研究者データベース

清水 康行(シミズ ヤスユキ)
工学研究院 土木工学部門 自然災害適応
教授

基本情報

所属

  • 工学研究院 土木工学部門 自然災害適応

職名

  • 教授

学位

  • 工学博士

J-Global ID

研究キーワード

  • 水理学河川工学   hydraulics River Engineering   

研究分野

  • 社会基盤(土木・建築・防災) / 水工学

職歴

  • 2005年04月 - 現在 北海道大学 大学院工学研究院 教授
  • 1994年04月 - 2005年03月 北海道大学 工学部(工学研究院) 助教授
  • 1980年04月 - 1992年03月 北海道開発庁北海道開発局
  • 1988年09月 - 1989年08月 科学技術庁科学技術振興局併任米国留学 米国内務省地質調査所勤務(USGS)

所属学協会

  • 土木学会   American Society of Civil Engineers   International Association for Hydro-Environment Engineering and Reserch   水文・水資源学会   

研究活動情報

論文

  • Yasuyuki Shimizu, Jonathan Nelson, Kattia Arnez Ferrel, Kazutake Asahi, Sanjay Giri, Takuya Inoue, Toshiki Iwasaki, Chang‐Lae Jang, Taeun Kang, Ichiro Kimura, Tomoko Kyuka, Jagriti Mishra, Mohamed Nabi, Supapap Patsinghasanee, Satomi Yamaguchi
    Earth Surface Processes and Landforms, 2019年05月 [査読有り][通常論文]
  • Upstream perturbation and floodplain formation effects on chute cutoff‐dominated meandering river pattern and dynamics
    Steven A. H. Weisscher, Yasuyuki Shimizu, Maarten G. Kleinhans
    Earth Surface Processes and Landforms 2019年04月 [査読有り][通常論文]
  • Consequences of Abrading Bed Load on Vertical and Lateral Bedrock Erosion in a Curved Experimental Channel
    Jagriti Mishra, Takuya Inoue, Yasuyuki Shimizu, Tamaki Sumner, Jonathan M. Nelson
    Journal of Geophysical Research: Earth Surface 123 12 2018年10月 [査読有り][通常論文]
  • Experiments and modelling of cantilever failures for cohesive riverbanks
    Supapap Patsinghasanee, Ichiro Kimura, Yasuyuki Shimizu, Mohamed Nabi
    Journal of Hydraulic Research 56 1 2018年 [査読有り][通常論文]
  • Toshiki Iwasaki, Jonathan Nelson, Yasuyuki Shimizu, Gary Parker
    JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 122 4 847 - 874 2017年04月 [査読有り][通常論文]
     
    Asymptotic characteristics of the transport of bed load tracer particles in rivers have been described by advection-dispersion equations. Here we perform numerical simulations designed to study the role of free bars, and more specifically single-row alternate bars, on streamwise tracer particle dispersion. In treating the conservation of tracer particle mass, we use two alternative formulations for the Exner equation of sediment mass conservation: the flux-based formulation, in which bed elevation varies with the divergence of the bed load transport rate, and the entrainment-based formulation, in which bed elevation changes with the net deposition rate. Under the condition of no net bed aggradation/degradation, a 1-D flux-based deterministic model that does not describe free bars yields no streamwise dispersion. The entrainment-based 1-D formulation, on the other hand, models stochasticity via the probability density function (PDF) of particle step length, and as a result does show tracer dispersion. When the formulation is generalized to 2-D to include free alternate bars, however, both models yield almost identical asymptotic advection-dispersion characteristics, in which streamwise dispersion is dominated by randomness inherent in free bar morphodynamics. This randomness can result in a heavy-tailed PDF of waiting time. In addition, migrating bars may constrain the travel distance through temporary burial, causing a thin-tailed PDF of travel distance. The superdiffusive character of streamwise particle dispersion predicted by the model is attributable to the interaction of these two effects.
  • Jonathan M. Nelson, Yasuyuki Shimizu, Takaaki Abe, Kazutake Asahi, Mineyuki Gamou, Takuya Inoue, Toshiki Iwasaki, Takaharu Kakinuma, Satomi Kawamura, Ichiro Kimura, Tomoko Kyuka, Richard R. McDonald, Mohamed Nabi, Makoto Nakatsugawa, Francisco R. Simoes, Hiroshi Takebayashi, Yasunori Watanabe
    ADVANCES IN WATER RESOURCES 93 62 - 74 2016年07月 [査読有り][通常論文]
     
    This paper describes a new, public-domain interface for modeling flow, sediment transport and morphodynamics in rivers and other geophysical flows. The interface is named after the International River Interface Cooperative (iRIC), the group that constructed the interface and many of the current solvers included in iRIC. The interface is entirely free to any user and currently houses thirteen models ranging from simple one-dimensional models through three-dimensional large-eddy simulation models. Solvers are only loosely coupled to the interface so it is straightforward to modify existing solvers or to introduce other solvers into the system. Six of the most widely-used solvers are described in detail including example calculations to serve as an aid for users choosing what approach might be most appropriate for their own applications. The example calculations range from practical computations of bed evolution in natural rivers to highly detailed predictions of the development of small-scale bedforms on an initially flat bed. The remaining solvers are also briefly described. Although the focus of most solvers is coupled flow and morphodynamics, several of the solvers are also specifically aimed at providing flood inundation predictions over large spatial domains. Potential users can download the application, solvers, manuals, and educational materials including detailed tutorials at www.-i-ric.org. The iRIC development group encourages scientists and engineers to use the tool and to consider adding their own methods to the iRIC suite of tools. Published by Elsevier Ltd.
  • Iwasaki, T, Shimizu, Y, Kimura, I
    Advances in Water Resources 2016年03月 [査読有り][通常論文]
  • Numerical Simulation of Effects of Sediment Supply on Bedrock Channel Morphology
    T. Inoue, T. Iwasaki, G. Parker, Y. Shimizu, N. Izumi, C. P. Stark, J. Funaki
    Journal of Hydraulic Engineering-ASCE 142 7 2016年 [査読有り][通常論文]
  • Iwasaki, T, Shimizu, Y, Kimura, I
    Advances in Water Resources 2015年02月 [査読有り][通常論文]
  • Numerical simulation of river meandering with self-evolving banks,
    Kazutake Asahi, Yasuyuki Shimizu, Jonathan Nelson, Gary Parker
    JOURNAL OF GEOPHYSICAL RESEARCH: EARTH SURFACE 118 1 - 22 2015年 [査読有り][通常論文]
  • Computational modelling of dissipation and regeneration of fluvial sand duunder variable discharges
    M.Nabi, I.Kimura, S.M.Hsu, S.Giri, Y.Shimizu
    JOURNAL OF GEOPHYSICAL RESEARCH: EARTH SURFACE, 120 1 - 14 2015年 [査読有り][通常論文]
  • M. Nabi, H. J. de Vriend, E. Mosselman, C. J. Sloff, Y. Shimizu
    WATER RESOURCES RESEARCH 49 1 - 17 2013年 [査読有り][通常論文]
  • Chang-Lae Jang, Yasuyuki Shimizu
    ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 1 1 15 - 24 2007年03月 [査読有り][通常論文]
     
    Understanding the processes of morphological behavior in braided rivers and alluvial fan deltas is very important for river engineering purposes to manage hydraulic structures and prevent disasters from flood, and environmental purposes to maintain river ecosystem. A two-dimensional numerical model was developed to simulate braided rivers and alluvial fan deltas with erodible bed and banks. A moving boundary-fitted coordinate system was employed to calculate water flow, bed change, and bank erosion. CIP (Cubic Interpolated Pseudo-particle) method was used to calculate flow, which introduced little numerical diffusion. Sediment transport equation in the streamline and transverse wise, considering the secondary flow, was used to estimate bed and bank evolution in time. Bank erosion was simulated by following the procedure proposed by Shimizu (2002). Braided river in laboratory was reproduced for verifying the numerical model in the channel filled with nearly uniform sandy materials. Comparison of numerical results and experimental data has shown relatively good agreements. The evolution processes of the alluvial fan deltas were investigated numerically by controlling the sediment inflow, and the model reproduced the features of alluvial fan deltas, i.e., the successive aggradation, avulsion and then migration of a river.
  • Numerical computation of sand dune migration with free surface flow
    清水 康行
    WATER RESOUCES RESERCH 42 W10422 2006年 [査読有り][通常論文]
  • CL Jang, Y Shimizu
    JOURNAL OF HYDRAULIC ENGINEERING-ASCE 131 7 565 - 575 2005年07月 [査読有り][通常論文]
     
