Nonuniform stress state of a hoisting shaft lining as a result of disturbance of the ground freezing technologyOleksii Tiutkin, Vitalii Miroshnyk, Anatolii Radkevych and Ahmad AlkhdourE3S Web Conf., 109 (2019) 00099DOI: https://doi.org/10.1051/e3sconf/201910900099