摘要
基于完全非线性的动力分析方法,对边坡地震作用下的稳定性开展研究。分析得出:地震作用下,边坡最大永久位移主要集中于坡面;对于垂直方向上布置的关键点,随高程增加,位移时程表现为"放大",加速度时程呈现"放大"和"滞后";对于水平方向布置的关键点,由坡内向外,位移时程表现为"放大",加速度时程却出现"衰减"和"同步"。研究结果有助于进一步揭示边坡在地震作用下的失稳机制。
Based on fully non-linear dynamic analysis methods, slope stability under earthquakes was analyzed. It was shown that： Under earthquakes effect, the maximum permanent displacement focused mainly on the surface of the slope; For the vertical key points, with the elevation increasing, the displacement-term expressed as ＂zoom＂, the acceleration--term showed ＂zoom＂ and ＂lag＂; For the horizontal key points, from inside to outside, the displacement-term performed as ＂zoom＂, the acceleration-term showed ＂decay＂ and ＂synchronization＂. The results were helpful to further researches on the mechanism of slope instability under earth- quakes.
出处
《中国农村水利水电》
北大核心
2010年第1期59-62,共4页
China Rural Water and Hydropower
基金
国家自然科学基金项目(90610029)
湖北省教育厅自然科学研究项目计划项目(Q20091301)
