期刊论文

Wen, C.-P.(wenchangping@163.com)

中文

振动工程学报

1004-4523

2014

27

3

426-432

10.16385/j.cnki.issn.1004-4523.2014.03.014

国家自然科学基金资助项目(51204215) 湖南省重点学科建设项目资助(2013ZDXK006) 中南林业科技大学引进***人才科研启动基金资助项目(104-0094) 铁道部科技研究开发计划课题(2008G028-D-4)

本校为第一且通讯机构

根据顺层岩石倾角20°,30°和40°,设计了3个比尺为1∶8、重力式挡墙与格构式锚杆框架结构二级组合支护的厚覆盖层与顺层岩石边坡模型,开展了3个大型振动台模型试验,对比研究多级支护和不同顺层岩石倾角条件下重力式挡墙的地震动力响应特性。大型振动台模型试验以汶川波作为激振波,采用水平(X)向、竖直(Z)向和水平竖直(XZ)双向等三种激振方式,测试了重力式挡墙加速度、动位移和动土压力响应特性。通过分析加速度动力响应特性,得到了加速度放大系数随激振方式、激振加速度峰值、墙高和顺层岩石倾角的变化规律;通过分析动位移响应特性发现,重力式挡墙主要产生水平向动位移响应和动位移模式,且主要...

Three slope models with the geometric scale of 1:8 of thick soil cover and bedding rock, and with different consequent rock angles 20°, 30°, and 40°, were designed respectively. Three large-scale shaking table model tests, which use the Wenchuan seismic waves as excitation sources and apply the exicitation from three kinds of directions including X, Z, and XZ both, were performed to study comparatively the seismic response characteristics of the gravity retaining wall of two-stage retaining structures comprising the gravity retaining wall and the anchor lattice frame structure. Bas...