View in EDS PDF Full Text

Dynamic responses of a sediment-filled valley with a fluid layer subject to incident waves.

Saved in:
Bibliographic Details
Title: Dynamic responses of a sediment-filled valley with a fluid layer subject to incident waves.
Authors: Liao, Wen-I1 wiliao@ntut.edu.tw
Source: Earthquake Engineering & Engineering Vibration. Jun2011, Vol. 10 Issue 2, p175-185. 11p.
Subjects: Elastic wave diffraction, Sedimentary structures, Least squares, Integral equations, Gaussian quadrature formulas, Bessel functions, Method of steepest descent (Numerical analysis), Poisson's ratio, Wave functions
Abstract: The diffraction of elastic waves by a sedimentary valley in a homogeneous elastic half-space is studied in this paper. The sediment-filled valley is composed of a fluid layer over a soft soil deposit whose characteristics may be significant and should be carefully considered when designing long span bridges with high piers. The method of analysis adopted in the paper is to decompose the problem into an interior region and an exterior region. In the exterior region, the scattered wave fields are constructed with the linear combinations of two independent sets of Lamb's singular solutions, i.e., the integral solutions for two concentrated surface loads in two directions; and their derivatives are used to represent the scattered wave fields. A technique is proposed to calculate the integrals in the wave-number domain based on the method of steepest descent. For the interior region, the wave fields for the fluid layer and soft soil deposit are expressed in terms of wave functions which satisfy the equation of motion. The continuity condition at the interface of the media is satisfied in the least square sense. The effects of geometric topography, soil amplification and fluid layer subject to different types of incident harmonic plane waves are analyzed and discussed. [ABSTRACT FROM AUTHOR]
Copyright of Earthquake Engineering & Engineering Vibration is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 61190828
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Dynamic responses of a sediment-filled valley with a fluid layer subject to incident waves.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Liao%2C+Wen-I%22">Liao, Wen-I</searchLink><relatesTo>1</relatesTo><i> wiliao@ntut.edu.tw</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Earthquake+Engineering+%26+Engineering+Vibration%22">Earthquake Engineering & Engineering Vibration</searchLink>. Jun2011, Vol. 10 Issue 2, p175-185. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Elastic+wave+diffraction%22">Elastic wave diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentary+structures%22">Sedimentary structures</searchLink><br /><searchLink fieldCode="DE" term="%22Least+squares%22">Least squares</searchLink><br /><searchLink fieldCode="DE" term="%22Integral+equations%22">Integral equations</searchLink><br /><searchLink fieldCode="DE" term="%22Gaussian+quadrature+formulas%22">Gaussian quadrature formulas</searchLink><br /><searchLink fieldCode="DE" term="%22Bessel+functions%22">Bessel functions</searchLink><br /><searchLink fieldCode="DE" term="%22Method+of+steepest+descent+%28Numerical+analysis%29%22">Method of steepest descent (Numerical analysis)</searchLink><br /><searchLink fieldCode="DE" term="%22Poisson's+ratio%22">Poisson's ratio</searchLink><br /><searchLink fieldCode="DE" term="%22Wave+functions%22">Wave functions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The diffraction of elastic waves by a sedimentary valley in a homogeneous elastic half-space is studied in this paper. The sediment-filled valley is composed of a fluid layer over a soft soil deposit whose characteristics may be significant and should be carefully considered when designing long span bridges with high piers. The method of analysis adopted in the paper is to decompose the problem into an interior region and an exterior region. In the exterior region, the scattered wave fields are constructed with the linear combinations of two independent sets of Lamb's singular solutions, i.e., the integral solutions for two concentrated surface loads in two directions; and their derivatives are used to represent the scattered wave fields. A technique is proposed to calculate the integrals in the wave-number domain based on the method of steepest descent. For the interior region, the wave fields for the fluid layer and soft soil deposit are expressed in terms of wave functions which satisfy the equation of motion. The continuity condition at the interface of the media is satisfied in the least square sense. The effects of geometric topography, soil amplification and fluid layer subject to different types of incident harmonic plane waves are analyzed and discussed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Earthquake Engineering & Engineering Vibration is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=61190828
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s11803-011-0056-2
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 175
    Subjects:
      – SubjectFull: Elastic wave diffraction
        Type: general
      – SubjectFull: Sedimentary structures
        Type: general
      – SubjectFull: Least squares
        Type: general
      – SubjectFull: Integral equations
        Type: general
      – SubjectFull: Gaussian quadrature formulas
        Type: general
      – SubjectFull: Bessel functions
        Type: general
      – SubjectFull: Method of steepest descent (Numerical analysis)
        Type: general
      – SubjectFull: Poisson's ratio
        Type: general
      – SubjectFull: Wave functions
        Type: general
    Titles:
      – TitleFull: Dynamic responses of a sediment-filled valley with a fluid layer subject to incident waves.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Liao, Wen-I
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2011
              Type: published
              Y: 2011
          Identifiers:
            – Type: issn-print
              Value: 16713664
          Numbering:
            – Type: volume
              Value: 10
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Earthquake Engineering & Engineering Vibration
              Type: main
ResultId 1