GB2154629B - Yieldable stilt - Google Patents

Yieldable stilt

Info

Publication number
GB2154629B
GB2154629B GB08503583A GB8503583A GB2154629B GB 2154629 B GB2154629 B GB 2154629B GB 08503583 A GB08503583 A GB 08503583A GB 8503583 A GB8503583 A GB 8503583A GB 2154629 B GB2154629 B GB 2154629B
Authority
GB
United Kingdom
Prior art keywords
stilt
yieldable
yieldable stilt
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
GB08503583A
Other versions
GB2154629A (en
GB8503583D0 (en
Inventor
David Robert Little
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.)
HOLYWELL ENG Ltd
Original Assignee
HOLYWELL ENG 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 HOLYWELL ENG Ltd filed Critical HOLYWELL ENG Ltd
Publication of GB8503583D0 publication Critical patent/GB8503583D0/en
Publication of GB2154629A publication Critical patent/GB2154629A/en
Application granted granted Critical
Publication of GB2154629B publication Critical patent/GB2154629B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/30—Bases for lower arch members
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/22—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
GB08503583A 1984-02-23 1985-02-12 Yieldable stilt Expired GB2154629B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848404807A GB8404807D0 (en) 1984-02-23 1984-02-23 Yieldable stilt for mine roadways

Publications (3)

Publication Number Publication Date
GB8503583D0 GB8503583D0 (en) 1985-03-13
GB2154629A GB2154629A (en) 1985-09-11
GB2154629B true GB2154629B (en) 1987-05-28

Family

ID=10557097

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848404807A Pending GB8404807D0 (en) 1984-02-23 1984-02-23 Yieldable stilt for mine roadways
GB08503583A Expired GB2154629B (en) 1984-02-23 1985-02-12 Yieldable stilt

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848404807A Pending GB8404807D0 (en) 1984-02-23 1984-02-23 Yieldable stilt for mine roadways

Country Status (2)

Country Link
CA (1) CA1224634A (en)
GB (2) GB8404807D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170096896A1 (en) * 2014-06-04 2017-04-06 Officine Maccaferri Italia S.R.L. Rib for supporting and consolidating an excavation and method for installing a structure to support and consolidate an excavation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB814350A (en) * 1956-12-13 1959-06-03 Karl Theodor Jasper Improvements in roof supports for mine workings
GB966592A (en) * 1961-11-18 1964-08-12 Hayden Nilos Ltd Improvements in or relating to mine shoring
GB1371541A (en) * 1972-01-07 1974-10-23 Hayden Nilos Conflow Ltd Yieldable stilts for mine roof supports
GB1371542A (en) * 1972-01-07 1974-10-23 Hayden Nilos Conflow Ltd Yieldable stilts for mine roof supports
GB1586837A (en) * 1977-10-26 1981-03-25 Holywell Eng Ltd Yielding tubular stilts for mine roadway supports
GB2050464A (en) * 1979-05-25 1981-01-07 Coal Industry Patents Ltd Stilts for Use With Underground Mine Roof Supports

Also Published As

Publication number Publication date
CA1224634A (en) 1987-07-28
GB2154629A (en) 1985-09-11
GB8404807D0 (en) 1984-03-28
GB8503583D0 (en) 1985-03-13

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Legal Events

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

Effective date: 19940212