BE812004A - Unite de soutenement - Google Patents

Unite de soutenement

Info

Publication number
BE812004A
BE812004A BE141756A BE141756A BE812004A BE 812004 A BE812004 A BE 812004A BE 141756 A BE141756 A BE 141756A BE 141756 A BE141756 A BE 141756A BE 812004 A BE812004 A BE 812004A
Authority
BE
Belgium
Prior art keywords
support unit
support
unit
Prior art date
Application number
BE141756A
Other languages
English (en)
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 BE812004A publication Critical patent/BE812004A/fr

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
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium 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)
BE141756A 1973-03-07 1974-03-07 Unite de soutenement BE812004A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports

Publications (1)

Publication Number Publication Date
BE812004A true BE812004A (fr) 1974-07-01

Family

ID=25566046

Family Applications (1)

Application Number Title Priority Date Filing Date
BE141756A BE812004A (fr) 1973-03-07 1974-03-07 Unite de soutenement

Country Status (2)

Country Link
BE (1) BE812004A (fr)
ZA (1) ZA731578B (fr)

Also Published As

Publication number Publication date
ZA731578B (en) 1974-09-25

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