水力发电学报2025，Vol.44Issue(1)：64-76,13.DOI:10.11660/slfdxb.20250106
高心墙堆石坝筑坝料本构模型参数反演策略对比研究
Comparative study of inversion strategies for constitutive model parameters of materials in high core wall rockfill dams
摘要
Abstract
As rockfill dams advance in height from the 200-meter to 300-meter class,a coordinated control of dam deformation becomes particularly important,and their deformation behaviors are commonly assessed using parametric inversion-based finite element stress-deformation analysis.To investigate the applicability of different parametric inversion strategies to high-core-wall rockfill dams,this paper presents a comparative study of the two strategies-parametric joint inversion and decoupled inversion.We use the neural network to construct an agent model for the analysis by FEM,and adopt a population-intelligent iterative optimization algorithm to calculate the inversion of static,rheological,and humidification model parameters.Compared with the parameter joint inversion that features with less manual intervention and high efficiency,the decoupled inversion reflects more reasonably the influence of the filling and impounding process on rockfill dam deformation through a staged and zoned inverting procedure.It produces better model parameters and dam body deformation calculations in good agreement with measurements,thus achieving better effects in revealing deformation evolution and its spatial distribution trends in a dam body during filling,impounding and long-term operation.关键词
高心墙堆石坝/监测数据/参数反演/智能优化算法/解耦反演Key words
high core wall rockfill dam/monitoring datum/parameter inversion/intelligent optimization algorithm/decoupled inversion分类
建筑与水利引用本文复制引用
苗梦瑶,马刚,艾志涛,程欣悦,汪家伟,周伟..高心墙堆石坝筑坝料本构模型参数反演策略对比研究[J].水力发电学报,2025,44(1):64-76,13.基金项目
国家自然科学基金项目(52322907 （）
52179141) （）
水电水利规划设计总院有限公司科技项目经费资助(ZYGN-KW2310-051) （ZYGN-KW2310-051）
