Affiliation: | aJapan Nuclear Fuel, Ltd, Civil and Architectural Engineering Department, Uchisaiwai, Chiyoda, Fukoku seimei Bld. 2-2-2, Tokyo 100,Japan bMitsubishi Materials Corporation, 1-3-25, Koishikawa Bunkyo, Tokyo 112,Japan cShimizu Corporation, 1-2-3, Shibaura, Minato, Tokyo 105-07,Japan dDia Consultants Co., Ltd., 2-272-3, Yoshino, Oomiya, Saitama 330,Japan |