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; ; Yamazaki, Toshihiko; ; ; Kondo, Toshinari*; *
JNC TN8400 2001-030, 99 Pages, 2002/01
JNC-TN8400-2001-030.pdf:13.24MB
There is a great deal of that we build a Base-Isolated building with the quaternary deposit ground. In an atomic energy institution, a study request is strong. When we build a Base-Isolated building with the quaternary deposit ground, evaluation of earthquake vibration of a vertical direction is an important problem. In an atomic energy institution, we design it by big earthquake load, and therefore examination is necessary. And, in this study, we do examination to build a Base-Isolated building with the quaternary deposit ground, we report it about an evaluation method of a design. Furthermore, we report that we estimated pipe laying and machinery to put in a building of Base-lsolated.
; Umeda, Koji; Koide, Kaoru; Imai, Hisashi*; Yanagizawa, Koichi
PNC TN7410 94-029, 60 Pages, 1994/05
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 Northeast Japan were conducted. For the analyses of Northeast Japan area (300 
500km 10 km deep), a hydrogeological model expressing topography, distribution of hydraulic conductivity was developed with 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 thc study area. (3)Hydraulic gradient in the study area is less than 0.04 below E.L. -500 m. (4)Analytical seepage points appear in principal catchment areas. (5)Difference of boundary conditions such as permeable or impermeable at the shore side of this model does not affect the results of the analyses. (6)In case of setting higher hydraulic conductivity to Holocene and Pleistocene scdimentary rocks than that to Pliocene sedimentary rocks, the results of the analysis are as same as the inverse case while discharge rate decreases.