1. Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Viet Nam;
2. Kokudo Kaihatsu Center Co. Ltd., Hakusan, Japan;
3. Faculty of Geosciences and Civil Engineering, Kanazawa University, Kanazawa, Japan;
4. Central Nippon Highway Engineering Nagoya Co. Ltd., Kanazawa, Japan