FR2304769A1 - Bouclier pour le percement de tunnels - Google Patents
Bouclier pour le percement de tunnelsInfo
- Publication number
- FR2304769A1 FR2304769A1 FR7508750A FR7508750A FR2304769A1 FR 2304769 A1 FR2304769 A1 FR 2304769A1 FR 7508750 A FR7508750 A FR 7508750A FR 7508750 A FR7508750 A FR 7508750A FR 2304769 A1 FR2304769 A1 FR 2304769A1
- Authority
- FR
- France
- Prior art keywords
- rock
- horizontal
- platform
- shield
- vertical plane
- 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.)
- Granted
Links
- 239000011435 rock Substances 0.000 title abstract 7
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
- E21D9/0692—Cutter drive shields
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 |
|---|---|---|---|
| FR7508750A FR2304769A1 (fr) | 1975-03-20 | 1975-03-20 | Bouclier pour le percement de tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7508750A FR2304769A1 (fr) | 1975-03-20 | 1975-03-20 | Bouclier pour le percement de tunnels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2304769A1 true FR2304769A1 (fr) | 1976-10-15 |
| FR2304769B1 FR2304769B1 (enExample) | 1977-11-18 |
Family
ID=9152837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7508750A Granted FR2304769A1 (fr) | 1975-03-20 | 1975-03-20 | Bouclier pour le percement de tunnels |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2304769A1 (enExample) |
-
1975
- 1975-03-20 FR FR7508750A patent/FR2304769A1/fr active Granted
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2304769B1 (enExample) | 1977-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |