土木工程与管理学报2025，Vol.42Issue(3)：54-63,10.DOI:10.13579/j.cnki.2095-0985.2025.20240406
基于Kriging代理模型的CS-MS路堤三维稳定性分析
Three-dimensional Stability Analysis of CS-MS Embankment Based on Kriging Surrogate Model
摘要
Abstract
The consolidation-solidification mud slurry(CS-MS)treated by the"CS"method can be used in embankment filling works.In order to study the stability of CS-MS embankments,this paper proposes a method to establish a three-dimensional non-stationary random field model of CS-MS em-bankments based on the trend characteristics and stochastic characteristics of the spatial distribution of the undrained shear strength parameters of CS-MS.A Kriging surrogate model combined with the local averaging method is constructed to compute the safety coefficient of CS-MS embankments.This model is compared with the random finite difference method(RFDM),and the applicability is verified.Fi-nally,the influence of CS-MS embankments strength fluctuation and trend parameters on the slope safety coefficient is analyzed based on the Kriging surrogate model.The results show that the safety factor predictions of the Kriging surrogate model are consistent with the RFDM calculation.The Kriging surrogate model demonstrates strong applicability in the range of target reliability index(2.2-3.0)in embankment stability analysis.Compared with the RFDM method,the computational efficiency of the Kriging surrogate model is significantly improved,and it has high computational ac-curacy and applicability.The stability of CS-MS embankments increases significantly with the increase in the mean value of the undrained shear strength fluctuation parametersu0,and decreases with the in-crease in the variation coefficient of su0 and the variation coefficient of the trend termadjustment coeffi-cient 77.The results can provide theoretical references for the design and maintenance of CS-MS em-bankment.关键词
非平稳随机场/Kriging代理模型/CS-MS/路堤/稳定性Key words
non-stationary random field/Kriging surrogate model/CS-MS/embankment/stability分类
建筑与水利引用本文复制引用
抗兴培,杭红星,何海妮,杨亮..基于Kriging代理模型的CS-MS路堤三维稳定性分析[J].土木工程与管理学报,2025,42(3):54-63,10.基金项目
湖北省重点研发计划(2022BAA068) （2022BAA068）
铁四院科技研究开发计划(2020K047) （2020K047）
