CA821789A - Mill-hole and tunnel lining structure - Google Patents

Mill-hole and tunnel lining structure

Info

Publication number
CA821789A
CA821789A CA821789A CA821789DA CA821789A CA 821789 A CA821789 A CA 821789A CA 821789 A CA821789 A CA 821789A CA 821789D A CA821789D A CA 821789DA CA 821789 A CA821789 A CA 821789A
Authority
CA
Canada
Prior art keywords
mill
hole
tunnel lining
lining structure
tunnel
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
CA821789A
Inventor
Joseph Bardswich
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 CA821789A publication Critical patent/CA821789A/en
Expired legal-status Critical Current

Links

CA821789A Mill-hole and tunnel lining structure Expired CA821789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA821789T

Publications (1)

Publication Number Publication Date
CA821789A true CA821789A (en) 1969-09-02

Family

ID=36299192

Family Applications (1)

Application Number Title Priority Date Filing Date
CA821789A Expired CA821789A (en) Mill-hole and tunnel lining structure

Country Status (1)

Country Link
CA (1) CA821789A (en)

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