GB1294846A - - Google Patents

Info

Publication number
GB1294846A
GB1294846A GB3861270A GB1294846DA GB1294846A GB 1294846 A GB1294846 A GB 1294846A GB 3861270 A GB3861270 A GB 3861270A GB 1294846D A GB1294846D A GB 1294846DA GB 1294846 A GB1294846 A GB 1294846A
Authority
GB
United Kingdom
Prior art keywords
shield
frame
rams
tunnelling
roller
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
GB3861270A
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 GB1294846A publication Critical patent/GB1294846A/en
Expired legal-status Critical Current

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)

Abstract

1294846 Tunnelling machines MOSKOVSKY MEKHANICHESKY ZAVOD GLAVTONNELMETROSTROYA 11 Aug 1970 38612/70 Heading E1F In a tunnelling machine comprising a shield 1, a frame 3 within the shield, a rotary rockcutting member 4 supported by the frame, and hydraulically powered rams 16 located within the shield and carrying roller means 17, the rams, which urge the roller of the means 17 into contact with the rock-cutting member, serve as shock-absorbing power supports for the member.
GB3861270A 1970-08-11 1970-08-11 Expired GB1294846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3861270 1970-08-11

Publications (1)

Publication Number Publication Date
GB1294846A true GB1294846A (en) 1972-11-01

Family

ID=10404576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3861270A Expired GB1294846A (en) 1970-08-11 1970-08-11

Country Status (1)

Country Link
GB (1) GB1294846A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees