1. NIHON UNIVERSITY, Graduate School of Civil Engineering, College of Industrial Technology(1-2-1, Izumi-cho, Narashino-shi, Chiba 275-8575, Japan)
2. NIHON UNIVERSITY, Dept. of Civil Engineering, College of Industrial Technology(1-2-1, Izumi-cho, Narashino-shi, Chiba 275-8575, Japan)
3. NIHON UNIVERSITY, College of Industrial Technology(1-2-1, Izumi-cho, Narashino-shi, Chiba 275-8575, Japan)
4. KAJIMA ROAD CORPORATION, Manufacturing Technique Headquarters Engineering Department(1-7-27, Koraku, Bunkyo-ku, Tokyo 112-8566, Japan)