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JAEA Reports

Collection of URL measurement data in 2009 fiscal year at the Horonobe Underground Research Laboratory Project

Inagaki, Daisuke; Ishii, Eiichi; Niinuma, Hiroaki; Sanada, Hiroyuki; Tsusaka, Kimikazu; Sano, Michiaki*; Sawada, Sumiyuki

JAEA-Data/Code 2010-027, 151 Pages, 2011/02

JAEA-Data-Code-2010-027.pdf:9.75MB

In the Horonobe Underground Research Laboratory (URL) Project, construction of the ventilation shaft, the east shaft and the drifts has been conducted as a phase 2 research. In the research, observation of the lithofacies and fracture, and in-situ tests, simple elastic wave exploration, schmidt hammer test, equotip test, point load test are conducted in each face, and measuring instruments such as extensometer, rock-bolt axial force meter, shotcrete stress meter and tunnel lining concrete stress meter are installed in particular face. In addition, for the purpose of the validation of the results of predictive analysis, conducted in phase 1, about the amount of spring water during construction of underground facilities, data on the changes of amount of spring water and water quality is obtained. This report summarizes the measurements data acquired at the east shaft (GL-140 m - 210 m) and the 140 m drift.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation program for the 2010 fiscal year

Nakayama, Masashi; Sanada, Hiroyuki; Sano, Michiaki; Sugita, Yutaka

JAEA-Review 2010-041, 26 Pages, 2010/10

JAEA-Review-2010-041.pdf:3.2MB

As part of the research and development program on geological disposal of high-level radioactive waste (HLW), the Horonobe Underground Research Center, a division of the JAEA is implementing the Horonobe URL Project with the aim at investigating sedimentary rock formations. According to the research plan described in the Midterm Plan of JAEA, geological investigations are to be carried out during the drilling of a shaft down to around 350 m depth, while research and development in the areas of engineering technology and safety assessment are to be promoted by collaboration with other research organizations. The results of the R&D activities will be systematized as a "knowledge base" that supports a wide range of arguments related to the safety of geological disposal. The Horonobe URL Project is planned to extend over a period of 20 years. The investigations will be conducted in three phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction phase" (investigations during construction of the underground facilities) and "Phase 3: Operation phase" (research in the underground facilities). This report summarizes the investigation program for the 2010 fiscal year (2010/2011). In the 2010 fiscal year, investigations in "geoscientific research", including "development of techniques for investigating the geological environment", "development of techniques for long-term monitoring of the geological environment", "development of engineering techniques for use in the deep underground environment" and "studies on the long-term stability of the geological environment", are continuously carried out. Investigations in "research and development on geological disposal technology", including "improving the reliability of disposal technologies" and "enhancement of safety assessment methodologies", are also continuously carried out. Construction of the underground facilities is ongoing at Access Shaft (East) and 250 m depth drift.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation report for the 2009 fiscal year

Nakayama, Masashi; Sano, Michiaki; Sanada, Hiroyuki; Sugita, Yutaka

JAEA-Review 2010-039, 67 Pages, 2010/10

JAEA-Review-2010-039.pdf:18.17MB

The Horonobe Underground Research Laboratory Project is planned to extend over a period 20 years. The investigations will be conducted in three phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction Phase" (investigations during construction of the underground facilities) and "Phase 3: Operation phase" (research in the underground facilities). This report summarizes the results of the investigations for the 2009 fiscal year (2009/2010). The investigations, which are composed of "Geoscientific research" and "R&D on geological disposal technology", were carried out according to "Horonobe Underground Research Laboratory Project Investigation Program for the 2009 Fiscal year". The results of these investigations, along with the results which were obtained in other departments of Japan Atomic Energy Agency (JAEA), are properly offered to the implementations and the safety regulations. For the sake of this, JAEA has proceeded with the project in collaboration with experts from domestic and overseas research organisations.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation report for the 2008 fiscal year

