Precise Modeling of Hydraulic Structures of Geologic Media for Predicting Long-Term Groundwater Flow

用于预测长期地下水流的地质介质水力结构的精确建模

• 批准号: 20360408
• 负责人: KOIKE Katsuaki
• 金额: $ 8.32万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360408/
• 关键词: 透水係数; 亀裂; 地質構造; 岩石物性; 水質; 空間モデリング; 地球統計学; 花崗岩体

Two precise spatial modeling methods for rock fracture distributions with incorporation of location and orientation, which control the permeability of geologic media, and for hydraulic conductivity distribution with different scales from rock sample to whole rock body were developed. By integrating these two spatial models, several important characteristics such as a relationship between the high permeable zones and the configuration of rock fractures were clarified. These models were also able to be combined with a numerical simulation of groundwater flow efficiently. As the result, the effect of faults on the groundwater flow and the mechanism of chemical concentration changes with the flow were estimated by the simulation. In addition, prediction of long-term groundwater flow in consideration of the topographic changes by the erosion could be implemented through the tools constructed by this study.

提出了控制地质介质渗透性的裂隙分布的位置和方位相结合的空间精确建模方法和从岩样到整个岩体不同尺度的导水率分布的空间精确建模方法。通过整合这两个空间模型，几个重要的特征，如高渗透带之间的关系和岩石裂缝的配置澄清。这些模型也能够有效地与地下水流的数值模拟相结合。模拟结果表明，断层对地下水流的影响及化学物质浓度随水流变化的机理。此外，通过本研究构建的工具，可以实现考虑侵蚀引起的地形变化的长期地下水流预测。

项目成果

Three-dimensional Geological Structure Modeling for Groundwater System Elucidation in a Wide Area Using MT Method

MT法三维地质结构模型阐释大范围地下水系统

• 发表时间: 2010
• 期刊: Proceedings of 11th International Symposium on Mineral Exploration (ISME-XI)
• 作者: Keiko SASAKI;Qianqian YU;Takuya KASAYAMA;Hisafumi Aasue
• 通讯作者: Hisafumi Aasue

衛星リモートセンシングによる地下の地質構造と物性の探査

利用卫星遥感勘探地下地质结构和物性

• 发表时间: 2010
• 期刊: 資源・素材学会春季大会講演集(I)資源編
• 作者: Hisafumi Aasue;Taiki Kubo;Masahito Sasahara;Tohru Yoshinaga;Katsuaki Koike;Katsuaki Koike;Kaoru Koide;Ling Wang;小池克明;多田隈直幸;Irwan Iskandar;佐藤晃;佐藤晃;麻植久史;麻植久史;小池克明
• 通讯作者: 小池克明

Large-scale modeling of 3D fracture distributions for hydrogeological characterization

用于水文地质表征的 3D 裂缝分布大规模建模

• 发表时间: 2009
• 期刊: Proceedings of the International Association of Mathematical Geology (IAMG09) CD-Rom(pfd\Katsuaki_Koike Full Paper\).
• 作者: Katsuaki Koike;Chunxue Liu;Alaa Masoud;Kenji Amano;Arata Kurihara
• 通讯作者: Arata Kurihara

Characterization of Temporal Change of Deep Resistivity around Geothermal Reservoir Using Magnetotelluric Survey

利用大地电磁勘探表征地热储层周围深层电阻率随时间变化

• 发表时间: 2010
• 期刊: Proceedings World Geothermal Congress 2010
• 作者: Qianqian YU;Takuya KASEYAMA;Keiko SASAKI;Tsuyoshi HIRAJIMA;槙原慧;麻植久史
• 通讯作者: 麻植久史

地質構造の空間モデリング手法の開発-瑞浪超深地層研究所における取り組み

地质构造空间模拟方法的开发 - 瑞浪地下研究所的努力

• 发表时间: 2010
• 期刊: 資源・素材2010.資源・素材学会論文集
• 作者: 鶴田忠彦;松岡稔幸;栗原新;田上雅彦;天野健治;小池克明;山田泰広
• 通讯作者: 山田泰広