Fluctuations of the ground surface at blasting operations on tunnel structures Matlab Ishmamatov, Nurillo Kulmuratov, Nasriddin Kuldashov, Mirjalol Choriev and Nasriddin Axmedov E3S Web Conf., 417 (2023) 06004 Published online: 21 August 2023 DOI: 10.1051/e3sconf/202341706004