岩土工程学报2017，Vol.39Issue(z2)：95-98,4.DOI:10.11779/CJGE2017S2024
地震作用下临近边坡的条形基础极限承载力研究
Seismic bearing capacity of strip footings adjacent to slopes
摘要
Abstract
The seismic load has an adverse effect on the bearing capacity of the footings. However, few studies are performed to study its impact on the bearing capacity of slopes. In this study, a rigorous analysis in the framework of the upper-bound limit state plasticity, known as the discontinuity layout optimization (DLO), is adopted to investigate the performance of footings placed on the top of slopes considering the horizontal seismic action by the pseudo-static method. A set of design charts containing the horizontal seismic acceleration are presented for preliminary estimates. The results show the differences from the horizontal foundation, c, φ and γ of foundation soil will produce coupling actions for this problem. But in the existing researches, Nc and Nγ are calculated separately and linearly superposed without considering the complexity of slope projects, thus the bearing capacity of c-φ slope is underestimated.关键词
地震/临近边坡/承载力/条形基础/极限分析Key words
earthquake/near slope/bearing capacity/strip footing/limit analysis分类
建筑与水利引用本文复制引用
尹鑫,周海祚,郑刚..地震作用下临近边坡的条形基础极限承载力研究[J].岩土工程学报,2017,39(z2):95-98,4.基金项目
国家自然科学基金项目(41630641,51378345) （41630641,51378345）
国家重点研发计划(2016YFC0802008) （2016YFC0802008）
