FR94204E - Improvement in the construction of underground galleries and their subsequent ventilation. - Google Patents

Improvement in the construction of underground galleries and their subsequent ventilation.

Info

Publication number
FR94204E
FR94204E FR38005074A FR38005074A FR94204E FR 94204 E FR94204 E FR 94204E FR 38005074 A FR38005074 A FR 38005074A FR 38005074 A FR38005074 A FR 38005074A FR 94204 E FR94204 E FR 94204E
Authority
FR
France
Prior art keywords
improvement
construction
subsequent ventilation
underground galleries
galleries
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
FR38005074A
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.)
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 FR38005074A priority Critical patent/FR94204E/en
Priority to CH831767A priority patent/CH451232A/en
Application granted granted Critical
Publication of FR94204E publication Critical patent/FR94204E/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/006—Ventilation at the working face of galleries or tunnels

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)
  • Ventilation (AREA)
FR38005074A 1966-06-18 1967-03-14 Improvement in the construction of underground galleries and their subsequent ventilation. Expired FR94204E (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR38005074A FR94204E (en) 1966-06-18 1967-03-14 Improvement in the construction of underground galleries and their subsequent ventilation.
CH831767A CH451232A (en) 1967-03-14 1967-06-13 Construction method of at least two parallel galleries

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR38004959A FR1493580A (en) 1966-06-18 1966-06-18 Improvements for the construction of underground galleries and their subsequent ventilation
FR38005074A FR94204E (en) 1966-06-18 1967-03-14 Improvement in the construction of underground galleries and their subsequent ventilation.

Publications (1)

Publication Number Publication Date
FR94204E true FR94204E (en) 1969-07-18

Family

ID=9692850

Family Applications (2)

Application Number Title Priority Date Filing Date
FR38004959A Expired FR1493580A (en) 1966-06-18 1966-06-18 Improvements for the construction of underground galleries and their subsequent ventilation
FR38005074A Expired FR94204E (en) 1966-06-18 1967-03-14 Improvement in the construction of underground galleries and their subsequent ventilation.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR38004959A Expired FR1493580A (en) 1966-06-18 1966-06-18 Improvements for the construction of underground galleries and their subsequent ventilation

Country Status (2)

Country Link
CH (1) CH467908A (en)
FR (2) FR1493580A (en)

Also Published As

Publication number Publication date
FR1493580A (en) 1967-09-01
CH467908A (en) 1969-01-31

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