期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：5
页码：1-7
DOI：10.1088/1755-1315/304/5/052097
出版社：IOP Publishing
摘要：Under either convex or concave log-spiral failure mechanism, the passive earth pressure may be overestimated. This paper develops a new formula satisfying the moment limit equilibrium condition, which combines a new procedure to determine the passive earth pressure. The procedure could consider convex and concave log-spiral failure mechanisms simultaneously and figure out which failure mechanism is critical. The present method can investigate the influence of the inclination of wall, the slope of backfill or the wall friction on the shape of the critical slip surface. Additionally, the comparisons illustrate that the critical slip surface is concave log-spiral under certain conditions.
