Evaluation of safety for embankment due to rain fall and earth quake

降雨地震路基安全评价

• 批准号: 22560497
• 负责人: NISHIMURA Tomoyoshi
• 金额: $ 2.5万
• 依托单位: Ashikaga Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560497/
• 关键词: 不飽和土; サクション; 繰返し三軸試験; 液状化; 降雨浸透; 加圧膜法; 水分特性曲線; 相対密度; 三軸圧縮試験; 過剰間隙水

This study obtained as followings; SWCC is useful to conduct effective stress analysis for unsaturated soils. Collapse behavior performed during seepage and applying of suction that influence to unsaturated soil properties. At cyclic loading triaxial tests under undrained conditions, excess pore-water pressure occurred a few. Other hands, unsaturated soils due to seepage described that excess pore-water ratio approached to 1.0 and took a failure as fully saturated soil. Also suction control technique was developed through this test program.

本研究取得以下成果； SWCC 可用于对非饱和土进行有效的应力分析。渗流和施加吸力过程中发生的塌陷行为会影响非饱和土的性质。在不排水条件下的循环加载三轴试验中，出现了一些超孔隙水压力。另一方面，由于渗漏而导致的非饱和土，其超孔隙水比接近1.0，视为完全饱和土。通过该测试程序还开发了吸力控制技术。

项目成果

Application of micro-porous membrane technology for measurement of soil-water characteristic curve

微孔膜技术在土水特征曲线测量中的应用

• 发表时间: 2013
• 作者: Nishimura; T
• 通讯作者: T

Micro-porous membrane technology for measurement of soil-water characteristic curve.

土壤-水特征曲线测量的微孔膜技术。

• 发表时间: 2012
• 作者: Nishimura; T.
• 通讯作者: T.

不飽和履歴を受けた不飽和土の繰返し三軸試験結果

非饱和土经历非饱和历史的重复三轴试验结果

• 发表时间: 2013
• 作者: 松本政文

Determination of air entry value for different compacted unsaturated soils

不同压实非饱和土空气进入值的确定

• 发表时间: 2012
• 作者: Nishimura; T.; Koseki; J. & Rahardjo; H
• 通讯作者: H

Micro-porous membrane technology for measurement of soil-water characteristic curve

土水特征曲线测量的微孔膜技术

• 发表时间: 2012
• 作者: T.Nishimura; J.Koseki; D.G.Fredlund; H.Rahardjo
• 通讯作者: H.Rahardjo