Study on engineering technologies in the Mizunami Underground Research Laboratory (FY 2015); Development of recovery and mitigation technology on excavation damage (Contract research)

Fukaya, Masaaki*; Takeda, Nobufumi*; Miura, Norihiko*; Ishida, Tomoko*; Hata, Koji*; Uyama, Masao*; Sato, Shin*; Okuma, Fumiko*; Hayagane, Sayaka*; Matsui, Hiroya; et al.

JAEA-Technology 2016-035, 153 Pages, 2017/02

JAEA-Technology-2016-035.pdf:37.6MB

The researches on engineering technology in the Mizunami Underground Research Laboratory (MIU) project in FY2016, detailed investigations of the (mechanical) behaviors of the plug and the rock mass around the reflood tunnel through ongoing reflood test were performed as part of (5) development of technologies for restoration and/or reduction of the excavation damage. As the result, particularly for the temperature change of the plug, its analytical results agree fairly well agree with the measurement ones. This means cracks induced by temperature stress can be prevented by the cooling countermeasure works reviewed in designing stage. In addition, for the behaviors of the plug and the bedrock boundary after reflooding the reflood tunnel, comparison between the results obtained by coupled hydro-mechanical analysis (stress-fluid coupled analysis) with the ones by several measurements, concluded that the model established based on the analysis results is generally appropriated.

Experiment Data of 200% Recirculation Pump Discharge Line Break Integral Test RUN961 with HPCS Failure at ROSA-III and Comparison with Results of Suction Line Break Tests

; Tasaka, Kanji; ; ; ; ; ;

JAERI-M 84-045, 229 Pages, 1984/03

JAERI-M-84-045.pdf:5.5MB

no abstracts in English

Effect of Upper Plenum Water Accumulation on Reflooding Phenomena Under Forced-Feed Flooding in SCTF Core-I Tests

Sudo, Yukio; ; ; Osakabe, Masahiro; ; Abe, Yutaka;

JAERI-M 83-114, 117 Pages, 1983/07

JAERI-M-83-114.pdf:2.77MB

no abstracts in English

Experimental study of upper core quench in PWR reflood phase

Abe, Yutaka; Sudo, Yukio; Osakabe, Masahiro

Journal of Nuclear Science and Technology, 20(7), p.571 - 583, 1983/00

https://doi.org/10.3327/jnst.20.571

no abstracts in English

Effects of partial flow blockage on core heat transfer in forced-feed reflood tests

Sudo, Yukio; Osakabe, Masahiro

Journal of Nuclear Science and Technology, 20(4), p.322 - 332, 1983/00

https://doi.org/10.3327/jnst.20.322

no abstracts in English

Spray cooling test; A separate effect test with ROSA-III,a BWR-LOCA simulation facility

Journal of Nuclear Science and Technology, 18(8), p.629 - 639, 1981/00

https://doi.org/10.3327/jnst.18.629

no abstracts in English

Improvement 7th Data Acquisition system in the Reflood Test Rig

; Murao, Yoshio;

JAERI-M 8165, 31 Pages, 1979/03

JAERI-M-8165.pdf:0.97MB

no abstracts in English

ROSA-II Test Data Report 12; Effect of ECCS Injection and Rump Circulation on LOCA Phenomena in Largest Leg Breaks (Runs332,413,425)

JAERI-M 7944, 146 Pages, 1978/11

JAERI-M-7944.pdf:3.64MB

no abstracts in English