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Author:

Li, Liang (Li, Liang.) (Scholars:李亮) | Wang, Man (Wang, Man.) | Jiao, Hongyun (Jiao, Hongyun.) | Du, Xiuli (Du, Xiuli.) | Shi, Peixin (Shi, Peixin.)

Indexed by:

EI Scopus SCIE

Abstract:

A semi-analytical method for the near-field antiplane wave propagation analysis in the layered fluid-saturated porous media (FSPM) is proposed based on the Biot u-U dynamic formulation. The wave propagation equations of the FSPM are decoupled by the variable-separating method. The thin-layer element method (TLEM) is applied to discretize the infinite domain and construct the consistent artificial boundary condition. The finite element method (FEM) is adopted for the space discretization of the finite domain and the numerical solution of the dynamic response. The proposed method is validated by the comparison of the numerical results of this method with those in the published references and acquired from the remote artificial boundary. Subsequently, this method is applied to investigate typical near-field antiplane wave propagation problems in the FSPM. Parametric sensitivity investigations are also executed to explore the impact of mechanical parameters, including permeability coefficients, porosity, and shear modulus of the solid phase, on the dynamic response of the FSPM. The study results confirm the efficacy and efficiency of the proposed method in the near-field antiplane wave propagation analysis in the FSPM.

Keyword:

finite element method consistent artificial boundary condition near-field antiplane wave propagation fluid-saturated porous media thin-layer element method variable-separating method

Author Community:

  • [ 1 ] [Li, Liang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 2 ] [Wang, Man]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 3 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 4 ] [Jiao, Hongyun]China Earthquake Adm, Inst Geophys, Beijing, Peoples R China
  • [ 5 ] [Shi, Peixin]Soochow Univ, Sch Urban Rail Transportat, Suzhou, Peoples R China

Reprint Author's Address:

  • [Li, Liang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China;;

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Source :

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS

ISSN: 0363-9061

Year: 2024

Issue: 1

Volume: 49

Page: 42-68

4 . 0 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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