Multiscale study on the shearing behaviour of unsaturated basalt fibre modified red mudstone as subgrade fill materialJiahang Xu, Dariusz Wanatowski, Xianfeng Liu, Shengyang Yuan and Jie MaE3S Web Conf., 642 (2025) 03033DOI: https://doi.org/10.1051/e3sconf/202564203033