PL123664B1 - Wall cavity lining - Google Patents

Wall cavity lining Download PDF

Info

Publication number
PL123664B1
PL123664B1 PL21986879A PL21986879A PL123664B1 PL 123664 B1 PL123664 B1 PL 123664B1 PL 21986879 A PL21986879 A PL 21986879A PL 21986879 A PL21986879 A PL 21986879A PL 123664 B1 PL123664 B1 PL 123664B1
Authority
PL
Poland
Prior art keywords
canopy
wall
casing
supported
wjmaniyecsiio
Prior art date
Application number
PL21986879A
Other languages
English (en)
Polish (pl)
Other versions
PL219868A1 (de
Inventor
Edward Janik
Wojciech Skoczynski
Jozef Kazek
Wincenty Pretor
Stanislaw Mroczek
Stanislaw Borkowski
Adolf Drewniak
Original Assignee
Ct Kt Maszyn Gorniczych Komag
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 Ct Kt Maszyn Gorniczych Komag filed Critical Ct Kt Maszyn Gorniczych Komag
Priority to PL21986879A priority Critical patent/PL123664B1/pl
Priority to GB8033874A priority patent/GB2063976A/en
Priority to DE19803041929 priority patent/DE3041929A1/de
Publication of PL219868A1 publication Critical patent/PL219868A1/xx
Publication of PL123664B1 publication Critical patent/PL123664B1/pl

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Lining And Supports For Tunnels (AREA)
PL21986879A 1979-11-23 1979-11-23 Wall cavity lining PL123664B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL21986879A PL123664B1 (en) 1979-11-23 1979-11-23 Wall cavity lining
GB8033874A GB2063976A (en) 1979-11-23 1980-10-21 Mine Roof Support Unit for Longwall Recesses
DE19803041929 DE3041929A1 (de) 1979-11-23 1980-11-06 Bergbau-nischenstrebausbau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL21986879A PL123664B1 (en) 1979-11-23 1979-11-23 Wall cavity lining

Publications (2)

Publication Number Publication Date
PL219868A1 PL219868A1 (de) 1981-06-19
PL123664B1 true PL123664B1 (en) 1982-11-30

Family

ID=19999613

Family Applications (1)

Application Number Title Priority Date Filing Date
PL21986879A PL123664B1 (en) 1979-11-23 1979-11-23 Wall cavity lining

Country Status (3)

Country Link
DE (1) DE3041929A1 (de)
GB (1) GB2063976A (de)
PL (1) PL123664B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127885B (en) * 1982-09-24 1986-02-26 Dobson Park Ind Mine roof support
GB8707235D0 (en) * 1987-03-26 1987-04-29 Dowty Hucknall Ltd Roof support
CN101985887B (zh) * 2010-09-14 2012-07-04 中国矿业大学 采煤工作面端头支护充填转载系统
CN104533492B (zh) * 2014-12-29 2017-05-17 张海童 掘进工作面临时支护液压支架
CN113653523B (zh) * 2021-09-22 2023-09-12 中国煤炭科工集团太原研究院有限公司 液压支架快速回撤的三角区宽型临时支护装置及支护方法

Also Published As

Publication number Publication date
PL219868A1 (de) 1981-06-19
DE3041929A1 (de) 1981-05-27
GB2063976A (en) 1981-06-10

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