1. College of Civil Engineering and Architecture; Guangxi University; Nanning Guangxi, 530004 China
2. Guangxi Key Laboratory of Disaster Prevention and Engineering Safety; Guangxi University; Nanning Guangxi, 530004 China
3. Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education; Guangxi University; Nanning Guangxi, 530004 China
4. Institute of Africa Water Resources and Environment; Hebei University of Engineering; Handan Hebei, 056038 China
5. Department of Scientific Computing; Florida State University; Tallahassee FL, 32306 USA