地震工程学报Issue(4)：874-880,7.DOI:10.3969/j.issn.1000-0844.2014.04.0874
坡面角度对岩质边坡加速度高程放大效应的影响
The Influence of Slope Angle on the Elevation Amplification Effect of Rock Slope Acceleration
摘要
Abstract
A large-scale shaking table model test of a slope with a scale of 1:10 was introduced.The model slope was composed of soil with a height of 1.8 m,length of 4.4 m,and width of 4.4 m and included four slope angles of 30°,45°,50°,and 60°.The materials of the model test were blanc fixe, river sand,gypsum,clay,and water in various ratios.A series of tests was performed with various input seismic wave types,amplitudes,and frequencies.On the basis of field investigation results, shaking table test results,and theoretical analysis results,the influence of slope angle on the ele-vation amplification effect of rock slope acceleration was discussed.The results indicate that the amplifications of peak accelerations gradually increased with increases in slope angles.In addition, two inflection points were noted at slope angles of 45°and 50°,respectively,which suggests land-slide hazards mainly occur on slopes with angles greater than 45°.Moreover,the amplification a-long the slope strike direction was essentially consistent,and the step was smooth.关键词
岩质边坡/动力响应/振动台试验/地震动参数Key words
rock slope/dynamic response/shaking table test/ground motion parameters分类
天文与地球科学引用本文复制引用
韩宜康,杨长卫,张建经,毕俊伟,高洪波..坡面角度对岩质边坡加速度高程放大效应的影响[J].地震工程学报,2014,(4):874-880,7.基金项目
国家自然科学基金,青年基金(编号:51408510) （编号:51408510）
江苏省高等职业院校高级访问工程师计划项目(2013) （2013）
黄土地区公路建设与养护技术交通行业重点实验室开放课题和黄土地区公路建设与养护技术山西省重点室验开放课题(编号:KLTLR-Y13-12) （编号:KLTLR-Y13-12）
河南省科技发展计划项目(编号:142300410200) （编号:142300410200）
