| 土工合成材料加筋土应变软化特性及弹塑性分析 |
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| 引用本文： | 张孟喜,孙钧.土工合成材料加筋土应变软化特性及弹塑性分析[J].土木工程学报,2000,33(3):104-107. |
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| 作者姓名： | 张孟喜 孙钧 |
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| 作者单位： | 1. 兰州铁道学院
2. 同济大学 |
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| 基金项目： | 甘肃省自然科学基金资助项目 |
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| 摘 要： | 在土工合成材料加筋土应变软化特性试验研究的基础上,提出了适合该工程特性的三段式弹塑性计算模型,并对加筋土挡墙进行了弹塑性有限元分析,分析结果与模型试验结果基本吻合.
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| 关 键 词： | 应变软化 土工合成材料 加筋土挡墙 有限元 弹塑性分析 |
| 修稿时间： | 1999年3月5日 |
STRAIN SOFTENING BEHAVIOR AND AN ELASTIC-PLASTIC ANALYSIS OF REINFORCED EARTH WITH GEOSYNTHETICS |
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| Zhang Mengxi,Sun Jun.STRAIN SOFTENING BEHAVIOR AND AN ELASTIC-PLASTIC ANALYSIS OF REINFORCED EARTH WITH GEOSYNTHETICS[J].China Civil Engineering Journal,2000,33(3):104-107. |
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| Authors: | Zhang Mengxi Sun Jun |
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| Affiliation: | Zhang Mengxi; Sun Jun(Lanzhou Railway Institute) (Tongji University) |
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| Abstract: | An expemental study of reinforeed earth with geosynthetics shows that it has strain-sofleing behavior. Based on this be-havior, a total stress-strain model with 3 stages (elastic nonlinear, plastic strain sofening and plastic flow) in accordancewith its engineering properties was proposed. The elastic-plastic constitutive equation is derived in plane strain and 3-dimen-sion situation respectively. An analysis of reinforeed earth retaining walls with geosynthetics by finite element with this modlhas been carried out, whose result is in good agreement with those of the model tests. The proposed calculating model can beused in the design of reinforced earth structure with geosynthetics. |
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| Keywords: | strain softening geosynthetics reinforced earth retaining walls finite element elastic-plastic analysis |
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