    A two-dimensional numerical model was developed to simulate relatively wide, shallow rivers with an erodible bed and banks composed of well-sorted, sandy materials. A moving boundary-fitted coordinate system was used to calculate water flow, bed change, and bank erosion. The cubic interpolated pseudoparticle method was used to calculate flow, which introduced little numerical diffusion. The sediment-transport equation for the streamline and transverse transport was used to estimate bed and bank evolution over time, while considering the secondary flow. Bank erosion was simulated when the gradient in the cross-sectional direction of the banks was steeper than the submerged angle of repose because of bed erosion near the banks. The numerical model reproduced the features of central bars well, such as bar growth, channel widening due to divergence of the flow around the bars, scour holes at the lee of the bars, and the increase of bar size with time. These features were in accordance with the observations for laboratory experiments. It also reproduced the features of braided rivers, such as the generation of new channels and abandonment of old channels, the bifurcation and confluence of channels, and the lateral migration of the channels. The model showed that the sediment discharge rate fluctuated with time, one of the dynamic features observed in braided channels.
  • Numerical simulations of the behavior of alternate bars with different bank strengths
    Chang-Lae Jang, Yasuyuki Shimizu
    Journal of Hydraulic Research 43 6 595 - 611 2005年 [査読有り][通常論文]
  • Modelling artificial channel and land-use changes and their impact on floods and sediment yield to the Ishikari basin
    Sanit Wongsa, Yasuyuki Shimizu
    Hydrological Processes 18 1837 - 1852 2004年05月 [査読有り][通常論文]
  • ML Zhu, Y Shimizu, N Nishimoto
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS 44 1 55 - 70 2004年01月 [査読有り][通常論文]
     
