1. School of Highway, Chang'an Univ., South Erhuan Middle Section, Xia'n, Shaanxi, 710064, CN, e-mail: wanghainian@aliyun.com
2. School of Highway, Chang'an Univ., South Erhuan Middle Section, Xia'n, Shaanxi, 710064, CN, e-mail: zlw19861108@aliyun.com
3. School of Civil Engineering, Lanzhou Univ. of Technology, Lanzhou, Gansu 730050, CN, e-mail: cdlilian@126.com
4. Department of Civil and Environmental Engineering, Michigan Technological Univ., 1400 Townsend Drive, Houghton, Michigan, 49931-1295 US, e-mail: zyou@mtu.edu
5. Assistant Professor, Department of Civil Engineering, Aswan Faculty of Engineering, Aswan Univ., EG, e-mail: daali@mtu.edu