Multi objective optimization of asphalt concrete panel in reservoir bottom excavation and filling area based on RSM-CA-MOEA
Description
Document 1 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the thickened area width, and the thickened area thickness. Document 2 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the excavation slope ratio, and the thickened area width. Document 3 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the compaction density, and the thickened area width. Document 4 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the excavation slope ratio, and the thickened area thickness. Document 5 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the compaction density, and the thickened area thickness. Document 6 illustrates the nonlinear interaction between the settlement deformation gradient of asphalt concrete panel, the excavation slope ratio, and the compaction density. Document 7 presents the Pareto front solution set for a multi-objective optimization problem, quantitatively illustrating the trade-off relationship between the two objective functions: tensile strain of asphalt concrete panels and volume of thickened areas. Document 8 illustrates the settlement deformation distribution of the asphalt concrete panel before and after optimization along the excavation and filling junction line. Document 9 illustrates the settlement deformation distribution of the asphalt concrete panel before and after optimization along the section M-M. Document 10 illustrates the settlement deformation distribution of the asphalt concrete panel before and after optimization along the section N-N. Document 11 illustrates the tensile strain distribution of the asphalt concrete panel before and after optimization along the excavation and filling junction line. Document 12 illustrates the tensile strain distribution of the asphalt concrete panel before and after optimization along the section M-M. Document 13 illustrates the tensile strain distribution of the asphalt concrete panel before and after optimization along the section N-N.
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Steps to reproduce
This paper investigated behavior of asphalt concrete panel in the excavation and filling area. Then, a multi-objective optimization model for the panel in reservoir bottom excavation and filling area was established. Panel thickened area width b and thickness h, excavation slope ratio i of bedrock at the excavation and filling area, and backfill compaction density ρ were selected as optimization parameters. Settlement deformation gradient at the excavation and filling area and strain of the panel were selected as constraints. Tensile strain and volume of the panel were used as safety and economic objectives, respectively. A four-factor and three-level experimental design for finite element structural analysis was constructed using Box-Behnken design method. Response surface method was applied to establish correlation between constraints, safety objectives, and optimization parameters. Then, a clustering-based adaptive evolutionary algorithm (CA-MOEA) was used to conduct multi-objective optimization solution for the structural parameters of the asphalt concrete panel. The optimization method was applied in structural optimization of Zhen'an pumped storage power station in China.
Institutions
- Xi'an University of TechnologyShaanxi, Xi'an