School of Mining Engineering North China University of Science and Technology Tangshan 063210 ChinaDevelopment and Safety Key Lab of Hebei Province Tangshan 063210 China;
School of Mining Engineering North China University of Science and Technology Tangshan 063210 ChinaDevelopment and Safety Key Lab of Hebei Province Tangshan 063210 China;
Department of Science and Technology North China University of Science and Technology Tangshan 063210 China;