AUTHOR=Deng Qinghai , Fu Hao , Wang Junchao , An Xiaobiao , Lyu Xianzhou TITLE=Macro-meso failure mechanism and strength criterion of frozen weakly cemented sandstone under triaxial unloading JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1518849 DOI=10.3389/feart.2024.1518849 ISSN=2296-6463