ZHOU Haijun1,2,HE Jiyuan1,2,YANG Xia1,2,XIANG Ning1,2
(1. Institute of Urban Smart Transportation & Safety Maintenance,Shenzhen University,Shenzhen 518060,China; 2. Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering(Shenzhen University),Shenzhen 518060,China)