JAEA-Research-2010-034.pdf:16.23MB - JAEAの研究開発成果 ...

JAEA-Research 2010-034
表 5.4-1 PHREEQC により設定した緩衝材中の初期間隙水組成 ························································ 88
表 5.4-2 黄鉄鉱の単位体積あたりの表面積 ··························································································· 89
図目次
図 1-1 多重バリアシステムの概要 ·········································································································· 1
図 1-2 ニアフィールドで予想される主な個別プロセスの概要 ·························································· 2
図 2.1-1 連成解析システム Couplys の体系概要 ··················································································· 4
図 2.1-2 THMC モデルの解析フロー ······································································································ 5
図 3.1-1 THMC モデルで考慮可能なプロセスと包括 FEP リストとの対応関係 ································· 6
図 3.3-1 クニゲル V1 の固有透過度 ······································································································· 15
図 3.3-2 Ca 溶出量に伴う支保工劣化関数(空隙率および透水特性) ·············································· 16
図 3.3-3 要素内体積の割合(1) ················································································································· 16
図 3.3-4 要素内体積の割合(2) ················································································································· 18
図 3.4-1 膨潤応力の比較 ·························································································································· 24
図 3.4-2 正規化膨潤応力と飽和度の関係 ······························································································· 24
図 3.4-3 弾性係数の比較 ·························································································································· 25
図 3.4-4 Ca 溶出量に伴う支保工劣化関数(力学特性) ······································································ 26
図 3.5-1 質量粒子解析のフロー ·············································································································· 28
図 3.5-2 並列処理機能の検証 ·················································································································· 29
図 3.5-3 有限体積法格子の概念図 ·········································································································· 29
図 3.5-4 有限要素メッシュ-有限体積法格子の対応概要 ··································································· 30
図 3.6-1 不飽和緩衝材中の保水形態を考慮した地球化学反応モデルの概念と計算フロー ············· 38
図 3.6-2 イオン交換サイト濃度の更新方法の概要(イオン組成が 2 種類の場合/NaZ・CaZ2) ·········· 39
図 4.1-1 Case-1 の比較解析結果 ·············································································································· 46
図 4.1-2 Case-2 の比較解析結果 ·············································································································· 48
図 4.1-3 Case-3 の比較解析結果 ·············································································································· 50
図 4.2-1 一次元塩濃縮試験装置 ·············································································································· 52
図 4.2-2 三次元塩濃縮試験装置 ·············································································································· 53
図 4.2-3 熱電対の設置状況 ······················································································································ 53
図 4.2-4 試料のサンプリング状況 ·········································································································· 54
図 4.2-5 含有元素の抽出分析手法 ·········································································································· 54
図 4.2-6 PHREEQC を用いた実験結果に基づく緩衝材中の間隙水組成推定フロー ························· 59
図 4.2-7 解析モデルの概要 ······················································································································ 65
図 4.2-8 塩化物イオンを用いた緩衝材中の拡散係数に関する既往の知見 ········································ 66
図 4.2-9 Arrhenius 関数パラメータ D0 ···································································································· 67
図 4.2-10 一次元塩濃縮試験結果に対する検証解析結果 ······································································ 70
図 4.2-11 三次元塩濃縮試験結果に対する検証解析結果(4 週間) ························································· 72
図 4.2-12 三次元塩濃縮試験結果に対する検証解析結果(21 週間) ······················································· 74
図 4.2-13 三次元塩濃縮試験結果に対する検証解析結果(コンター図) ·················································· 76
図 5.1-1 熱特性の実験値と解析条件値の比較 ························································································ 81
図 5.1-2 物理・力学特性に関する実験値と解析条件値の比較 ································································ 82
図 5.1-3 泥岩の van Genuchten パラメータに関する既往の知見 ······························································ 83
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