| 混凝土重力坝沿建基面滑动的尖点突变模型研究 |
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| 引用本文： | 刘健,刘康,王广月.混凝土重力坝沿建基面滑动的尖点突变模型研究[J].山东大学学报(工学版),2006,36(1):65-68. |
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| 作者姓名： | 刘健 刘康 王广月 |
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| 作者单位： | 1. 山东大学,士建与水利学院,山东,济南,250061
2. 山东省梁山县水利局,山东,梁山,272600 |
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| 摘 要： | 应用突变理论，根据混凝土重力坝的特点，建立了一个考虑裂隙介质应变软化和水致弱化的尖点突变模型，并对混凝土重力坝沿建基面滑动的机理进行了分析，指出发生突变的必要条件取决于系统的内部特性，外部因素的影响起触发作用.也根据突变模型给出了系统突变时的临界位移值和临界外力.
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| 关 键 词： | 重力坝 滑动失稳 突变理论 尖点突变模型 |
| 文章编号： | 1672-3961(2006)01-0065-04 |
| 收稿时间： | 2004-10-25 |
| 修稿时间： | 2004年10月25 |
Cusp catastrophe model of concrete gravity dam sliding along the contact surface between dam and foundation |
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| LIU Jian,LIU Kang,WANG Guang-yue.Cusp catastrophe model of concrete gravity dam sliding along the contact surface between dam and foundation[J].Journal of Shandong University of Technology,2006,36(1):65-68. |
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| Authors: | LIU Jian LIU Kang WANG Guang-yue |
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| Affiliation: | 1. School of Civil Engineering,Shandong University,Jinan 250061,China;2.Liangshan Water Conservancy Bureau,Liangshan 272600,China |
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| Abstract: | According to characters of concrete gravity dam,a cusp catastrophe model of concrete gravity dam sliding along the contact surface between dam and foundation is established considering strain softening and water-permeating softening characters of the crack.Sliding mechanism of concrete gravity dam is analyzed.The authors point out that inner properties of the system is the main factor of instability of sliding while the action of outside environment will trigger the catastrophe.By analyzing the model,the critical displacement and force of the system corresponding to the catastrophe are presented. |
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| Keywords: | gravity dam instability of sliding catastrophe theory cusp catastrophe model |
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