AU1416470A - Improvements relating to superstructure inself-advancing roof supports - Google Patents

Improvements relating to superstructure inself-advancing roof supports

Info

Publication number
AU1416470A
AU1416470A AU14164/70A AU1416470A AU1416470A AU 1416470 A AU1416470 A AU 1416470A AU 14164/70 A AU14164/70 A AU 14164/70A AU 1416470 A AU1416470 A AU 1416470A AU 1416470 A AU1416470 A AU 1416470A
Authority
AU
Australia
Prior art keywords
inself
superstructure
improvements relating
roof supports
advancing roof
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
AU14164/70A
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
Priority to AU14164/70A priority Critical patent/AU1416470A/en
Publication of AU1416470A publication Critical patent/AU1416470A/en
Expired legal-status Critical Current

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
    • E21D23/04—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
    • 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
    • E21D23/0017—Pile type supports
    • E21D23/0026—Pile type supports comprising three walking elements
    • 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
    • E21D23/0418—Positioning devices and stabilizing means for the props

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)
AU14164/70A 1970-04-22 1970-04-22 Improvements relating to superstructure inself-advancing roof supports Expired AU1416470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14164/70A AU1416470A (en) 1970-04-22 1970-04-22 Improvements relating to superstructure inself-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU14164/70A AU1416470A (en) 1970-04-22 1970-04-22 Improvements relating to superstructure inself-advancing roof supports

Publications (1)

Publication Number Publication Date
AU1416470A true AU1416470A (en) 1971-10-28

Family

ID=3704375

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14164/70A Expired AU1416470A (en) 1970-04-22 1970-04-22 Improvements relating to superstructure inself-advancing roof supports

Country Status (1)

Country Link
AU (1) AU1416470A (en)

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