Three Dimensional Amplification of Seismic Waves by Alluvial Valleys of Arbitrary Shape. Part 1. Incident P and SV Waves

Abstract

This paper investigates amplification of ground motion in three dimensions due to arbitrarily shaped cylindrical alluvial valleys. A hybrid numerical method combining integral representation and finite element discretization is employed. The incident wave is either a plane P or SV wave, propagating at an arbitrary angle to the axis of the cylindrical valley. Numerical results showing significant dynamic amplification are presented for various angles of incidence and two different geometries of the valleys. Keywords: Seismic wave propagation; Ground motion amplification; Mathematical models.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1988
Accession Number
ADA202634

Entities

People

  • A. H. Shah
  • K. R. Khair
  • S. K. Datta

Organizations

  • University of Colorado Boulder

Tags

DTIC Thesaurus Topics

  • Earthquake Engineering
  • Earthquakes
  • Elastic Waves
  • Engineering
  • Equations
  • Free Field
  • Frequency
  • Geometry
  • Integral Equations
  • Mechanical Engineering
  • Rayleigh Waves
  • Scattering
  • Secondary Waves
  • Seismic Waves
  • Three Dimensional
  • Two Dimensional
  • Waves

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Explosive Engineering.
  • Seismology