緩衝材透水特性II 技術資料.PDF

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3 JNC TN ) exp( 2 ρ b ρ b κ + = κ [m 2 ] b ρ [Mg/m 3 ] * **

4 JNC TN March2003 Hydraulic characteristics of Buffer Material-II The influence which saline water exert on hydraulic properties of bentonite buffer material (Testing Document) Hirohito KIKUCHI**, Kenji TANAI*, Kazuhiro MATSUMOTO**, Haruo SATOU*, Kenichi UENO*, and Takeshi TETSU* Abstract By the second progress report(h12) on research and development for the geological disposal of HLW in Japan, Japan Nuclear Cycle Development Institute (JNC) extended the database on basic properties of compacted bentonite, and this was mainly obtained by using distilled water as test fluid. This report presents influence of dry densities, silica sand content and temperature on the hydraulic properties of compacted bentonite under condition of marine-based groundwater, which was simulated by use of synthesized seawater. We found that hydraulic conductivity increases with increasing temperature, and the relationship between effective clay density and intrinsic permeability is obtained by the following equation. κ = exp( ρ b 7.878ρ b ) where κ is intrinsic permeability[m 2 ], ρ is effective clay density[mg/m 3 ]. b Intrinsic permeability using synthetic seawater as test fluid is about ten times higher then that under distilled water condition. Difference between them however becomes smaller with increasing dry density. We also examined the smectite layers distance after test samples, but remarkable change was not found between them. 2 * Barrier performance group, Waste isolation research division, Waste management and fuel cycle research center, Tokai works ** Inspection Development Corporation

14 w ρ n S r ρ s Ww w = 100 W s ρ = W s d V V = v ρ = 1 d n 100 V ρs S V 1 w r = = 1 Vv 0.01 d w ρs

15 ρ d w n r S ρ d

16 Q k A i i A k Q = Q

18 Hydraulic conductivity[m/s] Temperature [] Hydraulic conductivity[m/s] Temperature []

19 k κ ρ g k = κρ g / µ ρ ρ µ ν µ ν

20 k κ ρ κ R s d ρb ρ s ρ b ρd (100 Rs ) = Rs 100 ρd ρ s ρb κ κ = exp( ρ b 7.878ρ b ) 2

22 Intrinsic permeability [m 2 ] Temperature [] Intrinsic permeability [m 2 ] Temperature []

23 κ = exp( ρ d 8.289ρ d R 2 = ) Intrinsic permeability [m 2 ] κ = exp( ρ d 7.842ρ d R 2 = 9907 Sand ratio= 0wt% Sand ratio=30wt% 2 ) Dry density [Mg/m 3 ] Intrinsic permeability [m 2 ] 2 κ = exp( ρ b 7.878ρ b ) R 2 = 9908 Effective clay density [Mg/m 3 ]

25 Temperature Hydraulic conductivity[m/s] Synthetic seawater k = exp( ρ b 5.689ρ R 2 = 9907 Distilled water k = exp( ρb 4.803ρ R 2 = b 2 b ) ) Effective clay density [Mg/m 3 ]

30 Quartz peak Intensity [cps] 2(cuk )[deg] Quartz peak Intensity [cps] 2(cuk )[deg]

31 Intensity [cps] Distilled water Synthetic seawater 2(cuk)[deg]

34 JNC TN PNC TN PNC TN wt%NaCl Ca, PNC TN JACOB BEARHydraulics of GroundwaterMcGraw-hill publishing company 1979 JIS K JIS Z PNC TN p R.N.Yong Soil suction and soil-water potentials in swelling clays in engineered clay barriers Eng.Geol.,54,

35 JNC TN Appendix

36 JNC TN

37 JNC TN W

38 JNC TN W W ) ( 1 W0 1 W W 2 W ) ( 2 W0 0

39 JNC TN D W2 W 0 0 [( W W0 )/( W1 W0 )] ( ρ w ρ a + ρa D = ) W 2 W1 W 2 W1 W 0 ρ w ρ a Cl Cl Cl Density[g/cm 3 ] water sea water(chemical Oceanography) test-1 test-2 Temperature

40 JNC TN w ρ a ρ D D D D

41 JNC TN ρw ρa D D D D

42 JNC TN ρw ρa D D D D

43 JNC TN

44 JNC TN m 1 m 1 m 2 ν t2 ν = ν t 1 1 ν 1 t1 m 1 m 2 t2 m 1 m 2 µ ρ µ = ν ρ

45 JNC TN Viscosity mpa s water sea water NaCl(density5%) NaCl(density10%) NaCl(density15%) NaCl(density20%) NaCl(density25%) Temperature Viscosity mpa s Density of NaCl [%]

46 JNC TN ν 1 t 2 t ν ρ µ µ

47 JNC TN JIS K JIS Z JIS R J.P.Riley and G.SkirrowChemical Oceanography

振動充填燃料の粒子焼結試験実施計画書

振動充填燃料の粒子焼結試験実施計画書 C JNCTJ8410 2004-006 2004 3 ( ) UPRISE Nd 250mL 0.2 mol Nd Nd (FP)DF DOBA DOiBA NN'-2--1.6 mol/l NN'- -1.7 mol/l NN'-1.5 mol/l DOBA 1mol/L 3.5mol/L 2 NN'--1.7 mol/l NN' -1.5 mol/l ZrRu Ce DF 150 100 Sr