ZA75367B - Mine roof support - Google Patents

Mine roof support

Info

Publication number
ZA75367B
ZA75367B ZA00750367A ZA75367A ZA75367B ZA 75367 B ZA75367 B ZA 75367B ZA 00750367 A ZA00750367 A ZA 00750367A ZA 75367 A ZA75367 A ZA 75367A ZA 75367 B ZA75367 B ZA 75367B
Authority
ZA
South Africa
Prior art keywords
roof support
mine roof
mine
support
roof
Prior art date
Application number
ZA00750367A
Inventor
J Walker
A Peacock
D Rutherford
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
Publication of ZA75367B publication Critical patent/ZA75367B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
ZA00750367A 1974-01-19 1975-01-20 Mine roof support ZA75367B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2628/74A GB1512001A (en) 1974-01-19 1974-01-19 Mine roof support

Publications (1)

Publication Number Publication Date
ZA75367B true ZA75367B (en) 1976-03-31

Family

ID=9742905

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00750367A ZA75367B (en) 1974-01-19 1975-01-20 Mine roof support

Country Status (4)

Country Link
BE (1) BE824477A (en)
DE (1) DE2502109B2 (en)
GB (1) GB1512001A (en)
ZA (1) ZA75367B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568967A (en) * 1976-02-06 1980-06-11 Dowty Mining Equipment Ltd Mine roof support
DE2629788C3 (en) * 1976-07-02 1981-08-13 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Device for dust extraction in underground mining operations using the hollow profiles of the support frames as extraction lines
DE2646563C3 (en) * 1976-10-15 1979-08-09 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Expansion for the hem area of a longwall
DE2732339C2 (en) * 1977-07-16 1990-03-29 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Longwall mining, especially longwall mining
DE2808205C2 (en) * 1978-02-25 1985-10-10 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulic control for a gap cover arranged on the cap or on the breakage shield of a walking support
CN109869175A (en) * 2019-03-15 2019-06-11 济宁矿业集团有限公司霄云煤矿 A kind of hybrid advanced support method of fully-mechanized mining working
CN109956396A (en) * 2019-04-19 2019-07-02 安徽省矿业机电装备有限责任公司 Modular bracket hoisting structure
CN113653524A (en) * 2021-09-22 2021-11-16 中国煤炭科工集团太原研究院有限公司 Broken roof is synthesized and is adopted face hydraulic support withdrawal triangular space temporary support device
CN115288518B (en) * 2022-09-20 2023-07-07 湖北交建总承包公路工程有限公司 Safety support protection device for municipal foundation pit construction

Also Published As

Publication number Publication date
DE2502109A1 (en) 1975-07-24
DE2502109B2 (en) 1978-10-05
BE824477A (en) 1975-05-15
GB1512001A (en) 1978-05-24

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