HARMONIC WAVE RESPONSE OF TUNNELS IN POROELASTIC SATURATED SOIL

The problem of harmonic wave diffraction by tunnels in poroelastic Biot soil under conditions of plane strain is solved numerically-analytically. The method is based on the theory of Mei and Foda, which considers the total field to be approximated by the superposition of an elastodynamic problem with modified elastic constants and mass density for the whole domain and a one-dimensional diffusion problem for the pore water pressure confined to a boundary layer around the tunnel and along the free soil surface. The first problem is solved numerically by the boundary element method, while the second one analytically both in the frequency domain. This method can treat one or more tunnels of any geometry and plane harmonic waves of any orientation. An example dealing with a circular tunnel in the infinite poroelastic plane is solved by the proposed method and the results are found to be in excellent agreement with those obtained analytically by Mei et al.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1853124567
• Corporate Authors:

  Computational Mechanics Publications

  Ashurst Lodge, Ashurst
  Southampton SO40 7AA,   United Kingdom 
• Authors:
  • Stamos, A A
  • THEODORAKOPOULOS, D D
  • Beskos, D E
• Conference:
  • First International Symposium on Earthquake Resistant Engineering Structures (ERES '96)
  • Location: Thessaloniki, Greece
  • Date: 1996-10-30 to 1996-11-1
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 101-112
• Serial:
  • Publication of: Computational Mechanics Publications
  • Publisher: Computational Mechanics Publications
  • ISSN: 1462-6055

Subject/Index Terms

• TRT Terms: Boundary layer; Earthquake engineering; Harmonic analysis; Numerical analysis; Pore water pressures; Saturated soils; Tunnels
• Uncontrolled Terms: Poroelastic soils
• Subject Areas: Bridges and other structures; Design; Highways; I25: Design of Tunnels;

Filing Info

• Accession Number: 00760151
• Record Type: Publication
• ISBN: 1853124567
• Files: TRIS
• Created Date: Feb 8 1999 12:00AM