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| 不连续岩体-拱坝系统的动力过程数值模拟方法 | |
| 引用本文： | 蔡永恩,罗纲,刘今朝,李青松,张伯艳,陈厚群.不连续岩体-拱坝系统的动力过程数值模拟方法[J].岩土力学,2004,25(Z2):361-365. |
| 作者姓名： | 蔡永恩 罗纲 刘今朝 李青松 张伯艳 陈厚群 |
| 作者单位： | 1. 北京大学,地球物理系,北京,100871 2. Department of Geological Sciences,University of Missouri Columbia,MO 65211 USA 3. 中国铁道科学院研发中心,北京,100081 4. 中国水利水电科学研究院,北京,100044 |
| 摘 要： | 提出了一种分析三维不连续变形块体系统动力学过程和建坝的数值方法,该方法不但能够模拟位移不连续面在地震载荷作用下的张开和大尺度的摩擦滑移,而且还能给出不连续面上安全系数的分布和随时间的变化.通过有2个块体组成的系统验证了所提出的方法的正确性,同时用它分析了一个具有断层和伸缩缝的拱坝系统模型在地震载荷下的动力反应. |
| 关 键 词： | 岩体-拱坝系统 不连续变形 动力过程 数值模拟 安全系数 |
| 文章编号： | 1000-7598-(2004)增-0361-05 |
| 修稿时间： | 2004年5月8日 |
A numerical method for modeling dynamic process of discontinuous rock foundation-arch dam system |
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| CAI Yong-en,LUO Gang,LIU Jin-zhao,LI Qing-song,ZHANG Bo-yan,CHEN Hou-qun.A numerical method for modeling dynamic process of discontinuous rock foundation-arch dam system[J].Rock and Soil Mechanics,2004,25(Z2):361-365. | |
| Authors: | CAI Yong-en LUO Gang LIU Jin-zhao LI Qing-song ZHANG Bo-yan CHEN Hou-qun |
| Institution: | CAI Yong-en1,LUO Gang1,LIU Jin-zhao3,LI Qing-song2,ZHANG Bo-yan4,CHEN Hou-qun4 |
| Abstract: | A numerical method for analyzing the dynamic process of discontinuous deformation system and building dam is proposed. It can model opening and a large amount of frictional sliding of discontinuous surfaces of displacement and describe the changes of safety factor with time and its distribution on surfaces. The method is verified by a discontinuous system with two elastic blocks first; and then is used to analyze the dynamic response of an arch dam system with faults and construction joints under seismic loading. |
| Keywords: | rock foundation-arch dam system discontinuous deformation dynamic process numerical modeling safety factor |
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