Nakayama, Masashi; Sano, Michiaki; Sanada, Hiroyuki; Sugita, Yutaka

JAEA-Research 2009-032, 68 Pages, 2009/11

JAEA-Research-2009-032.pdf:30.99MB

The Horonobe Underground Research Laboratory Project is planned to extend over a period 20 years. The investigations will be conducted in 3 phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction Phase" (investigations during construction of the underground facilities) and "Phase 3: Operation phase" (research in the underground facilities). This report summarizes the results of the investigations for the 2008 fiscal year (2008/2009), the 4th year of the Phase 2 investigations. The investigations, which are composed of "Geoscientific research" and "R&D on the geological disposal of high-level radioactive waste (HLW)", were carried out according to "Horonobe Underground Research Laboratory Project Investigation Program for the 2008 Fiscal year". The results of these investigations, along with the results which were obtained in other departments of Japan Atomic Agency (JAEA), are properly offered to the implementations and the safety regulations. JAEA proceeded with the project in collaboration with experts from domestic and overseas research organisation.

JAEA Reports

Collection of URL measurement data in 2008 at the Horonobe Underground Research Laboratory Project

Sano, Michiaki; Ishii, Eiichi; Niinuma, Hiroaki; Fujikawa, Daisuke; Sanada, Hiroyuki; Hiraga, Naoto; Tsusaka, Kimikazu; Yamasaki, Masanao*

JAEA-Data/Code 2009-015, 142 Pages, 2009/11

JAEA-Data-Code-2009-015.pdf:41.84MB

In the Horonobe Underground Laboratory (URL) Project, Construction of the Ventilation Shaft, the East Shaft and the drifts has been conducted as a Phase 2 research. In the research, observation of the lithofacies and fracture, and in-situ tests, simple elastic wave exploration, Schmidt hammer test, Equotip test, point load test are conducted in each face, and measuring instruments such as extensometer, rock-bolt axial force meter, shotcrete stress meter and tunnel lining concrete stress meter are installed in particular face. In addition, for the purpose of the validation of the results of predictive analysis, conducted in Phase 1, about the amount of spring water during construction of Underground facilities, data on the changes of amount of spring water and water quality is obtained. This report summarizes the measurements data acquired at the Ventilation Shaft (GL -161m $$sim$$ -250m), the East Shaft (GL -110m $$sim$$ -140m) and the 140m drift.

JAEA Reports

Horonobe Underground Research Laboratory Project; Investigation program for the 2009 fiscal year

Nakayama, Masashi; Sanada, Hiroyuki; Sano, Michiaki; Sugita, Yutaka

JAEA-Review 2009-012, 29 Pages, 2009/06

JAEA-Review-2009-012.pdf:3.64MB

As part of the R&D program on geological disposal of HLW, the Horonobe Underground Research Center, a division of the JAEA, is implementing the Horonobe URL Project with the aim at investigating sedimentary rock formations. According to the research plan described in the Midterm Plan of JAEA, geological investigations are to be carried out during the drilling of a shaft down to intermediate depth, while R&D in the areas of engineering technology and safety assessment are to be promoted by collaboration with other research organizations. The results of the R&D activities will be systematized as a "knowledge base" that supports a wide range of arguments related to the safety of geological disposal. The Horonobe URL Project is planned to extend over a period of 20 years. The investigations will be conducted in three phases, namely "Phase 1: Surface-based investigations", "Phase 2: Construction phase" (investigations during construction of the underground facilities) and "Phase 3: Operation phase" (research in the underground facilities). This report summarizes the investigation program for the 2009 fiscal year, the 5th year of the Phase 2 investigations. In the 2009 fiscal year, investigations in "geoscientific research", including "development of techniques for investigating the geological environment", "development of techniques for long-term monitoring of the geological environment", "development of engineering techniques for use in the deep underground environment" and "studies on the long-term stability of the geological environment", are continuously carried out. Investigations in "research and development on geological disposal technology", including "improving the reliability of disposal technologies" and "enhancement of safety assessment methodologies", are also continuously carried out. Construction of the underground facilities is ongoing at Access Shaft (East) and 140 m depth drift.

Oral presentation

Horonobe URL project; Status of construction of the underground facilities

Sano, Michiaki; Sekiya, Yoshitomo

no journal, , 

no abstracts in English

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