BE791617A - Bouclier pour le creusement de tunnels - Google Patents

Bouclier pour le creusement de tunnels

Info

Publication number
BE791617A
BE791617A BE791617DA BE791617A BE 791617 A BE791617 A BE 791617A BE 791617D A BE791617D A BE 791617DA BE 791617 A BE791617 A BE 791617A
Authority
BE
Belgium
Prior art keywords
shield
tunnel digging
digging
tunnel
Prior art date
Application number
Other languages
English (en)
Original Assignee
M & H Tunnel & Civil Engineeri
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.)
Publication date
Publication of BE791617A publication Critical patent/BE791617A/fr

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

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)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
BE791617D 1971-11-20 Bouclier pour le creusement de tunnels BE791617A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5400371 1971-11-20

Publications (1)

Publication Number Publication Date
BE791617A true BE791617A (fr) 1973-03-16

Family

ID=10469653

Family Applications (1)

Application Number Title Priority Date Filing Date
BE791617D BE791617A (fr) 1971-11-20 Bouclier pour le creusement de tunnels

Country Status (3)

Country Link
BE (1) BE791617A (fr)
DE (1) DE2256743A1 (fr)
FR (1) FR2160686B3 (fr)

Also Published As

Publication number Publication date
FR2160686A1 (fr) 1973-06-29
DE2256743A1 (de) 1973-05-24
FR2160686B3 (fr) 1976-01-09

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