Analysis of the shear failure between track slab and CA mortar layer caused by thermal effect for ballastless track
文献类型：期刊论文
| 作者 | Zhang, Tao4,5; Zhang, Zheyuan4,5; Tian, Hongming4,5; Lu, Chen4,5; Wang, Wei3; Song, Wanxin2; Liu, Xialin1 |
| 刊名 | CASE STUDIES IN CONSTRUCTION MATERIALS
 |
| 出版日期 | 2025-07-01 |
| 卷号 | 22页码:16 |
| 关键词 | Ballastless track CA mortar Constitutive model Damage analysis |
| ISSN号 | 2214-5095 |
| DOI | 10.1016/j.cscm.2025.e04266 |
| 英文摘要 | Shear failure between track slab and CA mortar layer in the ballastless track induced by extreme temperature conditions threaten the operation safety of high-speed trains. The shear failure is closely related to the thermal damage of CA mortar. Series of compression tests under different temperature were conducted on CA mortar to investigate degradation of mechanical characteristic of the CA mortar induced by temperature. The tests results indicated that both elastic modulus and peak stress of the CA mortar decreased linearly with increasing temperature. An damage model was proposed to accurately describe the degradation of mechanical characteristic of the CA mortar. Furthermore, the proposed model was used to investigate the shear failure between track slab and CA mortar layer induced by extreme temperature conditions. The results indicate that the thermal damage to CA mortar can cause clear increase of the shear stress between CA mortar layer and track slab. The shear failure between CA mortar layer and track slab is most likely to occur under overall temperature rise combined with negative temperature gradient, which often occurs during cool summer nights in mid-latitude areas in China. |
| 资助项目 | National Natural Science Foundation of China[52179113] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering Safety[SKLGME022022] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering Safety[SKLGMEJBGS2401] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001409922000001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37632]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tian, Hongming |
| 作者单位 | 1.Second Highway Consultants Co Ltd, China Commun Construct Co, Wuhan 430056, Peoples R China 2.China Univ Min & Technol, China State Key Lab Coal Resources & Mine Safety, Xuzhou 221116, Jiangsu, Peoples R China 3.Guangdong Res Inst Water Resources & Hydropower, Guangzhou 510610, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Tao,Zhang, Zheyuan,Tian, Hongming,et al. Analysis of the shear failure between track slab and CA mortar layer caused by thermal effect for ballastless track[J]. CASE STUDIES IN CONSTRUCTION MATERIALS,2025,22:16. |
| APA | Zhang, Tao.,Zhang, Zheyuan.,Tian, Hongming.,Lu, Chen.,Wang, Wei.,...&Liu, Xialin.(2025).Analysis of the shear failure between track slab and CA mortar layer caused by thermal effect for ballastless track.CASE STUDIES IN CONSTRUCTION MATERIALS,22,16. |
| MLA | Zhang, Tao,et al."Analysis of the shear failure between track slab and CA mortar layer caused by thermal effect for ballastless track".CASE STUDIES IN CONSTRUCTION MATERIALS 22(2025):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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