| 拱坝坝基加固的三维数值模拟 |
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| 引用本文： | 彭云枫.拱坝坝基加固的三维数值模拟[J].岩土力学,2008,29(Z1):95-100. |
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| 作者姓名： | 彭云枫 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 天然的坝基中总是存在不同程度的地质缺陷,坝基的加固处理是大坝建设的重要内容.应用三维有限元数值模拟方法,采用模拟岩石体渐进破坏过程的超载法和强度折减法,对含软弱夹层的拱坝坝基在加固前后的安全度给出了定量的结果,对加固措施的效果作出了定量的评价,并根据计算对比分析对加固设计进行细部优化,使其达到最佳效果,可为坝基加固处理设计提供直接依据.研究表明,通过采用有限元数值模拟方法,对坝基岩石体的安全性可以定量地做出评价,具有明显的优越性.
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| 关 键 词： | 坝基 软弱夹层 数值模拟 加固措施 |
| 收稿时间： | 2008-07-25 |
Three-dimensional numerical simulation of treatment of arch dam foundation |
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| PENG Yun-feng.Three-dimensional numerical simulation of treatment of arch dam foundation[J].Rock and Soil Mechanics,2008,29(Z1):95-100. |
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| Authors: | PENG Yun-feng |
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| Institution: | State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | Geological defects always exist in natural foundation more or less.The foundation treatment is a significant component in dam construction.Based on three-dimensional finite element method,the failure process of dam foundation with weak interlayer is studied with overload method and strength reduction method respectively;the quantitative results of the foundation safety are gotten by comparing with before and after foundation treatment to show the treatment effect.Comparing the treatment effect of each desig... |
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| Keywords: | foundation weak interlayer numerical simulation treatment method |
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