An effective stress-based approach to modeling the chemo-mechanical behavior of saturated active clay
文献类型：期刊论文
| 作者 | Song, Zhaoyang4; Ma, Tiantian1; Liu, Yan2; Cai, Guoqing2; Wei, Changfu1,3 |
| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
 |
| 出版日期 | 2024-06-06 |
| 页码 | 16 |
| 关键词 | chemically active clay effective stress constitutive model physicochemical effect |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2022-0233 |
| 英文摘要 | Pore water chemistry can exert significant controls over the chemo-mechanical behavior of chemically active soils, which has not been characterized by using the traditional Terzaghi's effective stress to a satisfactory extent. In this paper, based on the concept of intergranular stress, a generalized effective stress for saturated active soils is reconceptualized and incorporated into the framework of the modified Cam-Clay (MCC) model to describe the mechanical response of soils upon complex chemical and mechanical loadings. The proposed model is capable of capturing very well the diverse features of the chemo-behavior of saturated active soils, while inheriting all the advantages of the MCC model, by introducing only one additional parameter. Within this context, a simple equation is derived to predict the development of swelling pressure with the variation of pore water chemistry. It is shown that the proposed swelling-pressure equation predicts very well the development of swelling pressure for expansive soils with a dilute pore solution, though discrepancy appears at high concentration. Because the double layer of clay particles is severely suppressed at high salt concentration, the microfabric of soil can be significantly changed, pointing to the importance of taking into account the effect of soil fabric in the constitutive modeling of active soils with high pore water concentration. |
| 资助项目 | Natural Sci- ence Foundation of China (NSFC)[51939011] ; Natural Sci- ence Foundation of China (NSFC)[41972290] ; Department of Science and Technol- ogy of Guangxi[AD20325010] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001238884000001 |
| 出版者 | CANADIAN SCIENCE PUBLISHING |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41612]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wei, Changfu |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 2.Beijing Jiaotong Univ, Sch Civil Engn, Beijing, Peoples R China 3.Guilin Univ Technol, Coll Civil Engn & Architecture, Guilin, Peoples R China 4.Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Zhaoyang,Ma, Tiantian,Liu, Yan,et al. An effective stress-based approach to modeling the chemo-mechanical behavior of saturated active clay[J]. CANADIAN GEOTECHNICAL JOURNAL,2024:16. |
| APA | Song, Zhaoyang,Ma, Tiantian,Liu, Yan,Cai, Guoqing,&Wei, Changfu.(2024).An effective stress-based approach to modeling the chemo-mechanical behavior of saturated active clay.CANADIAN GEOTECHNICAL JOURNAL,16. |
| MLA | Song, Zhaoyang,et al."An effective stress-based approach to modeling the chemo-mechanical behavior of saturated active clay".CANADIAN GEOTECHNICAL JOURNAL (2024):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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