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; ; ; Takeda, Seiichiro
JNC TN8420 2001-008, 134 Pages, 2001/07
This investigation was conducted as a part of planning the low-level radioactive waste management program (LLW management program). The aim of this investigation was contributed to compile the radioactive waste database of JNC's LLW management program. All nuclear facilities of the Tokai works and Ningyo-toge Environmental Engineering Center were investigated in this work. The wastes generated by the decomissioning of each nuclear facility were classified into radioactive waste and others (exempt waste and non-radioactive waste), and the amount of the wastes was estimated. The estimated amounts of radioactive wastes generated by decomissioning of the nuclear facilities are as follows. (1)Tokai works. The amount of waste generated by decommissioning of nuclear facilities of the Tokai works is about 1,079,100 ton. The amount of radioactive waste is about 15,400 ton. The amount of exempt waste and non-radioactive waste is about 1,063,700 ton. (2)Ningyo-toge Environmental Engineering Center. The amount of waste generated by decommissioning of nuclear facilities of Ningyo-toge Environmental Engineering Center is about 112,500 ton. The amount of radioactive waste is about 7,800 ton. The amount of exempt waste and non-radioactive waste is about 104,700 ton.
Aoyagi, Takayoshi*; *; Mihara, Morihiro; Okutsu, Kazuo*; Maeda, Munehiro*
JNC TN8400 2001-024, 103 Pages, 2001/06
JNC-TN8400-2001-024.pdf:8.84MB
In the disposal concept of TRU waste, concentrated disposal of wastes forms in large cross-section underground cavities is envisaged, because most of TRU waste is no-heat producing in spite of large generated volume as compared with HLW. In the design of engineered barrier system based on large cross-section cavities, it is necessary to consider the long-term mechanical process such as creep displacement of the host rock from the viewpoint of the stability of engineered barrier system. In this study, the long-term creep displacement of the host rock was calculated using the non-linear viscoelasticity model and the effects on the stability of engineered barrier system was evaluated. As a result, in the disposal concept of crystalline rock, no creep displacement occurred at the time after 1 milion year. On the other hand, in the disposal concept of sedimentary rock, creep displacement of 80
90mm occurred at the time after 1 milion year. Also, in this calculation, a maximum reduction of 45mm concerned with the thickness of buffer material was estimated. But these values resulted within allowance of design values. Therefore, these results show that the effects of the creep displacement on the stability of engieered barrier system would not be significant.
Ito, Takao; Akino, Noboru; Ebisawa, Noboru; Grisham, L. R.*; Honda, Atsushi; Hu, L.*; Kawai, Mikito; Kazawa, Minoru; Kuriyama, Masaaki; Kusaka, Makoto*; et al.
Fusion Engineering and Design, 51-52, p.1039 - 1047, 2000/11
Times Cited Count：15 Percentile：68.6(Nuclear Science & Technology)no abstracts in English
Kamei, Kazushige; Hotoku, Shinobu; Asakura, Toshihide; Watanabe, Makio; Uchiyama, Gunzo; Fujine, Sachio
JAERI-Research 2000-021, p.29 - 0, 2000/03
JAERI-Research-2000-021.pdf:1.37MB
no abstracts in English
Wada, Ryutaro*; Nishimura, Tsutomu*; Fujiwara, Kazuo*; *; *
PNC TJ1058 97-003, 33 Pages, 1997/03
None
-ray radiolysis of simulated purex waste solutionsMiyata, Teijiro; Nakagiri, Naotaka*
Nihon Genshiryoku Gakkai-Shi, 39(12), p.1062 - 1068, 1997/00
Times Cited Count：4 Percentile：37.09(Nuclear Science & Technology)no abstracts in English
Onishi, Kazunori*; Takahashi, Yoshihiro*; *; Yoshikawa, Masahito
JAERI-Research 95-090, 40 Pages, 1996/01
JAERI-Research-95-090.pdf:1.41MB
no abstracts in English
; Miyata, Teijiro
Nihon Genshiryoku Gakkai-Shi, 38(12), p.992 - 1000, 1996/00
Times Cited Count：1 Percentile：14.44(Nuclear Science & Technology)no abstracts in English
*; *; *; Yagi, Toshiaki; Seguchi, Tadao
Mitsubishi Densen Kogyo Jiho, (87), p.45 - 49, 1994/04
no abstracts in English
M.Hoek*; Nishitani, Takeo; Ikeda, Yujiro; Morioka, Atsuhiko
JAERI-M 94-002, 25 Pages, 1994/01
no abstracts in English
Yoshikawa, Masahito; Morita, Yosuke; Ito, Hisayoshi; Nashiyama, Isamu*; *; Okumura, Hajime*; Yoshida, Sadafumi*
Amorphous and Crystalline Silicon Carbide IV, p.393 - 398, 1992/00
no abstracts in English
Yoshikawa, Masahito; Ito, Hisayoshi; Morita, Yosuke; Nashiyama, Isamu*; *; Okumura, Hajime*; Yoshida, Sadafumi*
Journal of Applied Physics, 70(3), p.1309 - 1312, 1991/08
Times Cited Count：38 Percentile：85.1(Physics, Applied)no abstracts in English
Nishitani, Takeo
JAERI-M 89-138, 32 Pages, 1989/10
no abstracts in English
Niikura, Setsuo; Nagami, Masayuki; Horiike, Hiroshi
Fusion Engineering and Design, 6, p.181 - 191, 1988/00
Times Cited Count：6 Percentile：57.08(Nuclear Science & Technology)no abstracts in English
-Particle Method; ;
JAERI-M 84-109, 33 Pages, 1984/06
no abstracts in English
Hashimoto, Kowa; Okano, Masanori; Taguchi, Katsuya; Nagasato, Yoshihiko
no journal, ,
The Tokai Reprocessing Plant has many facilities, various installation and complicated systems, which are contaminated by radioactive materials. Based on this feature, JAEA estimated its waste generation and the cost for decommissioning by using common and reasonable condition for many and complicated facilities.
