Kimio Miyakawa
Central Research Institute of Electric Power Industry
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Publication
Featured researches published by Kimio Miyakawa.
Engineering Geology | 2000
Kimio Miyakawa; Kazuhiro Tanaka; Yoichi Hirata; Masanao Kanauchi
Abstract We developed a flowmeter well logging system that can detect hydraulic pathways in fractured rock mass and applied it to a site where granitic rock is widely distributed. Hydraulic pathways were detected by flow velocity measurement using the Doppler effect of ultrasonic waves, and fractures which acted as hydraulic pathways were specified by a borehole TV camera attached to the system. Fractures with hydraulic conductivity more than 10 −7 m/s were detected by the logging system, and the accuracy of the measured conductivities was within one order of magnitude. The newly developed flowmeter system can provide information on the location and conductivity of hydraulic pathways at the borehole for field employment in the earliest stages of site characterization surveys.
Applied Geochemistry | 2001
Yasunori Mahara; Toshifumi Igarashi; Takuma Hasegawa; Kimio Miyakawa; Yasuharu Tanaka; Kenzo Kiho
Applied Geochemistry | 2008
Yasunori Mahara; Takuma Hasegawa; Kimio Miyakawa; Tomoko Ohta
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 2007
Yasunori Mahara; M.A. Habermehl; Kimio Miyakawa; Jun Shimada; Yukihiro Mizuochi
Journal of groundwater hydrology | 2006
Yasunori Mahara; Eiji Nakata; Takahiro Ooyama; Kimio Miyakawa; Toshifumi Igarashi; Yoshihisa Ichihara; Hiroyuki Matsumoto
Journal of the Japan Society of Engineering Geology | 1992
Kazuhiro Tanaka; Kimio Miyakawa
Journal of the Seismological Society of Japan | 1996
Shinji Toda; Kazuhiro Tanaka; Masahiro Chigira; Kimio Miyakawa; Takuma Hasegawa
ISRM International Symposium - 8th Asian Rock Mechanics Symposium | 2014
Yasuharu Tanaka; Kimio Miyakawa; D. Fukahori; Kenzo Kiho; K. Goto
IAHS-AISH publication | 2007
Yasunori Mahara; Eiji Nakata; Takahiro Ooyama; Kimio Miyakawa; Yoshihisa Ichihara; Hiroyuki Matsumoto
Journal of the Japan Society of Engineering Geology | 1996
Kazuhiro Tanaka; Yasuharu Tanaka; Kimio Miyakawa; Yasunori Mahara; Shinji Yasuike; Shizumitsu Honsho
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