Papers 1 Experimental Study on Production Technique of Ultra-High Strength Concrete Hitoshi YAMADA, Takayuki MASUDA, Yumiko SAWADA 2 Study on Fire Resistance of Reinforced Concrete Columns with Ultra-High Strength Concrete Hitoshi YAMADA, Takayuki MASUDA, Takashi INOUE, Yumiko SAWADA 3 Coral Reef Transplantation by Underwater Concrete Yutaka IKEDA 4 Three Dimensional Geological Modeling Based on Multilevel Boxel Approach Ryou YAMASHITA 5 Development of Excavation Effect Evaluation System Based on Groundwater Flow Simulation Hisashi IMAI, Masakatsu EGUCHI, Yusuke WAKAYAMA, Kiyoharu IWATAKI, Yasutoshi YOSHIMOTO, Akira HIGUCHI 6 FEM study on Countermeasures against Ground Deformation in Embankment with Vacuum Preloading Method Makoto KIMURA, Kouki MATSUMOTO, Isamu SANDANBATA 7 Influence Factors on Pile Foundation Behavior by Liquefaction Ground Flow Yuji ADACHI, Kinya MIURA, Shingo MORIMASA, Masaya MIHARA, Kazuhiko URANO Reports 8 Visualization of Reflected Sounds in a Small Room Yasutaka UEDA Reprinted Papers 9 The Application of pH and pCO2 Monitoring to Estimating the Rates of Coral Reef Community Metabolism Hiroshi HATA, Setsuko KUDO, Akiko MURAMOTO, Ken NOZAKI, Ken KATO, Akira NEGISHI, Hiroshi SAITO, Hiroya YAMANO, Atsushi WATANABE, Hajime KAYANNE 10 Cost Optimization of Quick Hardening Concrete for New Pre-Lining Support Method Shin TERAUCHI, Hirofumi TANIGUCHI, Tatsuo KITA, Miyoshi WARITA, Isamu YOSHITAKE, Koji NAKAGAWA 11 Application of Three Dimensional Time-Frequency Coherency Method to the Reflection Imaging in a Tunnel Kazuhiro ONUMA, Hiroshi ASANUMA, Hiroaki NIITSUMA 12 A Study on Active Control of Floor Vibration and Structure-Borne Sound Yasuhiko TANAKA, Kiyotaka DEGUCHI