| 土工格栅加筋堆石坝的数值模拟研究 |
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| 引用本文： | 冯志刚,朱俊高.土工格栅加筋堆石坝的数值模拟研究[J].岩土力学,2006,27(Z2):480-484. |
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| 作者姓名： | 冯志刚 朱俊高 |
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| 作者单位： | 河海大学 岩土工程科学研究所，南京 210098 |
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| 摘 要： | 运用复合材料法模拟土工格栅加筋单元，对格栅加筋堆石坝坝顶堆石进行了数值模拟。计算中，土石料采用非线性弹性模型模拟，并用拟静力法模拟地震动荷载。对无地震和有地震两种情况下的加筋效果及加筋层数和格栅模量对加筋效果的影响进行了分析研究，并对格栅加筋机理加以解释。数值模拟结果表明：格栅加筋有利于增加土石坝坝顶堆石的稳定性和抗震性能，随加筋层数和格栅模量的增加，加筋效果愈加显著。
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| 关 键 词： | 土工格栅 加筋 数值模拟 堆石坝 拟静力法 |
| 收稿时间： | 2006-11-21 |
Numerical simulation of reinforcement of rockfill dam with geogrids |
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| FENG Zhi-gang,ZHU Jun-gao.Numerical simulation of reinforcement of rockfill dam with geogrids[J].Rock and Soil Mechanics,2006,27(Z2):480-484. |
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| Authors: | FENG Zhi-gang ZHU Jun-gao |
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| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | Based on the assumption that geogrid and its surrounding soils are a composite material, the effect of reinforcement of dam crest rockfill with geogrids is studied using nonlinear elastic finite element method. The influence of layer number and modulus of geogrids on effect of reinforcement is investigated. The results indicate that reinforcement is helpful in increasing stability and earthquake-resistant ability of dam crest rockfill. It also shows that effect of reinforcement becomes more evident with more layers and large modulus of geogrid. |
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| Keywords: | geogrid reinforcement numerical simulation rockfill dam quasi-static method |
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