Phase II investigation in the MIU project, 1; Hydrogeoloogical characterization of fault based on data from hydraulic packer test

Onuki, Kenji; Daimaru, Shuji*; Onoe, Hironori ; Takeuchi, Ryuji

The Mizunami Underground Research Laboratory (MIU) is now under construction by the Japan Atomic Energy Agency, in the Cretaceous Toki granite in the Tono area, Central Japan. In Phase I and Phase II of the MIU Project, distribution of low permeable fault was confirmed in the MIU construction site. And it was estimated that the fault is significant structure for groundwater flow condition around the MIU construction site. In this paper, hydrogeological characteristics of the fault are evaluated based on data from hydraulic packer test was carried out from the -300 m Access/Research Gallery.

Language	:	Japanese
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Meeting title	:	日本地下水学会2012年秋季講演会
Held date	:	2012/09
Location (city)	:	鹿児島
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	超深地層研究所
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Registration No. : BB20121460
JAEA Abstracts No. :
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