Numerical analyses of dynamic response of geosynthetic-reinforced soil retaining wall
Numerical analyses of dynamic response of geosynthetic-reinforced soil retaining wall
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DOI：
10.1080/12269328.2014.931259
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发表时间：
2014-03
影响因子：
1.7
通讯作者：
T. Akhlaghi;A. Nikkar
中科院分区：
文献类型：
--
作者：
T. Akhlaghi;A. Nikkar
加筋土挡土墙由于其优于传统挡土墙的优点，近年来得到广泛应用。本文采用快速拉格朗日连续分析软件（Fast Lagrangian Analysis of Continua）进行数值分析，研究了墙体的力学和几何特性以及震源振幅和频率对土工合成土挡土墙动力性能的影响。结果表明，表面类型影响变形的一般形式。墙体位移随钢筋刚度和长度的增加而减小。加速度幅值的任何增加都会增加墙体位移和配筋荷载。基础激励频率与模型固有频率之差是决定墙体动力响应的最重要因素。
Reinforced soil retaining walls have recently become widespread due to their advantages over conventional retaining walls. In this paper, numerical analyses, using Fast Lagrangian Analysis of Continua software, have been used to investigate the influence of mechanical and geometrical properties of the wall and amplitude and frequency of the source vibration on the dynamic behavior of a geosynthetic-reinforced soil retaining wall. The results show that the type of facing affects the general form of deformation. Also the wall displacement decrease with increase in reinforcement stiffness and length. Any increase in the acceleration amplitude increase the wall displacement and reinforcement loads. The difference between the frequency of the base excitation and the natural frequency of the model is the most important factor determining the wall dynamic response.