中南大学学报（自然科学版）2026，Vol.57Issue(7)：3215-3224,10.DOI:10.11817/j.issn.1672-7207.2026.07.026
真空预压联合水袋堆载法加固砂质吹填土地基离心模型试验研究
Centrifugal model testing of vacuum preloading combined with water bag loading method for reinforcing sandy reclaimed land foundations
摘要
Abstract
For a sandy fill foundation project in Dongguan City,centrifuge model tests were conducted to investigate the consolidation characteristics of sandy fill foundations reinforced using a combined vacuum preloading and water bag loading method.The variation patterns of pore pressure dissipation,earth pressure,and consolidation settlement during the consolidation process of sandy fill foundations were revealed.These findings were validated using pre-and post-consolidation moisture content and shear strength,and compared with on-site engineering monitoring results.The results indicate that the double drainage board achieves 1.387 times of the final settlement of the single drainage board.After 800 s,settlement rates,pore water pressure and earth pressure across all zones gradually stabilizes,with drainage boards becoming clogged.Compared to field monitoring results,the settlement measurements from the centrifugal model tests for the sand-filled embankment foundation are consistent with the on-site monitoring results.The centrifugal model tests effectively simulate field construction conditions,which provides valuable guidance for the project.关键词
砂质吹填土/排水固结/离心模型/软土地基Key words
sandy dredged fill/drainage consolidation/centrifugal modeling/soft soil foundation分类
建筑与水利引用本文复制引用
陈秋南,许笑翟,谢云鹏,王冠皓,周文兵..真空预压联合水袋堆载法加固砂质吹填土地基离心模型试验研究[J].中南大学学报（自然科学版）,2026,57(7):3215-3224,10.基金项目
国家自然科学基金资助项目(52478341) （52478341）
湖南省自然科学基金重点资助项目(2025JJ30022) （2025JJ30022）
湖南省研究生科研创新项目(CX20231018)(Project(52478341)supported by the National Natural Science Foundation of China （CX20231018）
Project(2025JJ30022)supported by the Natural Science Foundation Key Project of Hunan Province （2025JJ30022）
Project(CX20231018)supported by the Postgraduate Scientific Research Innovation Project of Hunan Province) （CX20231018）
