Unraveling engineering disturbance effects on deformation in red-bed mudstone railway cuttings: incorporating crack-facilitated moisture diffusion
文献类型：期刊论文
| 作者 | Huang, Rang1,5; Dai, Zhangjun5; Yan, Chengzeng3,4; Yao, Junkai2; Chi, Zecheng4,5; Chen, Shanxiong5 |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 21期号:5页码:1663-1682 |
| 关键词 | Red-bed mudstone Railway cutting FDEM Moisture diffusion Deformation Crack |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-023-8561-0 |
| 英文摘要 | Red-bed mudstone, prevalent in southwest China, poses a formidable challenge due to its hydrophilic clay minerals, resulting in expansion, deformation, and cracking upon exposure to moisture. This study addresses uplift deformation disasters in high-speed railways by employing a moisture diffusion-deformation-fracture coupling model based on the finite-discrete element method (FDEM). The model integrates the influence of cracks on moisture diffusion. The investigation into various excavation depths reveals a direct correlation between depth and the formation of tensile cracks at the bottom of the railway cutting. These cracks expedite moisture migration, significantly impacting the temporal and spatial evolution of the moisture field. Additionally, crack expansion dominates hygroscopic deformation, with the lateral coordinate of the crack zone determining peak vertical displacement. Furthermore, key factors influencing deformation in railway cuttings, including the swelling factor and initial moisture content at the bottom of the cutting, are explored. The number of tensile and shear cracks increases with greater excavation depth, particularly concerning shear cracks. Higher swelling factors and initial moisture contents result in an increased total number of cracks, predominantly shear cracks. Numerical calculations provide valuable insights, offering a scientific foundation and directional guidance for the precise prevention, control, prediction, and comprehensive treatment of mudstone-related issues in high-speed railways. |
| 资助项目 | National Natural Science Foundation of China[42172308] ; National Natural Science Foundation of China[51779018] ; Youth Innovation Promotion Association CAS[2022331] ; Science and Technology Research and Development Program of China State Railway Group Co., Ltd.[J2022G002] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001245050300015 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41686]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Dai, Zhangjun |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.China Acad Railway Sci Corp Ltd, Beijing 100081, Peoples R China 3.China Univ Geosci, Int Joint Res Ctr Deep Earth Drilling & Resource D, Wuhan 430074, Peoples R China 4.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Rang,Dai, Zhangjun,Yan, Chengzeng,et al. Unraveling engineering disturbance effects on deformation in red-bed mudstone railway cuttings: incorporating crack-facilitated moisture diffusion[J]. JOURNAL OF MOUNTAIN SCIENCE,2024,21(5):1663-1682. |
| APA | Huang, Rang,Dai, Zhangjun,Yan, Chengzeng,Yao, Junkai,Chi, Zecheng,&Chen, Shanxiong.(2024).Unraveling engineering disturbance effects on deformation in red-bed mudstone railway cuttings: incorporating crack-facilitated moisture diffusion.JOURNAL OF MOUNTAIN SCIENCE,21(5),1663-1682. |
| MLA | Huang, Rang,et al."Unraveling engineering disturbance effects on deformation in red-bed mudstone railway cuttings: incorporating crack-facilitated moisture diffusion".JOURNAL OF MOUNTAIN SCIENCE 21.5(2024):1663-1682. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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