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Mizuno, Takashi; Metcalfe, R.*; Iwatsuki, Teruki; Mie, Hideki*
Chikasui Gakkai-Shi, 49(2), p.139 - 152, 2007/05
Hydrochemical studies are generally conducted based on chemical data of groundwater samples. Various methodologies exist for obtaining samples and for assessing the quality of the collected sample. This study is aimed at establishing a methodology for quality assessment of chemical data obtained from groundwater samples using a method known as Evidence Support Logic. In this study, pH data of groundwater obtained from several boreholes were assessed using this method. The results showed that 23 out of 63 samples satisfied the applied quality criteria. When plotted, the data from the 23 samples show a constant value from top to bottom of investigation area when compared to a plot using data from all samples. These results indicate that the quality assessment method demonstrated by this study is applicable to groundwater studies and that by considering the sample quality it will be possible to develop a clearer interpretation of the deep underground geochemical environment.
Iwatsuki, Teruki; Furue, Ryoji; Mie, Hideki; Ioka, Seiichiro; Mizuno, Takashi
Applied Geochemistry, 20(12), p.2283 - 2302, 2005/12
Times Cited Count：58 Percentile：71.91(Geochemistry & Geophysics)Hydrochemical conditions up to 1000m below ground level around the Mizunami Underground Research Laboratory were investigated to construct a baseline condition model descriving the undisturbed condition.
Tsuruta, Tadahiko; Fujita, Yuji; Abumi, Kensho; Mie, Hideki; Fujishiro, Hideyuki
JNC TN7400 2005-025, 82 Pages, 2005/08
JNC-TN7400-2005-025.pdf:8.63MB
The DH-15 borehole investigations were carried out to develop and apply a variety of geoscientific techniques for the geological and hydrogeological characterization of water conducting features and the rock mass. The main investigations performed were : Measurement of geochemical parameters of the drilling fluid and the return water, Coring, core logging and photographing of core, Borehole television observation, Geophysical logging, Fluid logging, Multi-offset VSP survey, Hydraulic tests, Measurement of geochemical parameters of the pumping water, and Installation of a long-term groundwater monitoring system. This report describes the results of the DH-15 borehole investigations with respect to the above results.
Ikeda, Koki; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Mie, Hideki; Yabuuchi, Satoshi
JNC TN7430 2005-002, 65 Pages, 2005/02
JNC-TN7430-2005-002.pdf:73.33MB
The Regional HydrogeologicaI Study (RHS) Project, which commenced in 1992, has been performed in the 10km-square area. It was intended for the development of an understanding of the geological environment at the regional and local area. The DH-15 borehole was drilled to develop the techniques of evaluations for the fracture zones whose presence have been observed by previous surveys around the MIU Construction Site. This advance report summarized to familiar the results of borehole investigations to person interested and to evaluate preliminary issues. Interpretations and conclusions described in this report will be revised depending on the progress of analytical works.
Ikeda, Koki; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Mie, Hideki; Yabuuchi, Satoshi
JNC TN7430 2005-001, 46 Pages, 2005/02
JNC-TN7430-2005-001.pdf:65.66MB
The RegionaI Hydrogeological Study (RHS) Project, which commenced in 1992, has been performed in the 10km-square area. It was intended for the development of an understanding of the geological environment at the regional and local scale. The DH-14 borehole was drilled to develop the techniques of evaluations for the large-scale lineaments whose presence have been observed in the northeast region of Regional Hydrogeological Study project. This advance report summarized to familiar the results of borehole investigations to person interested and to evaluate preliminary issues. Interpretations and conclusions described in this report will be revised depending on the progress of analytical works.
Mie, Hideki; Iwatsuki, Teruki; Furue, Ryoji; Mizuno, Takashi; Ioka, Seiichiro
JNC TN7400 2004-006, 64 Pages, 2004/10
JNC-TN7400-2004-006.pdf:9.26MBJNC-TN7400-2004-006(errata).pdf:0.08MB
This report describes the results of the investigation on the hydrochemical characteristic of groundwater in DH-15 borehole.
Furue, Ryoji; Iwatsuki, Teruki; Mizuno, Takashi; Mie, Hideki
JNC TN7520 2003-001, 74 Pages, 2003/11
JNC-TN7520-2003-001.pdf:1.71MB
TGC is carrying hydrochemical investigation in the Tono area. This book explains about outline of the method of obtaining hydrochemical data from borehole.
Iwatsuki, Teruki; Mie, Hideki; Mizuno, Takashi; Amano, Yuki; Ioka, Seiichiro
no journal, ,
no abstracts in English
Mizuno, Takashi; Metcalfe, R.*; Iwatsuki, Teruki; Mie, Hideki*
no journal, ,
no abstracts in English
Mizuno, Takashi; Metcalfe, R.*; Mie, Hideki; Iwatsuki, Teruki
no journal, ,
no abstracts in English
Iwatsuki, Teruki; Amano, Yuki; Mie, Hideki
no journal, ,
Hydrochemical changes of groundwater have been observed around the shaft of Mizunami underground research laboratory. Water pressure, pH, and concentrations of calcium, sulphate and bicarbonate ions in groundwater changed in response to shafts sinking. Hydrochemical disturbance seems to reach within the range of surrounding shaft tens of m.
