Khurshidbek MAKHMUDOV
Department of Civil Engineering, Graduate School of Engineering, Kyushu Univ., 774 Motooka, Nishi-ku, Fukuoka 819-0395 JAPAN
Yasuhiro MITANI
Department of Civil Engineering, Graduate School of Engineering, Kyushu Univ., 774 Motooka, Nishi-ku, Fukuoka 819-0395 JAPAN
Tetsuya KUSUDA
Department of Civil Engineering, Graduate School of Engineering, Kyushu Univ., 774 Motooka, Nishi-ku, Fukuoka 819-0395 JAPAN