Research on surface frost heave and thaw settlement law and optimization of frozen wall thickness in shallow tunnel using freezing method
ZHENG Li-fu, GAO Yong-tao, ZHOU Yu, TIAN Shu-guang,
Rock and Soil Mechanics . 2020, (6): 2110 -2121 .  DOI: 10.16285/j.rsm.2019.6102