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| Development and application of a structured clay model in FLAC |
| Received:November 04, 2016 Revised:May 09, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201706010 |
| KeyWord:finite difference constitutive model clay numerical analysis shear band |
| Author | Institution |
| 杨杰 |
同济大学 岩土及地下工程教育部重点实验室, 上海 ;同济大学 地下建筑与工程系, 上海 ;南特中央理工大学, 南特 法国 44300 |
| 尹振宇 |
同济大学 岩土及地下工程教育部重点实验室, 上海 ;同济大学 地下建筑与工程系, 上海 ;南特中央理工大学, 南特 法国 44300 |
| 金银富 |
南特中央理工大学, 南特 法国 44300;上海交通大学 土木工程系, 上海 |
| 张冬梅 |
同济大学 岩土及地下工程教育部重点实验室, 上海 ;同济大学 地下建筑与工程系, 上海 |
| 黄宏伟 |
同济大学 岩土及地下工程教育部重点实验室, 上海 ;同济大学 地下建筑与工程系, 上海 |
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| Abstract: |
| FLAC is widely used in rock and geotechnical engineering.Currently FLAC provides only a few constitutive models,which limits its range and accuracy of application.Based on the developing platform provided by FLAC,a bounding surface plasticity model for structured clays is implemented into FLAC under the FISH environment.Firstly,the key techniques and method of implementation are introduced with the basic principles of bounding surface model.In order to evaluate the accuracy of the model implementation under different stress paths,the numerical tests of different conventional laboratory tests on single element are performed and compared to the results obtained by FORTRAN program.Further more,a biaxial shearing test showing the development of shear band is then simulated to show the model ability on simulating a multi-element model,the mesh dependency and loading velocity effect are also analyzed.Finally,a case of cut slope is simulated to examine the application of the implemented model of structured clay in FLAC in geotechnical engineering. |
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