4.4 Article

Seismic stability analysis of gravity retaining wall supporting c-φ soil with cracks

期刊

SOILS AND FOUNDATIONS
卷 59, 期 4, 页码 1103-1111

出版社

JAPANESE GEOTECHNICAL SOC
DOI: 10.1016/j.sandf.2019.01.004

关键词

Seismic stability analysis; Limit analysis; Retaining wall; c-phi soil; Cracks

资金

  1. NSFC [41877291, 41472293, 41672356, 41702331, 41772386]
  2. 135 Strategic Program of IMHE, CAS [SDS-135-1704]
  3. Belt & Road International Cooperation Team Project of CAS
  4. Key Research and Development Projects of Sichuan Province [2017SZ0041]

向作者/读者索取更多资源

This article presents an analytical approach for the seismic stability analysis of gravity retaining wall with c-phi backfill soil. Cracks which are pre-existing (open before the collapse) and are form as part of slope collapse are considered. For a translational failure mechanism assumed, formulas are provided to calculate directly the yield acceleration and the inclination of failure surface. Factors such as cracks and cracks opening, wall back inclination, soil-wall friction, backfill slope are easily to be coupled into the formulations. Both the depth and most adverse location of the crack can be determined from the optimization procedure. Comparisons are made with existing methods and the influences of cracks opening are discussed. The influence of a crack presence on seismic stability of soil-wall system is distinct and pre-existing (opened) cracks have more adverse effect. (C) 2019 Production and hosting by Elsevier B.V. on behalf of The Japanese Geotechnical Society.

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