The Development of extra high head pump for cutoff grout drainage in a deep vertical shaft

Shirase, Mitsuyasu*; Abe, Akimasa*; Nago, Makito*; Ishii, Eiichi; Aoyagi, Kazuhei; Wakasugi, Shinichi*

Doboku Gakkai Heisei-29-Nendo Zenkoku Taikai Dai-72-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.1795 - 1796, 2017/09

JAEA has executed the underground facility construction operation from February 2011 to June 2014, while carrying out the maintenance and research project until 2018. This report is about the extra high head pump which was able to drain the high specific gravity grout drainage, which develops during grouting operation at this facility, directly from 250m underground to the surface.

The Planning of future research program of underground laboratories in overseas

*; Tanai, Kenji; *

JNC TN8420 2001-007, 86 Pages, 2002/02

JNC-TN8420-2001-007.pdf:6.04MB

The objectives of this study is to identify the research issues, which are to be conducted in the future underground research laboratory, about operation and logistics systems for the planning of future research and development program. The research programs and experiments,etc. were investigated for the geological disposal projects in overseas sedimentary rocks and coastal geological environments aiming to reflect in the future underground research facility plan in Japan. In the investigation, information on the engineered-barrier performance, design and construction of underground facilities, tunnel support, transportation and emplacement, and backfilling technology, etc. were collected. Based on these informations, the purpose, the content, and the result of each investigations and tests were arranged. The strategy and the aim in the entire underground research facility, and the flow of investigations and tests, etc. were also arranged from the purpose, the relations and the sequence of each investigation and experiment, and the usage of results, etc.

None

Ashida, Takashi

PNC TN8600 92-007, 77 Pages, 1992/02

PNC-TN8600-92-007.pdf:5.69MB

no abstracts in English

Migration behavior of radionuclide in soil layer of final storage; Radionuclide migration test in aerated soil layer by precipitation

Yamamoto, Tadatoshi; Takebe, Shinichi; Ogawa, Hiromichi; Tanaka, Tadao; Mukai, Masayuki; Komiya, Tomokazu; *;

JAERI-M 89-189, 18 Pages, 1989/11

JAERI-M-89-189.pdf:0.65MB

no abstracts in English

In-situ Experiments in Granite

; ; ; *; ; *; *; *; ; Araki, Kunio

JAERI-M 86-044, 87 Pages, 1986/03

JAERI-M-86-044.pdf:2.07MB

no abstracts in English