Seismic stability of reinforced slopes: failure mechanisms and displacements
Seismic stability of reinforced slopes: failure mechanisms and displacements
复制标题
加筋边坡的地震稳定性：破坏机制和位移
DOI：
10.1680/gein.2008.15.5.333
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发表时间：
2008
影响因子：
4.5
通讯作者：
J. Charng
中科院分区：
文献类型：
--
作者：
Ching;J. Horng;J. Charng
基于作者先前报道的倾斜台试验结果，研究了具有不同抗震能力的加筋边坡的破坏机理。三个抗震等级加固边坡采用不同的加固材料和面临的刚度确定，各种极限倾角和模式的墙壁变形的基础上。结果表明，当极限倾角θf ≥ 20°（或临界地震系数khc≥0.36）时，高的钢筋界面摩擦角（δr = 30°）是获得最高抗震水平的先决条件。钢筋长度和钢筋刚度起次要作用，因为这两个因素在达到最高抗震水平时是可选的。当使用高抗拉刚度钢筋时，对于具有中等或低抗震水平的斜坡，发生与斜坡下部三分之一以上的最大坡面变形相关的基底滑动破坏。那个...
Failure mechanisms of reinforced slopes with different seismic resistance capacities were examined, based on the results of tilting table tests previously reported by the authors. Three seismic resistance levels for slopes reinforced using various reinforcement materials and facing rigidities were identified, based on various ultimate tilting angles and modes of wall deformation. It was found that a high reinforcement interface friction angle (δr = 30°) is a prerequisite for attaining the highest level of seismic resistance with an ultimate tilting angle, θf ≥ 20° (or a critical seismic coefficient, khc≥0.36). Reinforcement length and reinforcement stiffness play secondary roles, in the sense that these two factors are optional in attaining the highest level of seismic resistance. When a high tensile stiffness reinforcement was used, base sliding failure associated with maximum slope face deformation over the lower third of the slope occurred for slopes with a medium or a low seismic resistance level. The...