    There are two main difficulties in numerical simulation calculations using FD/FV method for the flows in real rivers. Firstly, the boundaries are very complex and secondly, the generated grid is usually very non-uniform locally. Some numerical models in this field solve the first difficulty by the use of physical curvilinear orthogonal co-ordinates. However, it is very difficult to generate an orthogonal grid for real rivers and the orthogonal restriction often forces the grid to be over concentrated where high resolution is not required. Recently, more and more models solve the first difficulty by the use of generalized curvilinear co-ordinates (xi, eta). The governing equations are expressed in a covariant or contra-variant form in terms of generalized curvilinear co-ordinates (xi, eta). However, some studies in real rivers indicate that this kind of method has some undesirable mesh sensitivities. Sharp differences in adjacent mesh size may easily lead to a calculation stability problem or even a false simulation result. Both approaches used presently have their own disadvantages in solving the two difficulties that exist in real rivers. In this paper, the authors present a method for two-dimensional shallow water flow calculations to solve both of the main difficulties, by formulating the governing equations in a physical form in terms of physical curvilinear non-orthogonal co-ordinates (s,n). Derivation of the governing equations is explained, and two numerical examples are employed to demonstrate that the presented method is applicable to non-orthogonal and significantly non-uniform grids. Copyright (C) 2004 John Wiley Sons, Ltd.
  • Summary Report of Year 2002 Flood Disaster in Europe
    Year, European Flood, Investigation Team of JSCE
    Journal of Hydroscience and Hydraulic Engineering 21 2 1 - 12 2003年11月 [査読有り][通常論文]
  • The influence to ascent of fish by difference of channel bed topography
    Ohashi, H, Shimizu, Y
    River, Coastal and Estuarine Morphodynamics 2 865 - 872 2003年09月 [査読有り][通常論文]
  • Experiments on braided stream with natural vegetation
    Kurabayashi, H, Shimizu, Y
    River, Coastal and Estuarine Morphodynamics, 2 799 - 806 2003年09月 [査読有り][通常論文]
  • Vegetation effects of channel development in river with erodible banks,River
    Jang, C.-L, Shimizu, Y
    Coastal and Estuarine Morphodynamics, 1 547 - 557 2003年09月 [査読有り][通常論文]
  • Structure-induced bed forms and temporal development of local bed evolution in the bend reach of a laboratory flume
    Giri, S, Shimizu, Y
    River, Coastal and Estuarine Morphodynamics 1 148 - 158 2003年09月 [査読有り][通常論文]
  • Numerical simulation with a subgrid model, a case of a meandering channel with river training structures
    Surajate Boonya-aroonnet, Yasuyuki Shimizu
    ,Proc. of the International Symposium on Shallow Dlows 1 117 - 122 2003年06月 [査読有り][通常論文]
  • Numerical Experiment of the Alternate Bars Considering the Bank Strength
    Chang-Lae JANG, Yasuyuki Shimizu
    Proc. of the International Symposium on Shallow 1 55 - 62 2003年06月 [査読有り][通常論文]
  • Numerical analysis on bed configuration in braided stream with emerged mid-channel bars
    Hiroshi Kurabayashi, Yasuyuki Shimizu
    River Flow 2002 2 2002年09月 [査読有り][通常論文]
  • A method for simultaneous computaion of bed and bank deformation of a river
    清水 康行
    River Flow 2002 2 793 - 802 2002年09月 [査読有り][通常論文]
  • Numerical Calculation of Bed Deformation in Multiple and Braided Bar Stream
    Hiroshi Kurabayashi, Yasuyuki Shimizu, Mutsuhiro Fujita
    Journal of Hydroscience and Hydraulic Engineering 20 1 127 - 136 2002年 [査読有り][通常論文]
  • Numerical Model of Riverbank Erosion and Free Meandering
    C.L.Jang, Y. Shimizu
    Proc. of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics 635 - 644 2001年09月 [査読有り][通常論文]
  • Numerical Calculation of Bed Deformation in Braided Stream
    H. Kurabayashi, Y. Shimizu
    Proc. of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics 713 - 722 2001年09月 [査読有り][通常論文]
  • Application of 1- and 2-Dimensional Coupled Hydrodynamic Model for Kushiro Marshland
    S. Wongsa, Y. Shimizu
    Proc. of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics 831 - 840 2001年09月 [査読有り][通常論文]
  • Numerical Calculation on the Accumulation of Suspended Sediment in Kushiro Wetland
    T. Nakui, Y. Shimizu, W. Sanit, C. Jang
    Proc. of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics 851 - 860 2001年09月 [査読有り][通常論文]
  • 2-Dimensional Numerical Model of Flow in Reservoir with Orifice Gate
    T. Inoue, Y. Shimizu, C. Jang
    Proc. of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics 393 - 402 2001年09月 [査読有り][通常論文]
  • Numerical Calculation od Density Front Advance in a Closed Water System Using a 3-dimensional Turbulent Model
    R. Akahori, Y. Shimizu
    Proc. of 6th Asian Symposium on Visualization 369 - 371 2001年05月 [査読有り][通常論文]
  • Calculation and Visualization of Bed Configuration in Braided Rivers
    H. Kurabayashi, Y. Shimizu
    Proc. of 6th Asian Symposium on Visualization 332 - 334 2001年05月 [査読有り][通常論文]
  • Direct Numerical Simulation of Turbulence Over Two Dimensional Dunes Using CIP Metho
    Yasuyuki Shimizu, Mark. W. Schmeeckle, Jonathan Nelson
    Journal of Hydroscience and Hydraulic Engineering 19 2 85 - 92 2001年 [査読有り][通常論文]
  • 3D numerical calculation of stratified flow in closed water system
    R. Akahori, Y. Shimizu
    Coastal and Estuarine Morphodynamics 1 663 - 672 1999年 [査読有り][通常論文]
  • urbulent Structures and Suspended Sediment Over Two-Dimensional Dunes
    M.W. Schmeeckle, Y. Shimizu, Hoshi, K. Tateya
    Coastal and Estuarine Morphodynamics 1 151 - 260 1999年 [査読有り][通常論文]
  • Geometry and Migration Characteristics of Sand Bars in Meandering Channel
    Shimizu,Y, Fujita,M, Hirano,M
    Journal of Hydroscience and Hydraulic Engineering 15 1 1 - 9 1997年 [査読有り][通常論文]
  • Numerical simulation of flow and bed deformation of river
    Y. Shimizu, T. Itakura
    Journal of Hydroscience and Hydraulic Engineering, Special Issues, S1 2 161 - 179 1993年 [査読有り][通常論文]
  • Observation of flood flow and river bed evolution
    Y. Shimizu, Y. Watanabe
    Journal of Hydroscience and Hydraulic Engineering S1 2 141 - 160 1993年 [査読有り][通常論文]
  • Calculation of boundary shear stress in open channel flow
    Y. Shimizu, K. Houjou, C. Ishii
    Journal of Hydroscience and Hydraulic Engineering 8 2 21 - 37 1990年 [査読有り][通常論文]
  • 3D-Computation of flow and bed deformation
    Y. Shimizu, H. Yamaguchi, T. Itakura
    Journal of Hydraulic Engineering 116 9 1090 - 1108 1990年 [査読有り][通常論文]
  • Y SHIMIZU, T ITAKURA
    JOURNAL OF HYDRAULIC ENGINEERING-ASCE 115 3 367 - 384 1989年03月 [査読有り][通常論文]
  • Bed variations during the 1981-flood in the lower Ishikari River
    Y. Shimizu, T. Itakura, T. Kishi, M. Kuroki
    Journal of Hydroscience and Hydraulic Engineering 5 1 481 - 486 1987年 [査読有り][通常論文]
  • Observations of bed topography during 1981-flood in the Ishikari River
    T. Itakura, H. Yamaguchi, Y. Shimizu, T. Kishi, M. Kuroki
    Journal of Hydroscience and Hydraulic Engineering 4 2 1 - 65 1986年 [査読有り][通常論文]

