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FEM and ANN analyses of short and tall geosynthetic reinforced soil walls:Evaluation of various effective aspects and ASSHTO acceptable design methods

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Frontiers of Structural and Civil Engineering 2024年第10期18卷 1576-1594页

作者： Hamid Reza RAZEGHI Ali Akbar Heshmati RAFSANJANI Seyed Meisam ALAVI School of Civil Engineering Iran University of Science and TechnologyTehran 13114-16846Iran

In addition to confined investigations on tall geosynthetic reinforced soil(GRS)walls,a remarkable database of such walls must be analyzed to diminish engineers’concerns regarding the American Association of State Highway and Transportation Officials(aashto)simplified or simplified stiffness Method in *** are also uncertainties regarding reinforcement load distributions of GRS walls at the ***,the current study has implemented a combination of finite element method(FEM)and artificial neural network(ANN)to distinguish the performance of short and tall GRS walls and assess the aashto design methods based on 88 FEM and 10000 ANN *** were conspicuous differences between the effectiveness of stiffness(63%),vertical spacing(22%),and length of reinforcements(14%)in the behavior of short and tall walls,along with predictions of geogrid load *** differences illustrated that using the simplified Method may exert profound repercussions because it does not consider wall ***,the simplified stiffness Method(which incorporates wall height)predicted the reinforcement load distributions at backfill and connections ***,a Multilayer Perceptron(MLP)algorithm with a low average overall relative error(up to 2.8%)was developed to propose upper and lower limits of reinforcement load distributions,either at backfill or connections,based on 990000 ANN predictions.

关键词： geosynthetics short and tall GRS walls artificial intelligence MLP aashto simplified and simplified stiffness methods

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