Rock Pressure Manifestation in Development Workings Advanced in a Thick Coal Seam Konstantin Filimonov, Danil Zorkov, Sergey Tsibaev and Aleksandr Kucherenko E3S Web Conf., 174 (2020) 01037 Published online: 18 June 2020 DOI: 10.1051/e3sconf/202017401037