A novel binary-medium breakage model for loess in an acidic aqueous environment
文献类型：期刊论文
| 作者 | Zhang, Yao1,2,4; Chen, Chenghao1; Gao, Shuaifeng1; Guo, Shaoqiang1; Li, Ning3; Hu, Zaiqiang3; Yang, Shasha1 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 82期号:6页码:- |
| 关键词 | Breakage mechanics Energy equation Calcareous bond Structural body Weak zone |
| ISSN号 | 1435-9529 |
| 英文摘要 | The basic concepts of the breakage mechanics of rocks and soils are briefly introduced in this article. The underlying mechanism for the breakage evolution of loess in a natural acidic environment is detailed, and a method is presented for calculating the rate of reaction between the calcium carbonate (CaCO3, an insoluble salt) in loess and acid. A breakage variable that accounts for the effects of chemical factors is derived from energy equations and macroscopic and microscopic energy balance principles. The existing binary-medium model for loess is improved, considering the breakage mechanism for loess in an acidic environment and the rate at which calcareous bonds react with acid. In the improved model, loess is treated as a combination of structural bodies and weak zones that withstand changes in external stresses (hydrological, mechanical, and acidic). Simple mathematical expressions are used to represent the breakage patterns and characteristics of the structural bodies and weak zones in loess in an acidic environment. Each parameter in the model has a clear physical meaning and can be determined through laboratory testing. The model was validated by comparing the calculated results against the results of collapsibility and consolidated-drained triaxial tests on a loess sample in an acidic environment. The results show that the model can accurately simulate the deformation characteristics of loess in an acidic environment and serve as a reference for engineering construction on loess foundations under the influence of acidic wastewater and acid rain. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000989735800001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35180]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, Shaanxi, China 2.School of Water Resources and Hydroelectric Engineering, Xi’an University of Technology, Xi’an 710048, Shaanxi, China 3.Institute of Water Resources and Hydro-Electric Engineering, Xi’an University of Technology, Xi’an 710048, China 4.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China |
| 推荐引用方式 GB/T 7714 | Zhang, Yao,Chen, Chenghao,Gao, Shuaifeng,et al. A novel binary-medium breakage model for loess in an acidic aqueous environment[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2023,82(6):-. |
| APA | Zhang, Yao.,Chen, Chenghao.,Gao, Shuaifeng.,Guo, Shaoqiang.,Li, Ning.,...&Yang, Shasha.(2023).A novel binary-medium breakage model for loess in an acidic aqueous environment.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,82(6),-. |
| MLA | Zhang, Yao,et al."A novel binary-medium breakage model for loess in an acidic aqueous environment".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 82.6(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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