Semianalytical Solution for Dynamic Responses of Railway Track System on Unsaturated Poroelastic Half-Space Subjected to Moving Trainload
文献类型：期刊论文
| 作者 | Tang, Chuxuan1,2; Lu, Zheng1,3; Yao, Hailin1; Guo, Shuan4; Huang, Xiangqun4; Liu, Jie1 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 21期号:3页码:10 |
| 关键词 | Unsaturated ground Dynamic response Fourier transform Moving trainload Railway track |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001955 |
| 英文摘要 | A track-unsaturated ground model was proposed to study the dynamic responses of the unsaturated subgrade induced by moving trainloads. The subgrade was modeled by an unsaturated poroelastic half-space, and the railway track system comprises a rail, sleepers, and ballast. The double Fourier transform was applied to solve the governing equations of the entire system in the frequency domain. The semianalytical results in the time domain were further obtained using the fast inverse Fourier transform. The effects of saturation, train speeds, and intrinsic permeability of soil on the dynamic responses were studied in both the time and frequency domain. It was found that the effects of saturation and train speed on the responses of displacement, acceleration, and pore-water pressure are significant. For low saturation, the vertical displacement response of unsaturated half-space is similar to that of the elastic half-space, and the intrinsic permeability has little effect. While for high saturation, the amplitude of vertical displacement increases with the increase of intrinsic permeability of the soil. (c) 2021 American Society of Civil Engineers. |
| 资助项目 | Outstanding Youth Foundation of Hubei Province[2017CFA056] ; National Natural Science Foundation of China[41672312] ; National Natural Science Foundation of China[41972294] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000613513400017 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25676]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Lu, Zheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 4.Hunan Commun Res Inst Co Ltd, Changsha 410015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Chuxuan,Lu, Zheng,Yao, Hailin,et al. Semianalytical Solution for Dynamic Responses of Railway Track System on Unsaturated Poroelastic Half-Space Subjected to Moving Trainload[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2021,21(3):10. |
| APA | Tang, Chuxuan,Lu, Zheng,Yao, Hailin,Guo, Shuan,Huang, Xiangqun,&Liu, Jie.(2021).Semianalytical Solution for Dynamic Responses of Railway Track System on Unsaturated Poroelastic Half-Space Subjected to Moving Trainload.INTERNATIONAL JOURNAL OF GEOMECHANICS,21(3),10. |
| MLA | Tang, Chuxuan,et al."Semianalytical Solution for Dynamic Responses of Railway Track System on Unsaturated Poroelastic Half-Space Subjected to Moving Trainload".INTERNATIONAL JOURNAL OF GEOMECHANICS 21.3(2021):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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