Jie Ren
College of Mechanics and Materials, Hohai University, Nanjing 210024, P. R. China
China

Yuan Wang
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210024, P. R. China
China

Di Feng
College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, P. R. China
China

Jiakun Gong
College of Mechanics and Materials, Hohai University, Nanjing 210024, P. R. China Department of Geoscience and Engineering, Delft University of Technology, Delft 2628 CN, the Netherlands