| 饱和开挖土坡稳定性状的流固耦合有限元分析 |
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| 引用本文： | 王成华,金小惠,王晓健.饱和开挖土坡稳定性状的流固耦合有限元分析[J].天津大学学报(自然科学与工程技术版),2003,36(5):605-609. |
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| 作者姓名： | 王成华 金小惠 王晓健 |
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| 作者单位： | [1]天津大学建筑工程学院，天津300072 [2]河北建筑科技学院建筑系，河北邯郸056038 |
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| 摘 要： | 以Biot固结理论为基础对饱和开挖土坡的稳定性进行非线性有限元数值分析，通过有限元分析可以较准确地求解土坡内部的有效应力场、位移场和孔隙水压力场；可以确定土坡的安全系数及相应的临界滑动面随时高的变化；能够对开挖土坡变形和稳定性的长期性状进行预测。
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| 关 键 词： | 饱和开挖土坡 稳定性 流固耦合有限元分析 Biot固结理论 Duncan-Chang模型 安全系数 临界滑动面 |
| 文章编号： | 0493-2137(2003)05-0605-05 |
| 修稿时间： | 2002年6月26日 |
A Coupled Flow-Deformation Finite Element Analysis of the Stability Behavior of Excavated Saturated Soil Slopes |
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| Abstract: | The stability behavior of excavated sa tu rated soil slopes is studied by means of a nonlinear finite element method based on Biot's consolidation theory. Through numerical analyses, the effective stre ss fields, deformation fields as well as pore water pressure fields in the slope s can be determined with good accuracy, and the variation in factor of safety ag ainst slip failure, and the corresponding critical slip surface can also be dete rmined in association with the stress fields, which enables the prediction of th e long term deformation and stability behavior of excavated slopes. |
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| Keywords: | Biot's consolidation theory coupled an alysis Duncan-Chang's model factor of safety critical slip surface |
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