IT1263921B - Shield tunnelling machine - Google Patents
Shield tunnelling machineInfo
- Publication number
- IT1263921B IT1263921B ITMI930282A ITMI930282A IT1263921B IT 1263921 B IT1263921 B IT 1263921B IT MI930282 A ITMI930282 A IT MI930282A IT MI930282 A ITMI930282 A IT MI930282A IT 1263921 B IT1263921 B IT 1263921B
- Authority
- IT
- Italy
- Prior art keywords
- shield
- segments
- operating position
- tunnelling machine
- shield tunnelling
- Prior art date
Links
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
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
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/0875—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
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)
- Manufacturing Of Electric Cables (AREA)
- Paper (AREA)
Abstract
In a machine 1 for tunnelling by shield with a shield 7 divided in the perimeter direction into segments, joined together by links, in which portions of the shield 7 can be expanded via an actuator 23 against the wall being demolished, two free ends of two segments, placed close together at ridges, are held in an operating position of the shield 7 by means of a locking element 19 engaged by geometric coupling, so that it is possible to ensure, by simple auxiliary means and without the need for expensive installation devices, an operating position in which the shield is mechanically secured in its predetermined configuration and position. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0030292A AT397692B (en) | 1992-02-19 | 1992-02-19 | SHIELD DRIVING MACHINE |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI930282A0 ITMI930282A0 (en) | 1993-02-16 |
ITMI930282A1 ITMI930282A1 (en) | 1994-08-16 |
IT1263921B true IT1263921B (en) | 1996-09-05 |
Family
ID=3486947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI930282A IT1263921B (en) | 1992-02-19 | 1993-02-16 | Shield tunnelling machine |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT397692B (en) |
IT (1) | IT1263921B (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2746726A1 (en) * | 1977-10-18 | 1979-04-19 | Gewerk Eisenhuette Westfalia | LIFTING BLADE |
DE2851742C2 (en) * | 1978-11-30 | 1986-02-06 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Spreading shield |
DE2854767C3 (en) * | 1978-12-19 | 1982-03-04 | R. Schäfer & Urbach GmbH, 4030 Ratingen | Dismountable jacking shield consisting of several segments and a device for assembling and dismantling this shield |
DE2952529C2 (en) * | 1979-12-28 | 1984-02-09 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Shield tunneling device |
DE3113514C2 (en) * | 1981-04-03 | 1983-12-29 | H. Bieri AG Maschinenfabrik, 3097 Liebefeld, Bern | Locking device for the extension ram of a hydraulic cylinder |
-
1992
- 1992-02-19 AT AT0030292A patent/AT397692B/en not_active IP Right Cessation
-
1993
- 1993-02-16 IT ITMI930282A patent/IT1263921B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI930282A1 (en) | 1994-08-16 |
ATA30292A (en) | 1993-10-15 |
ITMI930282A0 (en) | 1993-02-16 |
AT397692B (en) | 1994-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970131 |