STRUCTURAL BEHAVIOR OF PRECAST CONCRETE TUNNEL LINERS

STRUCTURAL TESTS WERE CONDUCTED ON PRECAST CONCRETE SEGMENTAL TUNNEL LINERS CONSIDERED FOR USE IN SUBWAY TUNNELS OF THE SAN FRANCISCO BAY AREA RAPID TRANSIT DISTRICT. EACH TUNNEL LINER RING CONSISTED OF SEVEN SEGMENTS WHICH FORMED 30 INCHES OF CIRCULAR TUNNEL LINER WHEN BOLTED TOGETHER. TWO LINER RINGS WERE TESTED, WITH LOADS APPLIED TO THE OUTER SURFACE OF THE RINGS AT 12 POINTS. THE BEHAVIOR OF THE RINGS WAS GOOD. AT THE MAXIMUM LOAD LEVELS ATTAINABLE, ONLY A SMALL AMOUNT OF CRACKING HAD OCCURRED. THE ACCEPTANCE CRITERION WAS THAT THE RINGS SHOULD DEFLECT AT LEAST 1 INCH WITHOUT VISIBLE DAMAGE. BOTH REACHED 2.5 INCHES DEFLECTION WITHOUT APPRECIABLE DAMAGE./AUTHOR/

  • Supplemental Notes:
    • No 1, Proc V64, PP 1-10, 15 FIG, 1 TAB, 2 REF
  • Authors:
    • Gamble, W L
  • Publication Date: 1967-1

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Filing Info

  • Accession Number: 00208265
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM