*TOMOKI NAKAZORA¹, HIDEAKI YASUHARA¹, NOBUTAKA HIRAOKA² (1. Kyoto University, 2. National Institute of Ocuppational Safety and Health, Japan)

*AKIHIRO ODAGAKI¹, Kazunari Sako¹, Shinichi Ito² (1. Kagoshima University, 2. Ritsumeikan University)

*Ryosuke NAKAJIMA¹, Kazunari Sako², Shinichi Ito³ (1. Kagoshima University　, 2. Kagoshima University　Ocean Civil Engineering, 3. Ritsumeikan University Department of Civil and Environmental Engineering)

*SHINICHI ITO¹, Taizo Kobayashi¹, Kazunari Sako² (1. Ritsumeikan University, 2. Kagoshima University)

*KENTARO YAMAMOTO¹, NAOMICHI YOKOYA, KENJI OKAMOTO², YUSUKE HATA³, MITSUKI TOKUDA⁴, SATO HIDEFUMI⁵ (1. Oita　University, 2. Fukuyama Consultants Company, 3. Nihonchiken Company, 4. Shinchiken Kogyo Company, 5. Heiseichiken Company)

*MAKOTO FUKUHARA^1,2, TARO UCHIMURA², SHANGNING TAO¹ (1. CHUO　KAIHATSU　CORPORATION, 2. SAITAMA　UNIVERSITY)

*KANTO TOMISHIGE¹, Murakami Satoshi¹ (1. Fukuoka University Graduate school)

*MASAO TOMINAGA¹, HIROYOSHI KIKU², RYO SAWADA³ (1. JR Kyushu consultants Co.,Ltd., 2. KANTO GAKUIN UNIVERSITY, 3. JR SOKEN ENGINEERING CO.,Ltd.)