GB2073804B - Tunnel shield for use in coal mines and method - Google Patents

Tunnel shield for use in coal mines and method

Info

Publication number
GB2073804B
GB2073804B GB8003719A GB8003719A GB2073804B GB 2073804 B GB2073804 B GB 2073804B GB 8003719 A GB8003719 A GB 8003719A GB 8003719 A GB8003719 A GB 8003719A GB 2073804 B GB2073804 B GB 2073804B
Authority
GB
United Kingdom
Prior art keywords
coal mines
tunnel shield
tunnel
shield
mines
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
GB8003719A
Other versions
GB2073804A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dosco Overseas Engineering Ltd
Original Assignee
Dosco Overseas Engineering 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 Dosco Overseas Engineering Ltd filed Critical Dosco Overseas Engineering Ltd
Priority to GB8003719A priority Critical patent/GB2073804B/en
Publication of GB2073804A publication Critical patent/GB2073804A/en
Application granted granted Critical
Publication of GB2073804B publication Critical patent/GB2073804B/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
    • 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)
GB8003719A 1980-02-04 1980-02-04 Tunnel shield for use in coal mines and method Expired GB2073804B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8003719A GB2073804B (en) 1980-02-04 1980-02-04 Tunnel shield for use in coal mines and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8003719A GB2073804B (en) 1980-02-04 1980-02-04 Tunnel shield for use in coal mines and method

Publications (2)

Publication Number Publication Date
GB2073804A GB2073804A (en) 1981-10-21
GB2073804B true GB2073804B (en) 1983-06-02

Family

ID=10511116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8003719A Expired GB2073804B (en) 1980-02-04 1980-02-04 Tunnel shield for use in coal mines and method

Country Status (1)

Country Link
GB (1) GB2073804B (en)

Also Published As

Publication number Publication date
GB2073804A (en) 1981-10-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee