EARTHQUAKE RESPONSE OF UNDERGROUND PIPES

Seismic response of underground pipelines is investigated theoretically considering dynamic soil-pipe interaction. A lumped mass model of the pipe is employed with the soil reactions derived from static and dynamic continuum theories. The soil is supposed to be homogeneous or composed of two different media separated by a vertical boundary. Axial and bending stresses in the pipe due to travelling waves are examined. An extensive parametric study indicates that the axial stresses in the pipe are much higher than bending stresses. In a homogeneous medium, soil-pipe interaction reduces the stresses in the pipe compared to those calculated ignoring interaction. In a soil composed of two different media, the pipe stresses are highest close to the boundary and can exceed those predicted neglecting interaction.(a) (TRRL)

  • Corporate Authors:

    Wiley (John) & Sons, Limited

    Baffins Lane
    Chichester, Sussex  England 
  • Authors:
    • Hindy, A
    • Novak, M
  • Publication Date: 1979-9-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00316895
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Dec 30 1980 12:00AM