FAN Chao1,3, YU Kefu2, MENG Qingshan3, ZENG Weixing3
(1.College of Civil Engineering & Architecture, Guangxi University, Nanning 530004;
2.School of Marine Sciences, Guangxi University, Nanning 530004;
3.Institute of Rock and Soil Mechanics,Chinese Academy of Sciences, Wuhan 430071)