Constitutive Model of Unsaturated Soils Considering the Effect of Intergranular Physicochemical Forces
文献类型：期刊论文
| 作者 | Ma, Tiantian2; Chen, Pan2; Xia, Xiaolong2; Wei, Changfu1,2 |
| 刊名 | JOURNAL OF ENGINEERING MECHANICS
 |
| 出版日期 | 2016 |
| 卷号 | 142期号:11页码:- |
| 关键词 | Unsaturated soils Chemomechanical behavior Intergranular stress Pore water pressure Generalized osmotic pressure |
| ISSN号 | 0733-9399 |
| DOI | 10.1061/(ASCE)EM.1943-7889.0001146 |
| 英文摘要 | A clayey soil is an electrically charged porous medium whose behavior is sensitive to the variations in the composition and concentration of pore water. Pronounced physicochemical interaction can occur between the solid particle and the pore water so that the clayey soil shows strong chemomechanical coupling effects and complex mechanical behaviors. If the degree of saturation varies the pore-water composition and concentration can also vary, resulting in intensive physicochemical effects in the soil. In this paper, a conceptual constitutive model for unsaturated soils is proposed to explain the influence of pore-fluid chemistry on the chemomechanical behavior of unsaturated clayey soils. A new intergranular stress which can effectively account for the physicochemical effects including osmosis, capillarity, and adsorption is introduced as the stress-state variable. The formulation of the proposed model can lead to a remarkable unification of the experimental results obtained under complex chemomechanical loading conditions. The proposed model is validated by comparing the theoretical calculations with the experimental results. It is shown that the proposed model is capable of addressing the effect of water content, concentration and species variation on the mechanical behavior of the clayey soil. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000386362500006 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3945]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Guilin Univ Technol, Coll Civil & Architectural Engn 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; |
| 推荐引用方式 GB/T 7714 | Ma, Tiantian,Chen, Pan,Xia, Xiaolong,et al. Constitutive Model of Unsaturated Soils Considering the Effect of Intergranular Physicochemical Forces[J]. JOURNAL OF ENGINEERING MECHANICS,2016,142(11):-. |
| APA | Ma, Tiantian,Chen, Pan,Xia, Xiaolong,&Wei, Changfu.(2016).Constitutive Model of Unsaturated Soils Considering the Effect of Intergranular Physicochemical Forces.JOURNAL OF ENGINEERING MECHANICS,142(11),-. |
| MLA | Ma, Tiantian,et al."Constitutive Model of Unsaturated Soils Considering the Effect of Intergranular Physicochemical Forces".JOURNAL OF ENGINEERING MECHANICS 142.11(2016):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。