1. School of Civil and Architectural Engineering, Guilin University of Technology, Guilin 541000, China
2. Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin 541004, China
3. School of Civil Engineering, Liaoning Technical University, Fuxin 123000, China
4. Institute of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China