Horonobe Underground Research Laboratory Project; Investigation program for the 2008 fiscal year (Translated document)

Nakayama, Masashi; Sanada, Hiroyuki; Yamaguchi, Takehiro*; Sugita, Yutaka

JAEA-Review 2010-044, 39 Pages, 2010/11

JAEA-Review-2010-044.pdf:6.68MB

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 2008 fiscal year (2008/2009), the 4th year of the Phase 2 investigations.

Horonobe Underground Research Laboratory Project; Investigation program for the 2007 fiscal year (Translated document)

Matsui, Hiroya; Nakayama, Masashi; Sanada, Hiroyuki; Yamaguchi, Takehiro

JAEA-Research 2008-070, 38 Pages, 2008/09

JAEA-Research-2008-070.pdf:12.62MB

In the 2007 fiscal year, investigations in "geoscientific research" is continuously carried out. Investigations in "research and development on geological disposal technology" is also continuously carried out. Construction of the underground facilities is ongoing at Ventilation Shaft and East Shaft. Pre-boring around Ventilation Shaft is also carried out. Regarding the surface facilities, construction of the Public Information House and preparation of the exhibits are still continuing and will be completed in May 2007. Public Information House will be scheduled to open in this summer. A detailed design will be drawn up for the International Communication House.

Horonobe Underground Research Laboratory Project investigation program for the 2008 fiscal year

Nakayama, Masashi; Sanada, Hiroyuki; Yamaguchi, Takehiro; Sugita, Yutaka

JAEA-Research 2008-063, 37 Pages, 2008/09

JAEA-Research-2008-063.pdf:11.68MB

As part of the research and development program on geological disposal of HLW, the Horonobe Underground Research Center, a division of the JAEA, is implementing the Horonobe Underground Research Laboratory Project (Horonobe URL Project) with the aim of 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 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" and "Phase 3: Operation phase". This report summarizes the investigation program for the 2008 fiscal year (2008/2009), the 4th year of the Phase 2 investigations. In the 2008 fiscal year, investigations in "geoscientific research" and "research and development on geological disposal technology" are continuously carried out. Construction of the underground facilities is ongoing at Ventilation Shaft and Access Shaft (East). Pre-boring around Ventilation Shaft is also carried out Regarding the surface facilities, construction of the International Communication House will be started.

Collection of URL measurement data in 2006 at the Horonobe Underground Research Laboratory project

Kumagai, Yasuhito; Funaki, Hironori; Yamazaki, Masanao; Yamaguchi, Takehiro; Orukawa, Go*; Sanada, Hiroyuki; Abe, Hironobu

JAEA-Data/Code 2007-025, 106 Pages, 2008/07

JAEA-Data-Code-2007-025.pdf:12.75MB

The shafts in construction of the underground facilities were started in earnest in 2006. The measurement plan applied to measurements in the underground facilities for validation of the geological environmental model was drew up and was carried out. This data code summarizes the measurements data acquired in 2006 of Phase 2 (investigations during construction of the underground facilities).

Measurement plan and observational construction program on shaft excavation at the Horonobe Underground Research Laboratory Project

Morioka, Hiroshi; Yamaguchi, Takehiro; Funaki, Hironori; Orukawa, Go

JAEA-Research 2007-050, 60 Pages, 2007/06

JAEA-Research-2007-050.pdf:5.29MB

JAEA is carrying out phased investigation in Horonobe. This investigation, named as "Horonobe Underground Research Laboratory Project" (Horonobe URL Project) targeting sedimentary formations, is intended to confirm the reliability of technologies on geological disposal of High-Level Radioactive Waste (HLW) by applying them into in-situ geological environment. On the "Development of engineering techniques for use in the deep underground environment" in Phase 1 of the Horonobe URL project, based on the various type of data acquired on investigations from the surface, basic design of underground facilities in advance was carried out. This report summarizes the measurement plan during construction of the underground facility based on the design in advance and the observational construction program for feedback measurements data into design and construction on subsequent steps. This report also describes about design and construction management program for contractor of underground facilities. The measurement plan described in this document is applied to measurements in the underground facilities for validation of the geological environmental model. Then, it will be verified the validity by application into actual construction and will be systematized with modification when necessary.

