Rock Deformation Behavior Near Excavations Under the Influence of High Tectonic Stress in Coal Seam V-12, “Severnaya” Mine, JSC “Urgalugol”Pavel Grechishkin, Evgeny Razumov, Olga Petrova, Alexey Kozlov and Evgeny AushevE3S Web Conf., 21 (2017) 01006DOI: https://doi.org/10.1051/e3sconf/20172101006