GB2097454B - Mine roof support - Google Patents

Mine roof support

Info

Publication number
GB2097454B
GB2097454B GB8211709A GB8211709A GB2097454B GB 2097454 B GB2097454 B GB 2097454B GB 8211709 A GB8211709 A GB 8211709A GB 8211709 A GB8211709 A GB 8211709A GB 2097454 B GB2097454 B GB 2097454B
Authority
GB
United Kingdom
Prior art keywords
roof support
mine roof
mine
support
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
GB8211709A
Other versions
GB2097454A (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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB8211709A priority Critical patent/GB2097454B/en
Publication of GB2097454A publication Critical patent/GB2097454A/en
Application granted granted Critical
Publication of GB2097454B publication Critical patent/GB2097454B/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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • E21D23/0034—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 comprising a goaf shield articulated to a base member
    • E21D23/0043—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 comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to 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
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
GB8211709A 1981-04-25 1982-04-22 Mine roof support Expired GB2097454B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8211709A GB2097454B (en) 1981-04-25 1982-04-22 Mine roof support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8112825 1981-04-25
GB8211709A GB2097454B (en) 1981-04-25 1982-04-22 Mine roof support

Publications (2)

Publication Number Publication Date
GB2097454A GB2097454A (en) 1982-11-03
GB2097454B true GB2097454B (en) 1985-06-05

Family

ID=26279248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8211709A Expired GB2097454B (en) 1981-04-25 1982-04-22 Mine roof support

Country Status (1)

Country Link
GB (1) GB2097454B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979695B (en) * 2018-09-12 2020-09-15 天地科技股份有限公司 Unilateral offset type hydraulic support combination
CN109026108B (en) * 2018-09-14 2019-10-01 天地科技股份有限公司 A kind of intelligent adaptive advanced hydraulic support

Also Published As

Publication number Publication date
GB2097454A (en) 1982-11-03

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Legal Events

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