Nodira Saydulla kizi , A. .; Olimjon Dilshod’ son, Y. .; Elmurod Zulfiqor’s son, X. . PREPARATION FOR THE DEVELOPMENT OF ROCKS, WHICH ARE CONSIDERED COMPLEX IN TERMS OF PHYSICAL AND MECHANICAL CHARACTERISTICS IN A QUARRY, BY BLASTING WITH THE HELP OF AN ELECTRIC PULSE. NOIV 2022, 1, 65-69.