講演・口頭発表等

  • 2017年アメリカ合衆国ハリケーン ハービー・イルマによる豪雨災害  [通常講演]
    清水 康行
    第63回水工学講演会 2018年11月 口頭発表(基調)

その他活動・業績

特許

  • 特願2016-095728:河床侵食抑制部材および河床侵食抑制工法  2016年
    清水 康行

受賞

  • 2017年08月 公益財団法人河川財団 平成29年度河川整備基金優秀成果賞
     
    受賞者: 清水 康行
  • 2013年12月 International Association for Hydro-Environment Engineering and Research (IAHR) 4th M. Selim Yalin Lifetime Achievement Award
     
    受賞者: 清水 康行
  • 2011年 北海道開発技術センター 平成23年度 寒地技術賞(学術部門)受賞
     
    受賞者: 清水 康行
  • 2007年 教育貢献賞
     
    受賞者: 清水 康行
  • 2007年 土木学会応用力学シンポジウム 第9回応用力学論文集論文賞受賞
     
    受賞者: 清水 康行

共同研究・競争的資金等の研究課題

  • 蛇行長期動態の物理機構に基づく自然営力順応型川づくり
    日本学術振興会:科学研究費補助金 基盤研究(A)
    研究期間 : 2015年 -2019年 
    代表者 : 清水 康行
  • 固液連成型流域洪水土砂流出モデルの開発
    日本学術振興会:科学研究費補助金 基盤研究(A)
    研究期間 : 2007年 -2010年 
    代表者 : 清水 康行
  • 移動床水理学における非線形力学の展開
    日本学術振興会:科学研究費補助金 基盤研究(B)
    研究期間 : 2004年 -2006年 
    代表者 : 清水 康行
  • 複列・網状砂州河川の形成機構に関する研究
    日本学術振興会:科学研究費補助金 基盤研究(B)
    研究期間 : 2001年 -2003年 
    代表者 : 清水 康行
  • 複断面の河川の流れに関する日英共同研究
  • 河川の流れと河床変動に関する研究
  • UK-Japan Coorperative Resarch on Compound Channel Rivers
  • Research on flow and bed deformation of Rivers

