FR2422819A1 - Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members - Google Patents

Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members

Info

Publication number
FR2422819A1
FR2422819A1 FR7810606A FR7810606A FR2422819A1 FR 2422819 A1 FR2422819 A1 FR 2422819A1 FR 7810606 A FR7810606 A FR 7810606A FR 7810606 A FR7810606 A FR 7810606A FR 2422819 A1 FR2422819 A1 FR 2422819A1
Authority
FR
France
Prior art keywords
beams
floor
cushion
members
wooden
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.)
Granted
Application number
FR7810606A
Other languages
French (fr)
Other versions
FR2422819B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7810606A priority Critical patent/FR2422819A1/en
Publication of FR2422819A1 publication Critical patent/FR2422819A1/en
Application granted granted Critical
Publication of FR2422819B3 publication Critical patent/FR2422819B3/fr
Granted 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
    • E21D23/0004—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 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/30—Telescopic props with parts held relatively to each other by friction or gripping by means expanded or contracted by pressure applied through the medium of a fluid or quasi- fluid, e.g. rubber
    • 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
    • E21D15/48—Chocks or the like
    • E21D15/483—Chocks or the like made of flexible containers, e.g. inflatable, with or without reinforcement, e.g. filled with water, backfilling material or the like

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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The mine support has a flexible hydraulic cushion (1) with a height to half horizontal perimeter ratio of less than about 1/8. Between floor (2) and roof (6) members are four vertical adjustable support beams (3) with upper parts (5) sliding inside lower parts (4), locked by clamps (7), and enclosing the cushion. Above and below the cushion are wooden upper beams (14) and lower beams (11) which can adapt to the shape tof the cushion. Under the lower beams is a structure with I beams (12) at right angles to each other, resting on the floor members. Between the upper members and the roof members is another structure made from I beams (16) with welded on locking and guide blocks (17). The bottom parts of the vertical supports are also secured by horizontal tie rods (13).
FR7810606A 1978-04-11 1978-04-11 Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members Granted FR2422819A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7810606A FR2422819A1 (en) 1978-04-11 1978-04-11 Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810606A FR2422819A1 (en) 1978-04-11 1978-04-11 Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members

Publications (2)

Publication Number Publication Date
FR2422819A1 true FR2422819A1 (en) 1979-11-09
FR2422819B3 FR2422819B3 (en) 1980-12-26

Family

ID=9206941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810606A Granted FR2422819A1 (en) 1978-04-11 1978-04-11 Mine support structure enclosing hydraulic cushion - has wooden and metal beams between floor and roof members

Country Status (1)

Country Link
FR (1) FR2422819A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105370307A (en) * 2015-10-08 2016-03-02 山西晋城无烟煤矿业集团有限责任公司 Support technology for coal face to pass through superelevation section
CN107178390A (en) * 2017-07-26 2017-09-19 淮南矿业(集团)有限责任公司 A kind of moving lift type coal mine gob filling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105370307A (en) * 2015-10-08 2016-03-02 山西晋城无烟煤矿业集团有限责任公司 Support technology for coal face to pass through superelevation section
CN105370307B (en) * 2015-10-08 2018-12-11 山西晋城无烟煤矿业集团有限责任公司 Coal working face crosses freeboard section support process
CN107178390A (en) * 2017-07-26 2017-09-19 淮南矿业(集团)有限责任公司 A kind of moving lift type coal mine gob filling device
CN107178390B (en) * 2017-07-26 2023-07-25 淮南矿业(集团)有限责任公司 Movable lifting type coal mine goaf filling device

Also Published As

Publication number Publication date
FR2422819B3 (en) 1980-12-26

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Legal Events

Date Code Title Description
ST Notification of lapse