1. Ph.D. Candidate, Dept. of Construction Engineering, Chaoyang Univ. of Technology, 168 Gifeng E. Rd., Wufeng District, Taichung City 41349, Taiwan.
2. Associate Professor, Dept. of Construction Engineering, Chaoyang Univ. of Technology, 168 Gifeng E. Rd., Wufeng District, Taichung City 41349, Taiwan.
3. Professor and Dean, College of Science and Engineering, Chaoyang Univ. of Technology, 168 Gifeng E. Rd., Wufeng District, Taichung City 41349, Taiwan.
4. Technical Support Engineer, ACE Geosynthetics, No. 33, Jing 3 Rd., C.E.P.Z., Wuchi District, Taichung City 43541, Taiwan.