Shear properties of unsaturated red mudstone fill material over a wide range of suction
文献类型：期刊论文
| 作者 | Ma, Jie5,6; Liu, Xianfeng5,6; Yuan, Shengyang5,6; Xu, Jiahang4,5; Hu, Ren5,6; Wanatowski, Dariusz3,4; Dai, Zhangjun2; Chen, Xiaobin1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2025-05-09 |
| 卷号 | 474页码:11 |
| 关键词 | Red mudstone fill material Unsaturated soil Shear strength Microstructure Strength prediction |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2025.141122 |
| 英文摘要 | Red mudstone fill material for high-speed railway subgrade is naturally in unsaturated state, while the water content varies significantly due to environmental influence, which could lead to subgrade settlement or even failure. This study aims at investigating the suction effect on the shear strength of red mudstone fill material, and proposes its unsaturated strength prediction formula over a wide range of suction. Results show that the cohesion exhibit typical "peak effect", initially increasing and then decreasing, while the internal friction angle gradually decreases with increasing degree of saturation. Moreover, the significant decrease in shear strength of red mudstone fill material at saturated state is mainly caused by the significant reduction in cohesion. In terms of the microscale investigation, the pore size distribution of the red mudstone fill material transforms from monomodal to bimodal with the water content increases, and then back to monomodal distribution under saturated state. Informed by integrative insights from macro to micro-scale experimental findings, a strength prediction formula for unsaturated red mudstone fill material over a wide range of suction was established, considering the effective degree of saturation and the significant change of internal friction angle. The strength prediction formula of unsaturated red mudstone fill material can provide a theoretical basis for evaluating the performance of subgrades across a broad range of suction, thereby advancing the resource utilization of red mudstone waste in highspeed railway construction. |
| 资助项目 | Natural Science Foundation of China[52078432] ; Natural Science Foundation of China[52168066] ; Natural Science Foundation of China[52378463] ; Natural Science Foundation of China[52478475] ; National Key R&D Program of China[2023YFB2604001] ; China Academy of Railway Science Group Co., LTD Project[2023YJ377] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001462986800001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36302]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Xianfeng |
| 作者单位 | 1.Cent South Univ, Sch Civil Engn, Changsha, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan, Hubei, Peoples R China 3.Univ Leeds, Fac Engn & Phys Sci, Leeds LS2 9JT, England 4.Southwest Jiaotong Univ, SWJTU LEEDS Joint Sch, Chengdu, Sichuan, Peoples R China 5.Southwest Jiaotong Univ, Key Lab High Speed Railway Engn, Minist Educ, Chengdu, Sichuan, Peoples R China 6.Southwest Jiaotong Univ, Sch Civil Engn, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Jie,Liu, Xianfeng,Yuan, Shengyang,et al. Shear properties of unsaturated red mudstone fill material over a wide range of suction[J]. CONSTRUCTION AND BUILDING MATERIALS,2025,474:11. |
| APA | Ma, Jie.,Liu, Xianfeng.,Yuan, Shengyang.,Xu, Jiahang.,Hu, Ren.,...&Chen, Xiaobin.(2025).Shear properties of unsaturated red mudstone fill material over a wide range of suction.CONSTRUCTION AND BUILDING MATERIALS,474,11. |
| MLA | Ma, Jie,et al."Shear properties of unsaturated red mudstone fill material over a wide range of suction".CONSTRUCTION AND BUILDING MATERIALS 474(2025):11. |
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。