| 沥青混凝土心墙堆石坝三维地震反应分析 |
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| 引用本文： | 朱晟.沥青混凝土心墙堆石坝三维地震反应分析[J].岩土力学,2008,29(11):2933-2938. |
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| 作者姓名： | 朱晟 |
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| 作者单位： | 河海大学 水电工程学院，南京 210098 |
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| 摘 要： | 基于沥青混凝土的动力三轴试验资料，建立了相应的动力计算模型。采用三维有效应力动力分析方法，结合即将开工的某沥青混凝土心墙堆石坝，利用TSDA程序计算分析了坝体的加速度、动应力反应和大坝的地震永久变形，并对坝基细砂层在地震过程中的液化问题进行了研究，认为沥青混凝土心墙具有良好的抗震性能，大坝在地震过程中是安全的；坝基砂Ⅲ层可能发生液化，需要进行加固处理，分析结论可供同类工程建设参考。
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| 关 键 词： | 沥青混凝土 堆石坝 三维动力分析 地震永久变形 砂层液化 |
| 收稿时间： | 2007-08-20 |
3-D seismic response analysis of rockfill dam with asphalt concrete core |
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| ZHU Sheng.3-D seismic response analysis of rockfill dam with asphalt concrete core[J].Rock and Soil Mechanics,2008,29(11):2933-2938. |
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| Authors: | ZHU Sheng |
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| Institution: | College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | Based on dynamic triaxial test data of asphalt concrete, a dynamic constitutive model is suggested. By 3-D dynamic effective stress analysis method, combining with an asphalt concrete core rockfill dam to be built, seismic responses of acceleration, dynamic stress, seism-induced permanent deformation and seism-induced sand’s liquefaction are analyzed by using TSDA program. The dam is safe because of well aseismatic performance of asphalt concrete core, third-layer sand in the alluvium may be liquefied and need be reinforced.The conclusion could be referred to the analogous engineering. |
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| Keywords: | asphalt concrete rockfill dam 3-D dynamic analysis seism-induced permanent deformation liquefaction of sand |
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