教育活動情報

主要な担当授業

  • 水理学演習Ⅱ
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
  • Computational Hydraulics(数値計算水理学E)
    開講年度 : 2018年
    課程区分 : 修士課程
    開講学部 : 工学院
    キーワード : Numerical modeling of flow, Water quality and sediment transport, Computational fluid dynamic, One-dimensional model of flow, Three-dimensional flow modeling
  • 河川管理工学特論
    開講年度 : 2018年
    課程区分 : 修士課程
    開講学部 : 工学院
    キーワード : Numerical modeling of flow, Water quality and sediment transport, Computational fluid dynamic, One-dimensional model of flow, Three-dimensional flow modeling
  • 大学院共通授業科目(教育プログラム):JICA開発大学院連携プログラム
    開講年度 : 2018年
    課程区分 : 修士課程
    開講学部 : 大学院共通科目
    キーワード : Disaster prevention; Natural disaster; Flood; Heavy rainfall; Tsunami; Liquefaction; Earthquake; Japan’s ODA
  • Computational Hydraulics(数値計算水理学E)
    開講年度 : 2018年
    課程区分 : 博士後期課程
    開講学部 : 工学院
    キーワード : Numerical modeling of flow, Water quality and sediment transport, Computational fluid dynamic, One-dimensional model of flow, Three-dimensional flow modeling
  • 河川管理工学特論
    開講年度 : 2018年
    課程区分 : 博士後期課程
    開講学部 : 工学院
    キーワード : Numerical modeling of flow, Water quality and sediment transport, Computational fluid dynamic, One-dimensional model of flow, Three-dimensional flow modeling
  • 国際プロジェクト論
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
    キーワード : 国際プロジェクト 基準の国際標準化 教育研究の国際化 土木技術者の国際性
  • 国際交流Ⅱ
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 国際本部
    キーワード : 国際プロジェクト 基準の国際標準化 教育研究の国際化 土木技術者の国際性
  • 水理学Ⅰ
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
    キーワード : 次元解析 相似則 静水圧 エネルギー保存則 運動量保存則  摩擦損失 管路流
  • 水理学演習Ⅰ
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
    キーワード : 次元解析 相似則 静水圧 エネルギー保存則 運動量保存則 摩擦損失 管路流
  • 水理学Ⅱ
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
    キーワード : 等流 急変流 漸変流 常流と射流 非定常流
  • 科学・技術の世界
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : 未来,科学技術,地球環境問題,宇宙開発,ロボット開発,クルマ,防災,社会基盤,生活
  • 社会基盤と国土政策
    開講年度 : 2018年
    課程区分 : 学士課程
    開講学部 : 工学部
    キーワード : 社会基盤、国土政策、持続的発展、環境、維持管理

大学運営

委員歴

  • 2009年 - 現在   国土交通省   地域課題評価分科会委員
  • 2007年 - 現在   一般財団法人北海道河川財団   研究所長
  • 2006年 - 現在   北海道開発局   リバーカウンセラー
  • - 2020年09月   IAHR   IAHR-APD2020実行委員会委員長
  • 2006年 - 2013年   日本学術会議   連携会員・分科会幹事
  • 2011年 - 2011年   国土交通省   河川津波対策検討委員会
  • - 2007年09月   IAHR   5th IAHR Symposium on River, coastal and estuarine morphodynamics(RCEM 2007)実行委員会委員
  • - 2001年09月   IAHR   2nd IAHR Symposium on River, coastal and estuarine morphodynamics(RCEM 2001)実行委員会委員長
  • 1995年 - 2000年   土木学会   水理委員会英字論文査読委員   土木学会
  • 公益社団法人土木学会水工学委員会   実行委員長

社会貢献活動

  • 国会衆議院災害対策特別委員会参考人
    期間 : 2016年11月24日
    役割 : その他
    主催者・発行元 : 衆議院
    イベント・番組・新聞雑誌名 : 衆議院災害対策特別委員会


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