DRIVING BART'S TOUGHEST TUNNEL

THE TWIN SHIELD-DRIVEN TUNNELS CONNECTING THE MARKET STREET SUBWAY AND THE TRANS-BAY TUBE OF THE SAN FRANCISCO BAY AREA RAPID TRANSIT DISTRICT PROVIDED PLENTY OF PROBLEMS FOR BOTH THE CONTRACTOR AND THE ENGINEER. PRESSURE RANGED UP TO 36 PSIG., AND MINERS HAD TO PROBE CONTINUOUSLY FOR PILING. THIS ARTICLE WAS ADAPTED FROM A PAPER THE AUTHOR PRESENTED AT THE SECOND SYMPOSIUM ON RAPID EXCAVATION, HELD OCTOBER 16-17, 1969, AT SACRAMENTO STATE COLLEGE. /AUTHOR/

  • Supplemental Notes:
    • Vol 45, No 1, PP 39-43
  • Authors:
    • Whiteman, J C
  • Publication Date: 1970-1

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Filing Info

  • Accession Number: 00215252
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 13 1970 12:00AM