| 地震作用下折线型滑面斜坡的动力响应 |
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| 引用本文： | 倪振强,孔纪名,阿发友,崔云,田述军.地震作用下折线型滑面斜坡的动力响应[J].四川大学学报(工程科学版),2011(Z1). |
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| 作者姓名： | 倪振强 孔纪名 阿发友 崔云 田述军 |
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| 作者单位： | 中国科学院山地灾害与地表过程重点实验室/中国科学院水利部成都山地灾害与环境研究所;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金资助项目(50639070); 云南省交通运输厅科技项目 |
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| 摘 要： | 折线型滑面斜坡是一种常见的滑坡类型,在地震作用下的动力响应非常复杂。为了研究地震作用下折线型滑面斜坡的动力响应,应用动力响应时程分析法,利用大型有限元软件ANSYS建立了数值模型。首先分析了模型在静力作用下的力学特性,然后对模型输入地震波,分析模型在动力作用下的动力响应。通过分析得到,斜坡在地震动力作用下出现了应力转移,节理上下两侧岩层发生错动,由于锁固段的存在,斜坡下部错动大于上部。研究斜坡属于后发型滑坡,地震作用虽未使斜坡发生破坏,但由于地震作用的累积效应,使斜坡的稳定性降低。
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| 关 键 词： | 斜坡 折线型滑面 地震 动力响应 数值模拟 |
Dynamic Response of Slope with Broken Line Slip Surface Under Action of Earthquake |
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| NI Zhen-qiang,KONG Ji-ming,A Fa-you,CUI Yun,TIAN Shujun.Dynamic Response of Slope with Broken Line Slip Surface Under Action of Earthquake[J].Journal of Sichuan University (Engineering Science Edition),2011(Z1). |
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| Authors: | NI Zhen-qiang KONG Ji-ming A Fa-you CUI Yun TIAN Shujun |
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| Affiliation: | NI Zhen-qiang1,2,KONG Ji-ming1,A Fa-you1,CUI Yun1,TIAN Shujun1,2(1.Key Lab.of Mountain Hazards and Surface Process,Chinese Academy of Sciences/Inst.of Mountain Hazards and Environment,Chinese Academy of Sciences and Ministry of Water Conservancy,Chengdu 610041,China,2.Graduate Univ.of Chinese Academy of Sciences,Beijing 100101,China) |
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| Abstract: | Slope with broken line slip surface is a common type of landslide,and the dynamic response under the action of earthquake is very complex.In order to study the dynamic response of slope with broken line slip surface under the action of earthquake,applying time history analysis method,the numerical model with ANSYS finite element software was established.The mechanical properties under static behavior was analyzed,then by inputting seismic waves to the model,the dynamic response under dynamic loading was ana... |
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| Keywords: | slope broken line slip surface earthquake dynamic response numerical simulation |
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