Parameter Estimation for Coupled Hydromechanical Simulation of Dynamic Compaction Based on Pareto Multiobjective Optimization
Joint Authors
Wang, Wei
Zhang, Lu-Lu
Chen, Jin-Jian
Wang, Jian-Hua
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-13
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
This paper presented a parameter estimation method based on a coupled hydromechanical model of dynamic compaction and the Pareto multiobjective optimization technique.
The hydromechanical model of dynamic compaction is established in the FEM program LS-DYNA.
The multiobjective optimization algorithm, Nondominated Sorted Genetic Algorithm (NSGA-IIa), is integrated with the numerical model to identify soil parameters using multiple sources of field data.
A field case study is used to demonstrate the capability of the proposed method.
The observed pore water pressure and crater depth at early blow of dynamic compaction are simultaneously used to estimate the soil parameters.
Robustness of the back estimated parameters is further illustrated by a forward prediction.
Results show that the back-analyzed soil parameters can reasonably predict lateral displacements and give generally acceptable predictions of dynamic compaction for an adjacent location.
In addition, for prediction of ground response of the dynamic compaction at continuous blows, the prediction based on the second blow is more accurate than the first blow due to the occurrence of the hardening and strengthening of soil during continuous compaction.
American Psychological Association (APA)
Wang, Wei& Zhang, Lu-Lu& Chen, Jin-Jian& Wang, Jian-Hua. 2015. Parameter Estimation for Coupled Hydromechanical Simulation of Dynamic Compaction Based on Pareto Multiobjective Optimization. Shock and Vibration،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077933
Modern Language Association (MLA)
Wang, Wei…[et al.]. Parameter Estimation for Coupled Hydromechanical Simulation of Dynamic Compaction Based on Pareto Multiobjective Optimization. Shock and Vibration No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1077933
American Medical Association (AMA)
Wang, Wei& Zhang, Lu-Lu& Chen, Jin-Jian& Wang, Jian-Hua. Parameter Estimation for Coupled Hydromechanical Simulation of Dynamic Compaction Based on Pareto Multiobjective Optimization. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1077933
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1077933