| 边坡破坏过程离心模型试验的应力位移场研究 |
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| 引用本文： | 张嘎,王爱霞,牟太平,张建民. 边坡破坏过程离心模型试验的应力位移场研究[J]. 岩土力学, 2008, 29(10): 2637-2641 |
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| 作者姓名： | 张嘎 王爱霞 牟太平 张建民 |
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| 作者单位： | 1.清华大学 水沙科学与水利水电工程国家重点实验室，北京 100084；2 北京科技大学土木工程系， 北京 100083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 提出了一种确定离心模型试验过程中边坡的应力和位移场及其变化过程的方法。基于物理测量与数值模拟相结合的思路，首先采用离心场非接触位移测量技术测量出边坡的位移场；然后通过数值模拟和反演分析等途径算出边坡的应力场。该方法已成功用于多个边坡离心模型试验中的应力位移场的确定，表明了该方法可以较好地得出离心模型试验过程中边坡的应力和位移场。边坡离心模型试验结果表明，边坡的破坏过程与应变局部化和应力集中的过程有着密切联系。
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| 关 键 词： | 边坡 离心模型试验 渐进破坏 测量 数值模拟 |
| 收稿时间： | 2006-09-27 |
Study of stress and displacement fields in centrifuge modeling of slope progressive failure |
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| ZHANG Ga,WANG Ai-xia,MU Tai-ping,ZHANG Jian-Min. Study of stress and displacement fields in centrifuge modeling of slope progressive failure[J]. Rock and Soil Mechanics, 2008, 29(10): 2637-2641 |
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| Authors: | ZHANG Ga WANG Ai-xia MU Tai-ping ZHANG Jian-Min |
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| Affiliation: | 1.State Key Laboratory of Hydroscience and Hydraulic Engineering, Tsinghua University, Beijing 100084, China;2.Department of Civil Engineering, University of Science and Technology Beijing, Beijing 100084, China |
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| Abstract: | A new method is presented to capture the stress and the displacement fields of a slope in centrifuge model test process based on the scheme with the combination of physical measurement and numerical analysis.The displacement field is measured by using non-contact displacement measuring system on the basis of image analysis in centrifuge model test.Consequently,the stress field is obtained by using numerical simulation with back analysis.Such a method has been used for several centrifuge model tests.It has b... |
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| Keywords: | slope centrifuge modeling progressive failure measurement numerical analysis |
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