Scattering of seismic waves : applications to the Mexico City Valley
著者
書誌事項
Scattering of seismic waves : applications to the Mexico City Valley
（Advances in earthquake engineering / series editors D.E. Beskos & E. Kausel, 11）
WIT Press, c2002
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注記
Includes bibliographical references
内容説明・目次
内容説明
This title deals with the application of boundary element technology to the study of scattering of seismic waves from irregular topographies and buried valleys. The author presents numerical refinements that allow the practical computation of two- and three-dimensional problems and then proves that these are accurate and efficient when compared with presently available solutions. The refinements are then applied to reproduce amplifications observed in the Mexico City Valley.
目次
- Summary of contents. Wave propagation in a half-space: Introduction
- Field equations in an elastic domain
- Displacements in an infinite medium
- Half-space solution
- Displacements in three-dimensional problems. Two-dimensional scalar problem - SH-waves: Introduction
- Governing equations
- Boundary integral formulation
- The boundary element method
- Scattering by valley
- Fictitious eigenfrequencies
- Damping
- Time domain formulation
- Numerical considerations and comparison with other results
- Combination of boundary elements and finite elements. Two-dimensional elastodynamics - P-, SV- and Rayleigh waves: Introduction
- Governing equations
- Boundary integral formulation
- Fundamental solution
- Boundary conditions over the free traction surface
- The boundary element method
- Scattering by valleys
- Damping
- Results. Three-dimensional scattering of seismic waves from topographical structures: Introduction
- Governing equations
- Boundary integral formulation
- Boundary conditions over the free traction surface
- The boundary element method
- Scattering by three-dimensional valleys
- Comparison with other solutions
- Scattering by mountains. Observed amplification in the Mexico City Valley: Introduction
- The earthquakes
- Characteristics of the valley
- Observed motion in Mexico City
- Spectral ratios between hill and lake zones
- Non linear behaviour
- Observed dominant periods
- Relative amplification maps. Preliminary modelling of the Mexico City Valley: Introduction
- One-dimensional model
- Two-dimensional modelling using the BEM. Concluding remarks: General conclusions
- Suggestions for further research.
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