
- E21D23/0095—Temporary supports at the driving front
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)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732323811 DE2323811A1 (de) | 1973-05-11 | 1973-05-11 | Stuetzrahmen fuer schreitbare gestelle fuer vortriebsarbeiten |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2228936A1 FR2228936A1 (fr) | 1974-12-06 |
FR2228936B1 true FR2228936B1 (fr) | 1976-12-24 |
Family
ID=5880623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7416058A Expired FR2228936B1 (fr) | 1973-05-11 | 1974-05-09 |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE812482A (fr) |
CH (1) | CH586837A5 (fr) |
DE (1) | DE2323811A1 (fr) |
FR (1) | FR2228936B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404098A1 (fr) * | 1977-09-21 | 1979-04-20 | Borie Entr Travaux Publics And | Bouclier pour le percement de galeries souterraines en demi-section superieure |
FR2415720A1 (fr) * | 1978-01-27 | 1979-08-24 | Stephanois Constr Meca | Soutenement de tracage a portance permanente |
DE3218455A1 (de) * | 1982-05-15 | 1983-11-17 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulischer streckenausbau und verfahren zum umruesten des streckenausbaus im zuge des streckenvortriebs |
DE19709336C2 (de) * | 1997-03-07 | 1999-05-12 | Zueblin Ag | Verfahren zum Betonieren von bewehrten Gewölben oder Decken im Tunnelbau |
CN112112673B (zh) * | 2020-09-24 | 2022-08-09 | 新汶矿业集团(伊犁)能源开发有限责任公司一矿 | 一种煤矿开采用巷道防落石安全支护装置 |
CN112228129B (zh) * | 2020-11-09 | 2024-07-16 | 柳州铁道职业技术学院 | 一种装配式隧道支护装置 |
CN116357357B (zh) * | 2023-06-01 | 2023-08-08 | 中信建设有限责任公司 | 一种隧道施工用洞壁支护装置 |
CN117231246B (zh) * | 2023-11-14 | 2024-03-12 | 中国三峡建工(集团)有限公司 | 一种自动化台车施工装备及方法 |
-
1973
- 1973-05-11 DE DE19732323811 patent/DE2323811A1/de not_active Withdrawn
-
1974
- 1974-02-26 CH CH270074A patent/CH586837A5/xx not_active IP Right Cessation
- 1974-03-19 BE BE142146A patent/BE812482A/fr unknown
- 1974-05-09 FR FR7416058A patent/FR2228936B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2323811B2 (fr) | 1978-05-03 |
CH586837A5 (fr) | 1977-04-15 |
BE812482A (fr) | 1974-07-15 |
FR2228936A1 (fr) | 1974-12-06 |
DE2323811A1 (de) | 1974-12-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |