〇Kazuki Nishihagi¹, Osamu Tsujihara², Takaki Sakaguchi³, Akihiro Kishihata³, Kazuo Tsutsui³, Norio Miyazaki³, Atsuhiko Kinoshita⁴ (1.National Institute of Technology, Wakayama College, Advanced Course, 2.National Institute of Technology, Wakayama College, Civil Engineering, 3.Wakayama Prefecture Sabo Research and Education Institute, 4.National Institute for Land and Infrastructure Management)

〇Hidefumi Hatashima^1,4, IDE HIROTO², SEINO SATOQUO³ (1.Nita Elementary School, 2.Faculty of Education, Nagasaki University, 3.Graduate School of Engineering, Kyushu University, 4.Graduate School of Engineering, Kyushu University)

〇kaito kumon¹, toru nishikawa¹ (1.kabushikikaisyadaiichi-consul)

〇Nobuhiro Onizuka¹ (1.National Institute of Technology, Kisarazu College)

〇Mizuki Amakawa¹, Keiko Nagamura¹ (1.NIHON University)

〇Koichi Tomisawa¹ (1.Hokubu Consultant Co., Ltd.)

〇Masami KIKU¹ (1.National Institute of Technology, Gifu College)

〇Mao Ohno¹, Kouji Higashi¹, Takeomi Satou¹ (1.JAPAN CONSERVATION ENGINEERS & CO.,LTD.)