The development of change forecast technique of moisture distribution for the filled-valley ground

填谷地湿度分布变化预报技术的研究进展

• 批准号: 21860008
• 负责人: MORI Tomohiro
• 金额: $ 1.71万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21860008/
• 关键词: 土の水分特性; 不飽和土; 浸透; 谷埋め盛土; 飽和度

The unsaturated seepage experiment which used large scale acrylic column was performed to clarify influences that the mixing rate of gravel and of void and the dry density of fine fraction exert on the soil water character. As a result, it was shown that the influence about the shape of soil water characteristic curve was little on the mixing rate of gravel and of void, and large on the dry density of fine fraction. Then, the water seepage velocity of unsaturated soil became small when voids were mixed with soil. Therefore it was shown that water passed through not void but fine fraction when water infiltrated in the unsaturated ground.

采用大型丙烯酸柱进行非饱和渗流试验，阐明砾石与空隙的混合比例以及细粒干密度对土壤水性的影响。结果表明，土壤水特征曲线形状对砾石和空隙的混合率影响较小，而对细粒级干密度影响较大。然后，当孔隙与土体混合时，非饱和土的渗水速度变小。因此表明，当水渗透到非饱和土壤中时，水不是通过空隙而是通过细小部分。

项目成果

土柱法による礫分を含む土の水分特性に関する研究

土柱法研究含砾石土的水分特性

• 发表时间: 2010
• 作者: 佐々木航平;森友宏;風間基樹;渦岡良介
• 通讯作者: 渦岡良介

ヒステリシスを考慮した土の水分特性モデルと不飽和浸透実験の再現解析事例

考虑滞后现象的土壤水分特性模型及非饱和入渗实验再现分析实例

• 发表时间: 2010
• 作者: 森友宏;佐々木航平;渦岡良介;風間基樹
• 通讯作者: 風間基樹

ヒステリシスを考慮した土の水分特性曲線モデルと不飽和浸透実験の再現解析事例

考虑滞后现象的土壤水分特征曲线模型及非饱和入渗实验再现分析实例

• 发表时间: 2010
• 作者: Dai Owaki;Masatoshi Koyama;Shin'ichi Yamaguchi;Shota Kubo;Akio Ishiguro;森友宏
• 通讯作者: 森友宏

The soil water characteristic curve considered hysteresis and the case study of analysis for reproducing the unsaturated seepage experiment

考虑滞后现象的土水特征曲线及再现非饱和渗流实验分析实例

• 发表时间: 2010
• 作者: T. Mori;K. Sasaki;M. Kazama;R. Uzuoka
• 通讯作者: R. Uzuoka

礫分を含む土の不飽和浸透模型実験

含砾石土非饱和渗流模型试验

• 发表时间: 2010
• 作者: 佐々木航平;森友宏;風間基樹
• 通讯作者: 風間基樹