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Volume 36 Issue 11
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LIU Jie, HUANG Da, GU Dong-ming, CEN Duo-feng, ZENG Bin. Seismic rotating stability analysis of retaining wall backfilled by cohesiveless soils considering influence of front cover soils[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(11): 2144-2148. DOI: 10.11779/CJGE201411022
Citation: LIU Jie, HUANG Da, GU Dong-ming, CEN Duo-feng, ZENG Bin. Seismic rotating stability analysis of retaining wall backfilled by cohesiveless soils considering influence of front cover soils[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(11): 2144-2148. DOI: 10.11779/CJGE201411022
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Seismic rotating stability analysis of retaining wall backfilled by cohesiveless soils considering influence of front cover soils

  • 1. College of Civil Engineering, Chongqing University, Chongqing 400045, China;
    2. College of Civil Engineering, Hebei University of Engineering, Handan 056038, China;
    3. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400045, China

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  • Received Date: February 20, 2014
  • Published Date: November 19, 2014
    Graphical Abstract
    • Abstract
  • The seismic rotating stability analysis of gravity retaining walls is always the hot research spot in geotechnical engineering. The retaining wall, backfilled soils behind it and front cover soils are taken as a whole system. According to the upper bound method, assuming that the backfilled soils obey the Mohr-Coulomb criterion, the seismic rotating stability of gravity retaining walls is studied. Considering the effect of front cover soils for a pure rotational failure mechanism assumed, formulas are derived to calculate directly the yield acceleration and the inclination of the failure surface. The optimal solution of the yield acceleration is found. The calculated results are in agreement with the ones obtained by the Mononobe-Okabe method, and the proposed method is validated. The seismic yield acceleration coefficient kcr increases with the increasing height ratio of front cover soils to backfills (H2 /H1). Especially, when the value of H2 /H1 is greater than 0.15, kcr increases rapidly with an increase in H2 /H1. Therefore felicitous increase of front cover soils can improve the seismic rotating stability of retaining walls.
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    • References (13)
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