CA817801A - Shield tunneling method and mechanism - Google Patents

Shield tunneling method and mechanism

Info

Publication number
CA817801A
CA817801A CA817801A CA817801DA CA817801A CA 817801 A CA817801 A CA 817801A CA 817801 A CA817801 A CA 817801A CA 817801D A CA817801D A CA 817801DA CA 817801 A CA817801 A CA 817801A
Authority
CA
Canada
Prior art keywords
shield tunneling
tunneling method
shield
tunneling
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
CA817801A
Inventor
F. Gesta Pierre
J. L. Larrouze Raymond
J. M. Goussault Pierre
F. Winberg Douglas
J. Robbins Richard
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.)
JAMES S ROBBINS AND ASSOCIATES
Original Assignee
JAMES S ROBBINS AND ASSOCIATES
Publication date
Application granted granted Critical
Publication of CA817801A publication Critical patent/CA817801A/en
Expired legal-status Critical Current

Links

CA817801A Shield tunneling method and mechanism Expired CA817801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA817801T

Publications (1)

Publication Number Publication Date
CA817801A true CA817801A (en) 1969-07-15

Family

ID=36290341

Family Applications (1)

Application Number Title Priority Date Filing Date
CA817801A Expired CA817801A (en) Shield tunneling method and mechanism

Country Status (1)

Country Link
CA (1) CA817801A (en)

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