None

; Takeuchi, Shinji; ; ; Saegusa, Hiromitsu

Donen Giho, (107), p.21 - 31, 1998/09

https://jopss.jaea.go.jp/pdfdata/PNC-TN1340-98-003.pdf

None

None

; Takeuchi, Shinji; ; ; Saegusa, Hiromitsu

Donen Gijutsu Repoto TR/GE 98-01, p.1 - 67, 1998/00

None

None

Ogata, Nobuhisa; Koide, Kaoru; ;

PNC TN7420 96-008, 14 Pages, 1996/08

PNC-TN7420-96-008.pdf:0.67MB

None

Groundwater flow analyses in Japan; part 3 : A Case study in Hokkaido

; ; Koide, Kaoru; Yanagizawa, Koichi

PNC TN7410 95-012, 65 Pages, 1995/05

PNC-TN7410-95-012.pdf:1.71MB

An extensive study program has been carried out by PNC to estimate hydrogeological characteristics of deep underground in Japan. As a part of this program, groundwater flow analyses in Hokkaido were conducted. For the analyses of Hokkaido area (500 km 400 km 10 km deep), a hydrogeological model representing topography, distribution of hydraulic conductivity was developed on the strength of information available from open literature. By the use of this model, steady state three-dimensional groundwater flow under a saturated-unsaturated condition was calculated by means of finite element method. The results are as follows : (1)Distribution of piezometric head corresponds with topography in the study area. (2)Piezometric head distribution is hydrostatic below E.L.-1000 m in the study area. (3)Hydraulic gradient in the study area is less than 0.04 below E.L. -500 m. (4)Difference of boundary conditions at the shore side this model does not affect the result of the analyses.