Results of single borehole hydraulic tests in the Mizunami Underground Research Laboratory Project (FY2012 - FY2015)

Onoe, Hironori; Takeuchi, Ryuji

JAEA-Data/Code 2016-012, 46 Pages, 2016/11

JAEA-Data-Code-2016-012.pdf:8.52MB

This report summarize the results of the single borehole hydraulic tests of 151 sections were carried out at the -300 m Stage and the -500 m Stage of the Mizunami Underground Research Laboratory from FY 2012 to FY 2015. The details of each test (test interval depth, geology, etc.) as well as the interpreted hydraulic parameters and analytical method used are presented in this report. And, the previous results of the single borehole hydraulic tests were carried out in Regional Hydrogeological Study Project and Mizunami Underground Research Laboratory Project before FY 2012 is summarized in this report.

Excavation and preparation rock block sample for LABROCK

Uchida, Masahiro;

JNC-TN8410 2001-015, 35 Pages, 2001/05

JNC-TN8410-2001-015.pdf:1.73MB

This technical report summarizes excavation and preparation of the natural rock block sample used in LABROCK. This report was originally compiled by PNC in March, 1993.

None

*; ;

JNC-TJ7440 2000-018, 55 Pages, 2000/03

JNC-TJ7440-2000-018.pdf:9.57MB

no abstracts in English

None

JNC-TJ7420 99-016, 878 Pages, 1999/06

JNC-TJ7420-99-016.pdf:40.87MB

no abstracts in English

None

*; *; *; *

JNC-TJ7440 99-001, 151 Pages, 1999/01

JNC-TJ7440-99-001.pdf:10.35MB

no abstracts in English

None

*

PNC-TJ1559 98-002, 260 Pages, 1998/03

PNC-TJ1559-98-002.pdf:6.08MB

no abstracts in English

Hydraulic test for evaluation of hydrophone VSP

Koide, Kaoru; Yabuuchi, Satoshi*

PNC-TN7410 97-041, 86 Pages, 1997/12

PNC-TN7410-97-041.pdf:3.83MB

This hydlraulic test was carried out at the test site of Tono Geoscience Center, Mizunami-shi, Gifu Pref. in order to evaluate the reliability of the hydraulic conductivity estimated from hydrophone VSP experiment. From March to April 1997, we carried out measurements of pore-water pressure at five depths and permeability tests at seven depths down to G.L. -300m, within a borehole drilled in granitic rock. We compared the results of hydraulic test with hydrophone VSP experiment on condition that a single open fracture existed, and we obtained two notable results. First, for the granitic rock at which a single open fracture was found by BTV and also detected by hydrophone VSP experiment, the hydraulic conductivity was 1.5410 cm/sec, while for the same granitic rock at which another single open fracture was found by BTV but not detected by hydrophone VSP experiment, the hydraulic conductivity was less than 610 cm/sec. Second, we converted the hydraulic conductivity of 1.5410 cm/sec which was obtained in a hydraulic test section of length 2.5m into an equivalent value for a single open fracture of width 1 mm. The converted value (3.810 cm/sec) was similar to the hydraulic conductivity estimated from hydrophone VSP experiment. In conclusion, the hydraulic test results shows that hydrophone VSP is useful to estimate an approximate hydraulic conductivity of a single open fracture.

None

Hirata, Yoichi*

PNC-TJ7439 95-004, 46 Pages, 1995/03

PNC-TJ7439-95-004.pdf:5.19MB

no abstracts in English

None

; Seo, Toshihiro; ; ; Ogata, Nobuhisa; ; Yanagizawa, Koichi

PNC-TN7510 92-007, 27 Pages, 1992/07

PNC-TN7510-92-007.pdf:1.81MB

None