TY - CPAPER AU - Olena Sdvyzhkova AU - Dmytro Babets AU - Serik Moldabayev AU - Kanay Rysbekov AU - Madiyar Sarybayev TI - MATHEMATICAL MODELING A STOCHASTIC VARIATION OF ROCK PROPERTIES AT AN EXCAVATION DESIGN T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining PY - 2020 SP - 165 EP - 172 DO - 10.5593/sgem2020/1.2/s03.021 PB - STEF92 Technology ER -