[1] China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China
[2] China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Xuzhou 221116, Jiangsu, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Econ & Management, Qingdao 266590, Shandong, Peoples R China
[4] Shanghai Fire Res Inst MEM, Shanghai 200032, Peoples R China