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边坡在地震作用下的加卸载响应规律研究 被引量：29

STUDY ON LAWS OF LOAD-UNLOAD RESPONSE OF SLOPE UNDER SEISMIC LOAD
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摘要 将作用在边坡上的地震力视为对边坡的加卸载,应用动力有限单元法和加卸载响应比理论开展边坡的全时程动力分析,建立了地震边坡加卸载响应模型,以边坡位移、位移速度、位移加速度为响应参数讨论了地震过程中边坡加卸载响应比的变化,提出了以加卸载响应比判断地震边坡稳定性的新思路,研究结论可推广应用于所有具有周期荷载特征的边坡动力稳定性分析。 By taking seismic inertial force as load and unload on slopes,time-relied analysis is carried out with dynamic FEM and load-unload response ratio theory. A load-unload response model of slope under seismic load is established. And the variation of load-unload response ratio during earthquake is discussed. The results can be used for almost all slopes with periodic load character.
作者 姜彤 马莎 许兵 马瑾
机构地区 华北水利水电学院岩土工程系 中国地震局地质研究所北京 中国科学院地质与地球物理研究所 中国地震局地质研究所
出处 《岩石力学与工程学报》 EI CAS CSCD 北大核心 2004年第22期3803-3807,共5页 Chinese Journal of Rock Mechanics and Engineering
基金 华北水利水电学院青年科研基金项目 河南省高校青年骨干教师项目资助课题。
关键词 土力学 地震 边坡 加卸载响应比 soil mechanics,seism,slope,load-unload response ratio
分类号 TU435 [建筑科学—岩土工程]
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岩石力学与工程学报
2004年 第22期

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