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Seismic design of retaining wall by considering wall-soil inertia for active case

Journal Article


Abstract


  • Effect of both the wall and soil inertia must be considered for the design of retaining wall under seismic conditions.

    In this paper, by considering pseudo-dynamic seismic forces acting on the soil wedge and the wall, the required weight

    of the wall under seismic conditions is determined for the design purpose of the retaining wall under active earth pressure

    condition. The method proposed considers the movement of both shear and primary waves through the backfill and the retaining

    wall due to seismic excitation. A rigid vertical retaining wall supporting cohesionless backfill with horizontal ground has

    been considered in the present analysis by considering planar rupture surface. Results in graphical form show the variations

    of proposed design factors viz. soil thrust factor (FT), wall inertia factor (FI) and combined dynamic factor (Fw) with respect to

    horizontal seismic acceleration coefficient (kh), required for the design of the wall under seismic conditions. Also the effects of

    variation of parameters like soil friction angle, wall friction angle, vertical seismic acceleration, period of lateral shaking and

    amplification factor on combined dynamic factor have been studied. A comparative study between the present theory and

    available pseudo-static results has shown the merits of the present analysis.

Publication Date


  • 2008

Geographic Focus


Citation


  • Nimbalkar, S. & Choudhury, D. (2008). Seismic design of retaining wall by considering wall-soil inertia for active case. International Journal of Geotechnical Engineering, 2 (4), 319-328.

Scopus Eid


  • 2-s2.0-43949105870

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/930

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 319

End Page


  • 328

Volume


  • 2

Issue


  • 4

Abstract


  • Effect of both the wall and soil inertia must be considered for the design of retaining wall under seismic conditions.

    In this paper, by considering pseudo-dynamic seismic forces acting on the soil wedge and the wall, the required weight

    of the wall under seismic conditions is determined for the design purpose of the retaining wall under active earth pressure

    condition. The method proposed considers the movement of both shear and primary waves through the backfill and the retaining

    wall due to seismic excitation. A rigid vertical retaining wall supporting cohesionless backfill with horizontal ground has

    been considered in the present analysis by considering planar rupture surface. Results in graphical form show the variations

    of proposed design factors viz. soil thrust factor (FT), wall inertia factor (FI) and combined dynamic factor (Fw) with respect to

    horizontal seismic acceleration coefficient (kh), required for the design of the wall under seismic conditions. Also the effects of

    variation of parameters like soil friction angle, wall friction angle, vertical seismic acceleration, period of lateral shaking and

    amplification factor on combined dynamic factor have been studied. A comparative study between the present theory and

    available pseudo-static results has shown the merits of the present analysis.

Publication Date


  • 2008

Geographic Focus


Citation


  • Nimbalkar, S. & Choudhury, D. (2008). Seismic design of retaining wall by considering wall-soil inertia for active case. International Journal of Geotechnical Engineering, 2 (4), 319-328.

Scopus Eid


  • 2-s2.0-43949105870

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/930

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 319

End Page


  • 328

Volume


  • 2

Issue


  • 4