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      Baohua Guo Professor of Rock mechanics Department of Traffic Engineering, Henan Polytechnic University Century Road 2001#, Jiaozuo, Henan, China, 454000 Phone: +86 13949669615; E-mail: guobaohua@139.com Experience: Professor, 2021 鈥� Current Department of Traffic Engineering, Henan Polytechnic University, Jiaozuo, Henan, China Associate Professor, 2011 鈥� 2021 Department of Traffic Engineering, Henan Polytechnic University, Jiaozuo, Henan, China Visiting Sc... more..>>