CA1108420A - Etancons de toit de mine - Google Patents

Etancons de toit de mine

Info

Publication number
CA1108420A
CA1108420A CA340,822A CA340822A CA1108420A CA 1108420 A CA1108420 A CA 1108420A CA 340822 A CA340822 A CA 340822A CA 1108420 A CA1108420 A CA 1108420A
Authority
CA
Canada
Prior art keywords
shield
support
roof beam
roof
rams
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
CA340,822A
Other languages
English (en)
Inventor
John C. Smith
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.)
Fletcher Sutcliffe Wild Ltd
Original Assignee
Fletcher Sutcliffe Wild 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 Fletcher Sutcliffe Wild Ltd filed Critical Fletcher Sutcliffe Wild Ltd
Application granted granted Critical
Publication of CA1108420A publication Critical patent/CA1108420A/fr
Expired legal-status Critical Current

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
    • E21D23/0004—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 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
CA340,822A 1978-11-28 1979-11-28 Etancons de toit de mine Expired CA1108420A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7846370 1978-11-28
GB7846370 1978-11-28

Publications (1)

Publication Number Publication Date
CA1108420A true CA1108420A (fr) 1981-09-08

Family

ID=10501370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA340,822A Expired CA1108420A (fr) 1978-11-28 1979-11-28 Etancons de toit de mine

Country Status (4)

Country Link
AU (1) AU529191B2 (fr)
CA (1) CA1108420A (fr)
DE (1) DE2947654A1 (fr)
IN (1) IN151643B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233358A (zh) * 2021-12-29 2022-03-25 安阳永安贺驼煤矿有限公司 回采巷道顶部囊袋式充填支架装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850073A1 (de) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Grubenausbau, insbesondere strebausbau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114233358A (zh) * 2021-12-29 2022-03-25 安阳永安贺驼煤矿有限公司 回采巷道顶部囊袋式充填支架装置
CN114233358B (zh) * 2021-12-29 2024-04-12 安阳永安贺驼煤矿有限公司 回采巷道顶部囊袋式充填支架装置

Also Published As

Publication number Publication date
DE2947654C2 (fr) 1988-03-17
AU5320279A (en) 1980-05-29
AU529191B2 (en) 1983-05-26
DE2947654A1 (de) 1980-06-04
IN151643B (fr) 1983-06-18

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Legal Events

Date Code Title Description
MKEX Expiry