CA663743A - Apparatus for driving tunnels - Google Patents

Apparatus for driving tunnels

Info

Publication number
CA663743A
CA663743A CA663743A CA663743DA CA663743A CA 663743 A CA663743 A CA 663743A CA 663743 A CA663743 A CA 663743A CA 663743D A CA663743D A CA 663743DA CA 663743 A CA663743 A CA 663743A
Authority
CA
Canada
Prior art keywords
driving tunnels
tunnels
driving
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
CA663743A
Inventor
F. Kemper Maxwell
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
Publication date
Application granted granted Critical
Publication of CA663743A publication Critical patent/CA663743A/en
Expired legal-status Critical Current

Links

CA663743A Apparatus for driving tunnels Expired CA663743A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA663743T

Publications (1)

Publication Number Publication Date
CA663743A true CA663743A (en) 1963-05-28

Family

ID=35957861

Family Applications (1)

Application Number Title Priority Date Filing Date
CA663743A Expired CA663743A (en) Apparatus for driving tunnels

Country Status (1)

Country Link
CA (1) CA663743A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111411994A (en) * 2020-04-21 2020-07-14 中铁二院工程集团有限责任公司 Bridge spanning separation type bearing structure penetrating through giant karst cave and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111411994A (en) * 2020-04-21 2020-07-14 中铁二院工程集团有限责任公司 Bridge spanning separation type bearing structure penetrating through giant karst cave and construction method thereof

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