Horonobe Underground Research Laboratory Project; Investigation program for the 2006 fiscal year (Translated document)

Matsui, Hiroya; Niizato, Tadafumi; Yamaguchi, Takehiro

JAEA-Research 2007-041, 40 Pages, 2007/02

JAEA-Research-2007-041.pdf:13.17MB

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 for sedimentary formations. This Project is planned to extend over a period of 20 years. The investigations are to be conducted in three phases. This report summarizes the investigation program for the FY2006. The investigations in FY2006 are focused on the Hokushin area in Horonobe, which was selected as the area for URL construction. The main investigation region extends over approximately 3km3km. Construction of the underground facilities is continued and Phase 2 investigations are carried out. Concerning the surface facilities, construction of Research and Administration Facility and Test Facility, will be complete in May, 2006. Construction of Public Information House is continued and fabrications of the exhibits are initiated. The preliminary design of International Communication House is carried out.

Horonobe Underground Research Laboratory Project; Investigation report for the 2005 fiscal year

Matsui, Hiroya; Niizato, Tadafumi; Yamaguchi, Takehiro

JAEA-Research 2006-073, 72 Pages, 2006/11

JAEA-Research-2006-073.pdf:16.91MB
JAEA-Research-2006-073(errata).pdf:0.08MB

The investigations in 2005 fiscal year (2005/2006) were focused on the Hokushin area, which was selected as the area for laboratory construction. The main investigation region extends over approximately 3km3km. Geophysical, geological and surface hydrogeological investigations are carried out to acquire the geoscientific data needed to develop techniques for investigating the geological environment. And the borehole investigation at HDB-11 was finished in 2005.

None

Yamaguchi, Takehiro

JNC TN5400 2005-002, 18 Pages, 2005/06

JNC-TN5400-2005-002.pdf:3.84MB

None

Horonobe Underground Research Laboratory Project Plan of the Investigation Program for the 2004 Fiscal Year (2004/2005)

Hama, Katsuhiro; Amemiya, Keiji; Yamaguchi, Takehiro

JNC TN5510 2005-001, 23 Pages, 2004/04

JNC-TN5510-2005-001.pdf:7.15MB

The Horonobe Underground Research Laboratory Project is planned to extend over 20 years. Investigations will be conducted in three phases, namely from the surface (Phase 1), during construction of the underground facility (Phase 2) and in the underground facility itself (Phase 3). The 2004 fiscal year is the fifth year of the Phase 1 surface-based investigations.Geophysical, geological, surface hydrogeological and borehole investigations are being carried out in order to develop techniques for exploring the geological environment. Geoscientific models are being constructed, revised and verified based on the acquired data. As part of the development of techniques for monitoring the geological environment, long-term monitoring of groundwater pressures is ongoing in a borehole equipped in a previous investigation phase. Long-term monitoring systems are also being installed in the remaining boreholes at the site and measurements are ongoing. Development of a remotely operated monitoring system (ACROSS) is also continuing. Studies on the long-term stability of the geological environment include monitoring with seismographs, GPS and electromagnetic surveys. With a view to developing engineering techniques for application in the deep underground environment, a basic design for the underground facility has been defined. To provide input for the detailed planning of the Phase 2 and 3 investigations, laboratory tests are being carried out on the transportation and emplacement of the engineered barriers and on tunnel reinforcement materials. With a view to improving their reliability, the appropriateness of safety assessment methods is being examined using field and laboratory data. The design of the surface facilities has been defined and construction work has begun. Environmental monitoring is ongoing, as is collaboration with domestic and overseas research institutes.

Outline for the Horonobe Underground Research Laboratory project synthesis of phase I investigations 2001 - 2005

Kunimaru, Takanori; Ota, Kunio; Abe, Hironobu; Yamaguchi, Takehiro; Ishii, Eiichi; Kurikami, Hiroshi; Tomura, Goji; Shibano, Kazunori; Hama, Katsuhiro; Matsui, Hiroya; et al.

no journal, , 

The Horonobe Underground Research Laboratory (URL) Project is being pursued by the Japan Atomic Energy Agency (JAEA) to enhance the reliability of relevant disposal technologies through investigations of the deep geological environment within the host sedimentary formations at Horonobe, northern Hokkaido. The project consists of two major research areas, "Geoscientific Research" and "R&D on Geological Disposal", and proceeds in three overlapping phases, "Phase I: Surface-based investigation", "Phase II: Construction" and "Phase III: Operation", over a period of 20 years. The present report summarises the results of the Phase I geoscientific research carried out from March 2001 to March 2005. Integration of work from different disciplines into a "geosynthesis" ensures that the Phase I goals have been successfully achieved and identifies key issues that need to be addressed in the Phase II/III investigations.