FR1346011A - Mining process - Google Patents

Mining process

Info

Publication number
FR1346011A
FR1346011A FR922856A FR922856A FR1346011A FR 1346011 A FR1346011 A FR 1346011A FR 922856 A FR922856 A FR 922856A FR 922856 A FR922856 A FR 922856A FR 1346011 A FR1346011 A FR 1346011A
Authority
FR
France
Prior art keywords
mining process
mining
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
FR922856A
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.)
PPG Industries Inc
Original Assignee
Pittsburgh Plate Glass Co
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 Pittsburgh Plate Glass Co filed Critical Pittsburgh Plate Glass Co
Priority to FR922856A priority Critical patent/FR1346011A/en
Application granted granted Critical
Publication of FR1346011A publication Critical patent/FR1346011A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D1/00—Sinking shafts
    • E21D1/10—Preparation of the ground
    • E21D1/12—Preparation of the ground by freezing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR922856A 1963-01-28 1963-01-28 Mining process Expired FR1346011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR922856A FR1346011A (en) 1963-01-28 1963-01-28 Mining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR922856A FR1346011A (en) 1963-01-28 1963-01-28 Mining process

Publications (1)

Publication Number Publication Date
FR1346011A true FR1346011A (en) 1963-12-13

Family

ID=8795706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR922856A Expired FR1346011A (en) 1963-01-28 1963-01-28 Mining process

Country Status (1)

Country Link
FR (1) FR1346011A (en)

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