GB2045312B - Yieldable mine roof supports - Google Patents

Yieldable mine roof supports

Info

Publication number
GB2045312B
GB2045312B GB8006273A GB8006273A GB2045312B GB 2045312 B GB2045312 B GB 2045312B GB 8006273 A GB8006273 A GB 8006273A GB 8006273 A GB8006273 A GB 8006273A GB 2045312 B GB2045312 B GB 2045312B
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
yieldable mine
yieldable
supports
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
GB8006273A
Other versions
GB2045312A (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.)
Hayden Nilos Conflow Ltd
Original Assignee
Hayden Nilos Conflow 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 Hayden Nilos Conflow Ltd filed Critical Hayden Nilos Conflow Ltd
Priority to GB8006273A priority Critical patent/GB2045312B/en
Publication of GB2045312A publication Critical patent/GB2045312A/en
Application granted granted Critical
Publication of GB2045312B publication Critical patent/GB2045312B/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
GB8006273A 1979-03-09 1980-02-25 Yieldable mine roof supports Expired GB2045312B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8006273A GB2045312B (en) 1979-03-09 1980-02-25 Yieldable mine roof supports

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7908488 1979-03-09
GB8006273A GB2045312B (en) 1979-03-09 1980-02-25 Yieldable mine roof supports

Publications (2)

Publication Number Publication Date
GB2045312A GB2045312A (en) 1980-10-29
GB2045312B true GB2045312B (en) 1983-05-11

Family

ID=26270864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8006273A Expired GB2045312B (en) 1979-03-09 1980-02-25 Yieldable mine roof supports

Country Status (1)

Country Link
GB (1) GB2045312B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211870B (en) * 1987-11-04 1992-01-15 Ward Engineering Limited Stilt
US5015125A (en) * 1990-04-05 1991-05-14 Seegmiller Ben L Yieldable mine post
US5400994A (en) * 1991-01-22 1995-03-28 Dyckerhoff & Widmann Ag Of Munich Yieldable roof support system
US5228810A (en) * 1991-03-22 1993-07-20 Seegmiller Ben L Mine support post

Also Published As

Publication number Publication date
GB2045312A (en) 1980-10-29

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Legal Events

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