Developments of predictive models for mass transport and mechanical properties considering subsurface temperature

考虑地下温度的质量传递和机械性能预测模型的开发

• 批准号: 24760375
• 负责人: HAMAMOTO Shoichiro
• 金额: $ 2.91万
• 依托单位: The University of Tokyo (2013)Saitama University (2012)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760375/
• 关键词: 物質輸送係数; 力学パラメータ; 温度依存性; 溶質移動; 圧密; 温度環境; 透水; 溶質分散

In this study, we aimed at understandings of temperature dependencies on mass transport and mechanical properties of soils, and conducted oedometer tests and solute transport experiments under temperature control using Kaolin and alluvial clays. The oedometer tests using Kaolin clays showed temperature increase enhanced consolidation yield stress, consolidation index, and shear modulus possibly due to an increased cementation between soil particles. Temperature dependency on solute transport characteristic confirmed higher hydraulic conductivity and solute diffusion coefficient for samples at higher temperature. This trend could be expressed by modifying existing predictive models for those parameters. In addition, solute transport experiments using alluvial clays showed that temperature dependency on solute dispersion coefficient was not so significant as compared to retardation factor.

在这项研究中，我们的目的是了解温度依赖性的质量传输和力学性质的土壤，并进行了oedometer测试和溶质运移实验温度控制下，高岭土和冲积粘土。使用高岭土的固结仪试验表明，温度升高增强固结屈服应力，固结指数，和剪切模量可能是由于土壤颗粒之间的胶结作用增加。温度对溶质运移特性的依赖性证实了较高温度下样品的水力传导系数和溶质扩散系数。这一趋势可以通过修改这些参数的现有预测模型来表示。此外，利用冲积粘土进行的溶质运移实验表明，温度对溶质弥散系数的依赖性不如阻滞因子那么显著。

项目成果

異なる水分条件を有する砂の熱特性 : 粒子の粒径・形状,および石英含有率の影響

不同湿度条件下砂的热特性：粒径、形状和石英含量的影响

• 发表时间: 2013
• 期刊: 土壌の物理性
• 作者: Mon;E. E.;S. Hamamoto;K. Kawamoto;M. Oda;and T. Komatsu;鴨志田剛久,濱本昌一郎,川本健,榊利博,小松登志子
• 通讯作者: 鴨志田剛久,濱本昌一郎,川本健,榊利博,小松登志子

Maxwell’s Law Based Models for Liquid and Gas Phase Diffusivities in Variably-Saturated Soil

基于麦克斯韦定律的变饱和土壤中液相和气相扩散率模型

• DOI: 10.2136/sssaj2012.0033
• 发表时间: 2012
• 期刊: Soil Science Society of America Journal
• 影响因子: 2.9
• 作者: S. Hamamoto;P. Møldrup;K. Kawamoto;T. Komatsu
• 通讯作者: T. Komatsu

地中熱利用と地盤環境

地热利用与地面环境

• 发表时间: 2012
• 期刊: 農業機械学会誌
• 作者: Weiwei Lin;Teruhiko Yoda;Nozomu Taniguchi;Yusuke Sugino;斎藤広隆,濱本昌一郎,小松登志子
• 通讯作者: 斎藤広隆,濱本昌一郎,小松登志子

Temperature effects on geotechnical properties of kaolin clay: Simultaneous measurements of consolidation characteristics, shear stiffness, and permeability using a modified oedometer

• DOI: 10.5176/2335-6774_1.1.1
• 发表时间: 2013-04
• 期刊: Journal of Renewable and Sustainable Energy
• 影响因子: 2.5
• 作者: E. Mon;S. Hamamoto;K. Kawamoto;T. Komatsu;P. Møldrup

Effect of temperature change on shear modulus of kaolin clay in the secondary compression stage

二次压缩阶段温度变化对高岭土剪切模量的影响

• 发表时间: 2013
• 期刊: 18th Southeast Asian Geotechnical & Inaugural AGSSEA Conference
• 作者: Mon;E. E.;S. Hamamoto;K. Kawamoto;M. Oda;and T. Komatsu
• 通讯作者: and T. Komatsu