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Journal Articles

The Project for grouting development for high level radioactive waste repository, 7; Preliminary investigation for the in-situ grouting test at the grimsel test site

Nakanishi, Tatsuro; Uyama, Masao*; Tanaka, Tatsuya*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.95 - 96, 2010/09

no abstracts in English

Journal Articles

The Project for grouting development for high level radioactive waste repository, 5; In-situ grouting experiment at the Horonobe URL

Kishi, Hirokazu; Izumi, Atsushi; Toida, Masaru*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.91 - 92, 2010/09

no abstracts in English

Journal Articles

Runoff analysis in Horonobe basin based on spatial estimation of hydrological quantities

Yamamoto, Yoichi; Maekawa, Keisuke; Yokota, Hideharu; Mukai, Kazuyuki*; Ishii, Keiji*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.525 - 526, 2010/09

no abstracts in English

Journal Articles

Applicability for the estimation of a rock strength by Schmidt hammer based on in-situ measurement

Kuji, Masayoshi*; Asai, Hideaki; Matsui, Hiroya

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.139 - 140, 2010/09

Two deep shafts (the Main Shaft and the Ventilation Shaft) at The Mizunami Underground Research Laboratory (MIU) is currently being constructed by Japan Atomic Energy Agency (JAEA). To estimate the rock mass quality and UCS on shaft wall, existent rock mass classification methods (CRIEPI, RMR and New-JH) and in-situ Schmidt hammer tests were applied in rock. In this report, applicability for the estimation of rock strength by Schmidt hammer is discussed based on in-situ measurement data.

Journal Articles

The Project for grouting development for high level radioactive waste repository, 2; Relationship between basic properties and penetrability of low-alkaline cementitious grout material

Suzuki, Kenichiro*; Miura, Norihiko*; Iriya, Keishiro*; Noda, Masaru*; Kishi, Hirokazu

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.85 - 86, 2010/09

no abstracts in English

Journal Articles

Revaluation concerning application of a new quantitative rock mass classification for crystalline rock

Asai, Hideaki; Kuji, Masayoshi*; Matsui, Hiroya

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.137 - 138, 2010/09

Two deep shafts (the Main Shaft and the Ventilation Shaft) at The Mizunami Underground Research Laboratory (MIU) is currently being constructed by Japan Atomic Energy Agency (JAEA). We proposed a new quantitative rock mass classification methods based on JGS standard besides existing rock mass classification methods (CRIEPI, RMR and New-JH). Afterward, the new classification method is applied to the drift, and it reports on the result of revaluing applicability concerning the new classification method.

Journal Articles

The Project for grouting development for the high level radioactive waste repository, 6; Analysis of the in-situ grouting test results using Gustafson and Stille model

Tsuji, Masakuni*; Nobuto, Jun*; Okihara, Mitsunobu*; Sugita, Yutaka; Fujita, Tomoo; Shinkai, Fumiaki

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.93 - 94, 2010/09

no abstracts in English

Journal Articles

The Project for grouting development for the high level radioactive waste repository, 3; Durability test of coloidal silica grout

Sugiyama, Hirokazu*; Nobuto, Jun*; Fukuoka, Naomi; Shinkai, Fumiaki; Shimada, Shunsuke*; Koyama, Tadao*; Kijima, Masashi*; Terashima, Rei*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.87 - 88, 2010/09

no abstracts in English

Journal Articles

The Project for grouting development for high level radioactive waste repository, 4; Development of superfine spherical silica grout

Yamada, Tsutomu*; Sekine, Ichiro*; Sekiguchi, Takashi*; Ishida, Hideaki*; Kishi, Hirokazu; Fukuoka, Naomi

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.89 - 90, 2010/09

no abstracts in English

Journal Articles

Initial stress estimation of diatomaceous mudstone using hydraulic fracturing test and borehole breakout method

Nakamura, Takahiro; Sanada, Hiroyuki; Sugita, Yutaka; Kato, Harumi*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.129 - 130, 2010/09

Horonobe Underground Research Laboratory (URL) project aims at improvement of the reliability of technologies for geological disposal of high level radioactive wastes. In investigation during construction of the underground facilities, the updating and check of the validity of initial stress estimations made during surface-based investigations is one of the main issues. Thus, three boreholes were made from the niche (GL-140 m) of ventilation and east shaft, and a three-dimensional evaluation of the initial stress in Koetoi Formation was done by the method called hydraulic fracturing technique and the analysis of the borehole breakout. Moreover, the direction of the maximum horizontal principal stress had been found to be east/west in general. However, the present test showed that the direction was 26 or 46 degrees counterclockwise from east/west.

