同济大学学报（自然科学版）2026，Vol.54Issue(1)：76-86,11.DOI:10.11908/j.issn.0253-374x.24318
膨润土类工程屏障溶质耦合运移理论研究进展
Research Progress on Coupled Solute Transport Theory in Bentonite-Based Engineering Barriers
摘要
Abstract
This paper provides a detailed review of research on isothermal coupled solute transport(ICST)theory and,and compares solute flux predictions from different theoretical models using COMSOL numerical software.The results show that ICST models include both the counter-diffusion(CD)model and the salt-diffusion(SD)model.Although the flux predictions of the CD and SD models are basically consistent,the SD model is theoretically more accurate.The advection-diffusion(AD)model overestimates solute transport.However,when the restricted diffusion is considered,the flux predictions obtained by the AD model substantially diminish the discrepancies observed with the ICST models.In practical applications,it is recommended to appropriately use the SD model or ADC model considering site-specific conditions.Given the complexity of the near-field environments in engineering barriers,future theoretical research should focus on elucidating coupled solute transport mechanisms under non-isothermal,unsaturated,and soil deformation conditions,and on developing a fully coupled thermo-hydro-mechanical-chemical solute transport model that accurately reflects the effects of concentration and temperature on model parameters.关键词
膨润土/工程屏障/半透膜/化学渗透/溶质运移/理论模型Key words
bentonite/engineering barrier/semipermeable membrane/chemico-osmosis/solute transport/theoretical model分类
资源环境引用本文复制引用
王琼,胡广,苏薇,叶为民,陈永贵..膨润土类工程屏障溶质耦合运移理论研究进展[J].同济大学学报（自然科学版）,2026,54(1):76-86,11.基金项目
国家自然科学基金(42577180,42002289,42207227) （42577180,42002289,42207227）
国家杰出青年科学基金(42125701) （42125701）
中国博士后科学基金(2022M722428) （2022M722428）
