期刊论文

Jiang, J.-Q.(lh201314@163.com)

中文

中南大学学报(自然科学版)

1672-7207

2011

42

1

227-233

湖南省教育厅科研项目

本校为第一且通讯机构

为研究高填方加筋路堤的地震反应,将其简化为一个多质点体系,考虑加筋对路堤抗侧刚度的影响及筋材与土体间的摩擦力,推导水平地震作用下加筋路堤的动力方程,然后,将动力方程所代表的动力学系统用状态空间法予以描述,根据其状态方程在SIMULINK环境下建立仿真分析模型,从而求解动力方程,获得高填方加筋路堤的地震反应结果.并将此仿真模型运用于分析某一铁路路基加筋土挡墙的地震反应,分析结果与FLAC2D计算值进行对比.研究结果表明:该方法简单实用,求解精度较高,模型中的力学参数可以通过常规土工试验获得,可应用于实际工程地震反应预测;加筋对水平地震作用下堤顶加速度放大作用有明显的抑制效果;加...

In order to study seismic response of high-filled reinforced embankment, the embankment was simplified as a multi-mass system, and its dynamic equation under horizontal seismic was deduced considering the effects of reinforcements on soil lateral stiffness and reinforcement-soil friction. The dynamic system represented by the dynamic equation was expressed using the state space method. According to the state equation, a numerical simulation model was established using SIMULINK so that the dynamic response can be obtained. This proposed model was applied to simulate the seismic response of a ra...