Evolution of the mechanical properties of loess in an acidic water environment: mechanism analysis and prediction using a chemical constitutive model
文献类型：期刊论文
| 作者 | Zhang, Yao1,3,4; Guo, Shaoqiang4; Hu, Zaiqiang1; Li, Ning1; Fu, Shaojun4; Shao, Shuai5; Xue, Zhijia2 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 81期号:12页码:- |
| ISSN号 | 1435-9529 |
| 关键词 | Acidic water environment Binary-medium constitutive model Bonded elements Weakened elements |
| 英文摘要 | The properties of soil masses are critically influenced by chemical factors in the surrounding environment. To investigate the changes in the properties of loess upon its exposure to an acidic water environment, oedometer and triaxial tests were conducted on loess specimens that were previously submerged in solutions with various pH values. The oedometer results indicate that the collapsibility (I-c) values of the specimens saturated with acidic solutions (LTA) were generally higher than those of the specimens saturated with distilled water (LTW). The triaxial test results confirmed that the shear strengths of the LTA specimens were higher than those of the LTW samples. An improved binary-medium constitutive model was then proposed to predict the stress-strain relationship of loess in an acidic water environment. The loess was regarded as a composite material that comprises bonded and weakened elements, which are related through interlacing and reciprocal transformations. A series of mathematical expressions were derived to describe the changes in the stress-strain relationships of the bonded and weakened elements. Finally, the test results were compared with those obtained from the model, which demonstrated that the model accurately predicted loess deformation in an acidic water environment. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000890291200001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35372]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Institute of Water Resources and Hydro-Electric Engineering, Xi’an University of Technology, Xi’an 710048, China 2.School of Highway, Chang’an University, Xi’an 710064, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, China 5.School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China |
| 推荐引用方式 GB/T 7714 | Zhang, Yao,Guo, Shaoqiang,Hu, Zaiqiang,et al. Evolution of the mechanical properties of loess in an acidic water environment: mechanism analysis and prediction using a chemical constitutive model[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(12):-. |
| APA | Zhang, Yao.,Guo, Shaoqiang.,Hu, Zaiqiang.,Li, Ning.,Fu, Shaojun.,...&Xue, Zhijia.(2022).Evolution of the mechanical properties of loess in an acidic water environment: mechanism analysis and prediction using a chemical constitutive model.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(12),-. |
| MLA | Zhang, Yao,et al."Evolution of the mechanical properties of loess in an acidic water environment: mechanism analysis and prediction using a chemical constitutive model".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.12(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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