ZA728751B - Improvements in tunnelling - Google Patents

Improvements in tunnelling

Info

Publication number
ZA728751B
ZA728751B ZA728751A ZA728751A ZA728751B ZA 728751 B ZA728751 B ZA 728751B ZA 728751 A ZA728751 A ZA 728751A ZA 728751 A ZA728751 A ZA 728751A ZA 728751 B ZA728751 B ZA 728751B
Authority
ZA
South Africa
Prior art keywords
tunnelling
Prior art date
Application number
ZA728751A
Inventor
A Schiess
Original Assignee
A Schiess
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 A Schiess filed Critical A Schiess
Priority to ZA728751A priority Critical patent/ZA728751B/en
Priority to GB5716373A priority patent/GB1422668A/en
Priority to DE2361565A priority patent/DE2361565A1/en
Publication of ZA728751B publication Critical patent/ZA728751B/en

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
    • E21D9/005—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)
  • Excavating Of Shafts Or Tunnels (AREA)
ZA728751A 1972-12-09 1972-12-09 Improvements in tunnelling ZA728751B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ZA728751A ZA728751B (en) 1972-12-09 1972-12-09 Improvements in tunnelling
GB5716373A GB1422668A (en) 1972-12-09 1973-12-10 Tunnelling
DE2361565A DE2361565A1 (en) 1972-12-09 1973-12-11 PROCEDURE AND DEVICE FOR TUNNEL EXPANSION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA728751A ZA728751B (en) 1972-12-09 1972-12-09 Improvements in tunnelling

Publications (1)

Publication Number Publication Date
ZA728751B true ZA728751B (en) 1974-03-27

Family

ID=25565719

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728751A ZA728751B (en) 1972-12-09 1972-12-09 Improvements in tunnelling

Country Status (3)

Country Link
DE (1) DE2361565A1 (en)
GB (1) GB1422668A (en)
ZA (1) ZA728751B (en)

Also Published As

Publication number Publication date
DE2361565A1 (en) 1974-06-12
GB1422668A (en) 1976-01-28

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