Institution: | 1.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology,Xuzhou,P.R. China;2.School of Mechanics and Civil Engineering, China University of Mining and Technology,Xuzhou,P.R. China;3.Institute of Engineering, Polytechnic of Porto, Department of Electrical Engineering,Porto,Portugal;4.Department of Mathematics,Cankya University,Balgat,Turkey;5.Institute of Space Sciences,Bucharest,Romania |