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FR1169027A - Support system for mining operations - Google Patents

Support system for mining operations

Info

Publication number
FR1169027A
FR1169027A FR1169027DA FR1169027A FR 1169027 A FR1169027 A FR 1169027A FR 1169027D A FR1169027D A FR 1169027DA FR 1169027 A FR1169027 A FR 1169027A
Authority
FR
France
Prior art keywords
support system
mining operations
mining
operations
support
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
Other languages
French (fr)
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.)
Mining Engineering Co Ltd MECO
Original Assignee
Mining Engineering Co Ltd MECO
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 Mining Engineering Co Ltd MECO filed Critical Mining Engineering Co Ltd MECO
Application granted granted Critical
Publication of FR1169027A publication Critical patent/FR1169027A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
    • E21D15/587—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded by means of power accumulators to be pre-charged by rock pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR1169027D 1955-12-23 1956-12-21 Support system for mining operations Expired FR1169027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1169027X 1955-12-23

Publications (1)

Publication Number Publication Date
FR1169027A true FR1169027A (en) 1958-12-19

Family

ID=10879307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1169027D Expired FR1169027A (en) 1955-12-23 1956-12-21 Support system for mining operations

Country Status (1)

Country Link
FR (1) FR1169027A (en)

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