基于GeoStudio建模与集成学习的土石坝渗流预测模型OA
Seepage prediction modeling for earth-rock dams based on GeoStudio and ensemble learning
针对传统土石坝渗流预测模型与机器学习方法在建模层面难以协同互补、难以兼顾物理可解释性与非线性刻画能力的问题,提出了一种融合 GeoStudio 软件建模与 Stacking 集成学习的改进渗流预测模型,以提升模型的预测精度.该改进模型首先利用 GeoStudio 的 SEEP/W 模块开展"仅限饱和"条件下的数值模拟,随后基于 Stacking集成学习框架,拟合该模型输出值与监测数据之间的残差,通过残差修正提升了模型的预测性能.相较于传统土石坝渗流预测模型,改进模型的训练集R2 由0.86提升至0.96,测试集R2 由0.79提升至0.89,其他各项模型评价指标(MAE、MAPE、RMSE)也显著改善.改进模型结合了软件建模和机器学习方法的优势,兼具传统模型的物理可解释性与算法的灵活性,为土石坝渗流预测提供了一种新的建模方法.
Conventional seepage prediction models lack effective integration with machine learning meth-ods at the modeling level,resulting in incompetence in achieving both physical interpretability and non-linear representation.To address this challenge,an improved seepage prediction model integrating GeoS-tudio modeling and Stacking ensemble learning is proposed to enhance prediction accuracy.This model first utilizes the SEEP/W module of GeoStudio for numerical simulation under"saturated only"condi-tions.Subsequently,based on the Stacking ensemble learning framework,it fits the residuals between the numerical simulation outputs and the monitoring data,thereby improving prediction performance through residual correction.Compared with conventional seepage prediction models for earth-rockfill dams,the R2 on the training set increases from 0.86 to 0.96,and on the test set from 0.79 to 0.89.Other model e-valuation metrics(MAE,MAPE,RMSE)also show significant improvement.The improved model in-tegrates the strengths of software modeling and machine learning,merging the physical interpretability of conventional statistical models with the flexibility of algorithmic approaches.It provides a novel modeling approach to seepage prediction for earth-rockfill dams.
曾传越;赵新宇;钱武文;桑红辉
江西水利电力大学 水土保持学院,江西 南昌 330099江西水利电力大学 水土保持学院,江西 南昌 330099江西水利电力大学 水土保持学院,江西 南昌 330099江西水利电力大学 水土保持学院,江西 南昌 330099
建筑与水利
土石坝渗流预测滞后效应测压管水位集成学习粒子群算法
earth-rockfill damseepage predictionhysteresis effectpiezometric levelensemble learningparticle swarm optimization
《水资源与水工程学报》 2026 (3)
144-151,8
国家自然科学基金项目(52169009)江西省水利科技重点项目(202527ZDKT09)
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