[21]PREDICTION METHOD OF LEAKAGE AND SAND BOILING BASED ON THE LEVEE FOUNDATION VULNERABILITY INDEX tb* , AND SOIL CHRACTERISTICS AT THE TOE OF LANDSIDE LEVEE
*Yutaka Satoh1, Shoji Fukuoka2(1. kabushikikaishya kitac, 2. chuodaigaku kenkyukaihatsu kikou)
