BR7701658A - Aperfeicoamentos em/ou relativos e ascudos mecanicos giratorios de perfuracao de tuneis e metodo de sua utilizacao - Google Patents

Aperfeicoamentos em/ou relativos e ascudos mecanicos giratorios de perfuracao de tuneis e metodo de sua utilizacao

Info

Publication number
BR7701658A
BR7701658A BR1658/77A BR7701658A BR7701658A BR 7701658 A BR7701658 A BR 7701658A BR 1658/77 A BR1658/77 A BR 1658/77A BR 7701658 A BR7701658 A BR 7701658A BR 7701658 A BR7701658 A BR 7701658A
Authority
BR
Brazil
Prior art keywords
relating
mechanical rotating
tunnels
drilling
rotating floors
Prior art date
Application number
BR1658/77A
Other languages
English (en)
Portuguese (pt)
Inventor
M Richardson
Original Assignee
Marcon Int Ltd
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 by Marcon Int Ltd filed Critical Marcon Int Ltd
Publication of BR7701658A publication Critical patent/BR7701658A/pt

Links

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
    • E21D9/0879—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 the shield being provided with devices for lining the tunnel, e.g. shuttering

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)
BR1658/77A 1976-03-22 1977-03-18 Aperfeicoamentos em/ou relativos e ascudos mecanicos giratorios de perfuracao de tuneis e metodo de sua utilizacao BR7701658A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11371/76A GB1554221A (en) 1976-03-22 1976-03-22 Mechanical full face rotary tunnel boring shields

Publications (1)

Publication Number Publication Date
BR7701658A true BR7701658A (pt) 1978-02-08

Family

ID=9985017

Family Applications (1)

Application Number Title Priority Date Filing Date
BR1658/77A BR7701658A (pt) 1976-03-22 1977-03-18 Aperfeicoamentos em/ou relativos e ascudos mecanicos giratorios de perfuracao de tuneis e metodo de sua utilizacao

Country Status (3)

Country Link
JP (1) JPS52138331A (enExample)
BR (1) BR7701658A (enExample)
GB (1) GB1554221A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7194524B2 (ja) 2018-06-25 2022-12-22 日本酢ビ・ポバール株式会社 コーティング組成物並びに経口固形剤及びその製造方法

Also Published As

Publication number Publication date
GB1554221A (en) 1979-10-17
JPS52138331A (en) 1977-11-18
JPS569639B2 (enExample) 1981-03-03

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