岩土力学Issue(11)：3205-3212,8.
多级支挡结构地震主动土压力的极限分析
Limit analysis of seismic active earth pressure of multistage retaining structures
摘要
Abstract
Multistage and combination retaining structures are employed widely in high slopes; but the seismic earth pressure calculation method of this kind of retaining structure is seldom studied. According to the pseudo-static method and the plastic limit analysis theory, the upper bound solutions are derived to calculate the seismic active earth pressure and its coefficient of three-stage retaining structures including gravity retaining wall and two-stage anchored retaining structures based on strength reduction technique. The following factors including horizontal and vertical seismic coefficients, the angle of the retaining wall back, slope surface shape and its multistage retaining structure, soil cohesion, adhesive strength between soil and retaining wall back are taken into account. The case study of two-step anchored retaining structures indicates that static active earth pressure agrees well with the available research;and the effects of the factors such as strength reduction coefficient and axial force of upper anchored retaining structure are significant on seismic active earth pressure of the lower. Sensibility analysis of seismic active earth pressure of gravity retaining wall combined with anchored retaining structure indicates that the sensibilities of horizontal seismic coefficient, height and angle of gravity retaining wall are significant;and the sensibilities of axial force and angle of upper anchored retaining structure are relative small.关键词
多级支挡结构/地震主动土压力/极限分析上限定理/拟静力法/强度折减法Key words
multistage retaining structures/seismic active earth pressure/upper bound theorem of limit analysis/pseudo-static method/strength reduction method分类
建筑与水利引用本文复制引用
文畅平..多级支挡结构地震主动土压力的极限分析[J].岩土力学,2013,(11):3205-3212,8.基金项目
湖南省重点学科建设项目资助(No.2013ZDXK006)；中南林业科技大学引进高层次人才科研启动基金项目(No.104-0094)。 （No.2013ZDXK006）
