ERROR ESTIMATION OF ABSORBING BOUNDARY CONDITION FOR TWO-PHASE GROUND

• AKIYOSHI Takashi

  THE JAPAN SOCIETY OF CIVIL ENGINEERS

• SUN Xun

  THE JAPAN SOCIETY OF CIVIL ENGINEERS

• FUCHIDA Kunihiko

  THE JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 2相系地盤における波動吸収境界の誤差評価
• 2ソウケイ ジバン ニ オケル ハドウ キュウシュウ キョウカイ ノ ゴサ ヒョウカ

Abstract

Based on Biot's two-phase mixture theory and the paraxial approximation, the absorbing boundary conditions in the time domain for u-w formulations are presented for the dynamic analysis of fluid-saturated porous media. Applying the absorbing boundary conditions to the liquefaction analysis of 2D dipping layer model, the efficiency of the proposed method is evaluated by comparing the response results with the reference solution defined as that of large scale ground model equivalent to infinite ground. Numerical results for the- several parameters regarding the structures of the model ground and input seismic waves show the accuracy and efficiency of the proposed absorbing boundary conditions even for the nonlinear dynamic analysis of infinite fluid-saturated porous media.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 1999 (619), 111-120, 1999-04-21

  Japan Society of Civil Engineers

Keywords

• absorbing (viscous) boundary conditions
• Biot's 2-phase mixture theory
• fluid-saturated porous media
• paraxial approximation
• liquefaction
• far-field

Details

• CRID: 1390001205310133248
• NII Article ID: 130003983221
• NII Article ID: 10002529016
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.1999.619_111
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 4713539
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4713539
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/1999/619/1999_619_111/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed