2:15 PM - 2:30 PM
*Yuji KUWAHARA1, Daisaku SATO2, Yokoki HIROMUNE3, Masafumi FUJITA3 (1.Center for Water Environment Studies, Ibaraki University, 2.Dept. of Architectural, Civil and Environmental Engineering, Tokyo Denki Univrsity, 3.Dept. of Urban and Civil Engineering, Ibaraki University)