DE124204C - - Google Patents

Info

Publication number
DE124204C
DE124204C DENDAT124204D DE124204DA DE124204C DE 124204 C DE124204 C DE 124204C DE NDAT124204 D DENDAT124204 D DE NDAT124204D DE 124204D A DE124204D A DE 124204DA DE 124204 C DE124204 C DE 124204C
Authority
DE
Germany
Prior art keywords
groups
chain
tunnels
drill
shaft
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.)
Active
Application number
DENDAT124204D
Other languages
German (de)
English (en)
Publication of DE124204C publication Critical patent/DE124204C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1053Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)
DENDAT124204D Active DE124204C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE124204C true DE124204C (enrdf_load_stackoverflow)

Family

ID=393010

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT124204D Active DE124204C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE124204C (enrdf_load_stackoverflow)

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