AUTHOR=Xu Xu-tang , Chen Xiang-long , Cai Ye-qing , Xu Xiang TITLE=Microstructure and macro-mechanical properties of residual soil subjected to repeated hygroscopic cycles JOURNAL=Frontiers in Earth Science VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1528098 DOI=10.3389/feart.2025.1528098 ISSN=2296-6463