Oral presentation

Influence of ground motion to the linac tunnel, 3; Long-period strong ground motion

Yoshimura, Aya*; Ichimura, Takahito; Kitami, Takayuki; Horiguchi, Takashi; Kawama, Itsuo*; Ouchi, Hajime*; Tsunokake, Hisao*

no journal, , 

no abstracts in English

Oral presentation

Status and future issues of neutralization of acid water using control typed muck

Yamanishi, Takeshi; Sekiya, Yoshitomo; Sataka, Hiroyuki; Kitagawa, Yoshito*; Kato, Kinya*

no journal, , 

no abstracts in English

Oral presentation

Chemical property and future issues of control typed muck at stockyard

Yamanishi, Takeshi; Sekiya, Yoshitomo; Suzuki, Tatsuya; Kitagawa, Yoshito*; Kato, Kinya*; Saito, Ryosuke*

no journal, , 

no abstracts in English

Oral presentation

Ventilation net analysis indeep underground facilities construction

Sekiya, Yoshitomo; Shimoyama, Tadashi; Anada, Hideki*; Kanatani, Tsugio*; Yamanishi, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Simulation of mine fire indeep underground facilities construction

Sekiya, Yoshitomo; Shimoyama, Tadashi; Hirakawa, Yoshiaki*; Narashima, Yoshimasa*; Yamanishi, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Development of grouting technology for geological disposal; Prototype technology

Fujita, Tomoo; Sasamoto, Hiroshi; Naito, Morimasa; Yui, Mikazu

no journal, , 

no abstracts in English

Oral presentation

Rock behavior induced by shaft sinking in Horonobe Underground Research Laboratory

Tsusaka, Kimikazu; Tokiwa, Tetsuya; Inagaki, Daisuke

no journal, , 

no abstracts in English

Oral presentation

A Study on the applicability of one-dimensional model for evaluating in-situ tracer tests in a fracture, 3

Naemura, Yumi*; Ijiri, Yuji*; Amano, Kenji; Yokota, Hideharu; Maekawa, Keisuke; Sawada, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Effectiveness of a pilot borehole investigation for design of an underground structure on rock mechanics

Sato, Shin*; Noda, Masaru*; Hata, Koji*; Matsui, Hiroya; Mikake, Shinichiro

no journal, , 

In MIU project, a unexpected fault zone was confirmed in the excavation of sedimentary formation of Main shaft. Therefore, the pilot borehole investigation was carried out in FY2008 to plan the excavation below sedimentary formation. This report describe the effectiveness of the pilot borehole investigation in mechanical point of view. In detail, the laboratory tests using of the core were performed in the fault zone and the rock mechanical model reconstruct based on the results. Then, numerical simulation was carried out and compared the results to measured displacements and force in concrete lining at Main shaft, first design for support in MIU project.

Oral presentation

Development of the dynamic injection system for grouting, 2; In-situ tests of dynamic injection system under high water pressure condition

Uyama, Masao*; Noda, Masatoshi*; Noda, Masaru*; Hasegawa, Hiroshi*; Matsui, Hiroya; Suzuki, Yohei*; Hamako, Tadashi*; Tanaka, Yuji*

no journal, , 

Dynamic injection method increase the penetration of grout material and apply the grouting of small and low permeable crack in rock mass. This paper report the results of in-situ dynamic injection under high water pressure condition by using of the developed system reported Part1. This test used the borehole drilled in collaboration study between JAEA and AIST and the budget is a part of contract study from NISA.

32 (Records 1-20 displayed on this page)