| 边坡动力破坏机理的振动台试验研究 |
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| 引用本文： | 刘振平,刘福海,赵显波. 边坡动力破坏机理的振动台试验研究[J]. 土木与环境工程学报, 2014, 36(4): 57-62 |
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| 作者姓名： | 刘振平 刘福海 赵显波 |
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| 作者单位： | [1]黑龙江工程学院土木与建筑工程学院,哈尔滨150050; [2]东北电力设计院,长春130021; [3]黑龙江省水利科学研究院,哈尔滨150080 |
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| 基金项目： | 国家自然科学基金（41201264、51179024、51379029） |
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| 摘 要： | 将数字图像位移测量技术和有限元数据平滑方法应用到边坡模型的振动台试验中,得到了整个振动过程的位移场和应变场,探讨了土质边坡的动力破坏模式和破坏机理.结果表明土质边坡的变形是渐进式的,坡体中部到坡脚是剪切破坏,坡顶一定深度是拉剪破坏,破坏时有深层的圆弧状滑动面,用位移时程曲线的广义曲率做为判断边坡动力破坏的物理量是可行的.
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| 关 键 词： | 边坡 振动台试验 应变测量 破坏机理 |
| 收稿时间： | 2013-01-07 |
Shaking Table Test on Soil Slope Seismic Damage Failure Mechanism |
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| Liu Zhenping,Liu Fuhai and Zhao Xianbo. Shaking Table Test on Soil Slope Seismic Damage Failure Mechanism[J]. Journal of Civil and Environmental Engineering, 2014, 36(4): 57-62 |
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| Authors: | Liu Zhenping Liu Fuhai Zhao Xianbo |
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| Affiliation: | Liu Zhenping , Liu Fuhai , Zhao Xianbo (1. College of Civil and Architecture Engineering, Heilongjiang Institute of Technology, Harbin 150050, P. R. China; 2. Northeast Electric Power Design Institute, Changchun 130021, P. R. China; 3. Heilongjiang Provincial Hydraulic Research Institute,Harbin 150080,P. R. China) |
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| Abstract: | The digital image displacement measurement technology and finite element data smooth were applied in the soil slope shaking table test. The displacement field and strain field were obtained from the whole vibration process. And the seismic failure mode and failure mechanism were discussed as well. The results show the deformation of soil slope increases gradually; there is shear failure from slope middle to toe and tension-shear failure at the top of slope; there forms deep arc-shaped slip surface when the slope model fails. The generalized curvature of displacement time-hisrory curve is used to judge whether the slope seismic failure is feasible. |
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| Keywords: | soil slope shaking table test l strain measurement~ damage mechanism |
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