NL7214262A - - Google Patents

Info

Publication number
NL7214262A
NL7214262A NL7214262A NL7214262A NL7214262A NL 7214262 A NL7214262 A NL 7214262A NL 7214262 A NL7214262 A NL 7214262A NL 7214262 A NL7214262 A NL 7214262A NL 7214262 A NL7214262 A NL 7214262A
Authority
NL
Netherlands
Application number
NL7214262A
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 filed Critical
Priority to NL7214262A priority Critical patent/NL7214262A/xx
Publication of NL7214262A publication Critical patent/NL7214262A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/005—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit

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)
NL7214262A 1972-10-20 1972-10-20 NL7214262A (Direct)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7214262A NL7214262A (Direct) 1972-10-20 1972-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7214262A NL7214262A (Direct) 1972-10-20 1972-10-20

Publications (1)

Publication Number Publication Date
NL7214262A true NL7214262A (Direct) 1974-04-23

Family

ID=19817198

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7214262A NL7214262A (Direct) 1972-10-20 1972-10-20

Country Status (1)

Country Link
NL (1) NL7214262A (Direct)

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Legal Events

Date Code Title Description
BC A request for examination has been filed
BI The patent application has been withdrawn