ES253938Y -  A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS. - Google Patents

 A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS.

Info

Publication number
ES253938Y
ES253938Y ES1979253938U ES253938U ES253938Y ES 253938 Y ES253938 Y ES 253938Y ES 1979253938 U ES1979253938 U ES 1979253938U ES 253938 U ES253938 U ES 253938U ES 253938 Y ES253938 Y ES 253938Y
Authority
ES
Spain
Prior art keywords
perforation
blades
shield
underground works
underground
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.)
Expired
Application number
ES1979253938U
Other languages
Spanish (es)
Other versions
ES253938U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of ES253938U publication Critical patent/ES253938U/en
Application granted granted Critical
Publication of ES253938Y publication Critical patent/ES253938Y/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
ES1979253938U 1978-11-20 1979-11-19  A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS. Expired ES253938Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782850270 DE2850270C2 (en) 1978-11-20 1978-11-20 Propulsion shield for driving tunnels, underground channels or the like.

Publications (2)

Publication Number Publication Date
ES253938U ES253938U (en) 1981-09-01
ES253938Y true ES253938Y (en) 1982-02-16

Family

ID=6055136

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1979253938U Expired ES253938Y (en) 1978-11-20 1979-11-19  A SHIELD OF BLADES FOR THE PERFORATION OF UNDERGROUND WORKS.

Country Status (4)

Country Link
JP (1) JPS5581999A (en)
AT (1) AT362416B (en)
DE (1) DE2850270C2 (en)
ES (1) ES253938Y (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206717A1 (en) * 1982-02-25 1983-09-01 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen KNIFE CYLINDER CONNECTION FOR KNIFE BLADES
JP6568894B2 (en) * 2017-05-26 2019-08-28 植村　誠 Open shield machine
CN112222658B (en) * 2020-09-28 2022-09-30 中船黄埔文冲船舶有限公司 Embedded grotto building method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461241B2 (en) * 1974-12-23 1976-11-25 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen PRE-PRESSABLE CYLINDRICAL LINING FOR TUNNEL, CLUTCH OR DRAFT DRIVES ETC., IN PARTICULAR SHELVING SIGN
DE2743046A1 (en) * 1977-09-24 1979-04-05 Gewerk Eisenhuette Westfalia LIFTING SIGN FOR DRIVING TUNNELS, CLOUDS OR DGL.

Also Published As

Publication number Publication date
JPS5581999A (en) 1980-06-20
ES253938U (en) 1981-09-01
DE2850270A1 (en) 1980-05-29
DE2850270C2 (en) 1986-06-26
AT362416B (en) 1981-05-25
ATA625279A (en) 1980-10-15

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