Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2010

Kunimaru, Takanori; Mikake, Shinichiro; Nishio, Kazuhisa; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Ishibashi, Masayuki; Ueno, Takashi; Tokuyasu, Shingo; Daimaru, Shuji; Takeuchi, Ryuji; et al.

JAEA-Review 2012-020, 178 Pages, 2012/06

JAEA-Review-2012-020.pdf:33.16MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is pursuing a geoscientific research and development project namely the Mizunami Underground Research Laboratory (MIU) Project in crystalline rock environment in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). The MIU Project has three overlapping phases: Surface-based Investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III). The MIU Project has been ongoing the Phase II. And Phase III started in 2010 fiscal year. This report shows the results of the investigation, construction and collaboration studies in fiscal year 2010, as a part of the Phase II based on the MIU Master Plan updated in 2002.

Stress analysis of plate-fin structures in recuperator

Matsui, Shingo*; Muto, Yasushi; Shiina, Yasuaki

JAERI-Tech 2000-083, 107 Pages, 2001/01

JAERI-Tech-2000-083.pdf:3.46MB

no abstracts in English

Development of protective net using high strength lightweight aramid for tornado missile

Aizawa, Kosuke; Ishimaru, Masaru; Maeda, Shigetaka; Okada, Taiichi*; Matsui, Hiroyuki*; Kumagai, Yukihiro*; Isaka, Shingo*

no journal, , 

The protective nets against the tornado missile are important for power plant equipment. Japan Atomic Energy Agency has developed the protective net using aramid fiber rope to aim high strength lightweight net. The net element tests and analyses were conducted to clarify the characteristic of the protective net using aramid fiber rope. The actual size net was designed based on the results of net element tests and analyses. The dynamic analysis which simulates a car crash on the designed actual size net was conducted. From the result of the dynamic analysis, it was confirmed that the protective net using aramid fiber rope has a possibility to withstand the car crash. In addition, the fire resistance test and the resistance to weather of the aramid fiber rope were conducted. The results showed that the aramid fiber rope has high performance for firing resistance and weather resistance.