- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | CHEN Rong, WANG Xuetong, MA Xiaonan, XU Jingmang, MA Qiantao, LÜ Tao, WANG Ping. Research on Evolution Mechanism of Longitudinal Creep in Ballasted Continuous Welded Rail Turnouts for Railways in Extreme Environments[J]. Journal of Southwest Jiaotong University, 2026, 61(3): 1021-1030. doi: 10.3969/j.issn.0258-2724.20260072
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To elucidate the evolution mechanism of longitudinal creep in ballasted continuous welded rail turnouts in extreme environments, based on time-series displacement data and resistance evolution characteristics, a refined analysis model for longitudinal creep of in-service ballasted continuous welded rail turnouts was established, with consideration of track resistance degradation effects. This model was developed through the analysis of resistance curve offsets, the decomposition of loading/unloading paths, and the search for the shortest equivalent path. The nonlinear longitudinal mechanical behavior of turnout rails and sleepers under extreme diurnal temperature cycles was elucidated for the first time, and the influence of updated fastening and ballast resistance parameters on residual stress and prediction results of cumulative creep displacement was assessed. The results indicate that cyclic loads with opposing directions and asymmetric amplitudes exacerbate longitudinal creep, with 15 extreme diurnal rail temperature cycles ranging from −50 ℃ to 10 ℃ resulting in a maximum residual rail deformation of 4.98 mm. Moreover, updating the parameters with a 20% degradation in both fastener and ballast resistance during the cycles causes the maximum residual rail deformation to increase to 5.48 mm, while the maximum residual stress of the nose rail grows by 20.24%.
| [1] |
王平, 刘学毅. 无缝道岔计算理论与设计方法[M]. 成都: 西南交通大学出版社, 2007.
|
| [2] |
罗华朋, 陈嵘, 宋姣姣, 等. 地震作用对有砟轨道桥上无缝道岔纵向受力与变形影响分析[J]. 铁道标准设计, 2018, 62(5): 30-36.
LUO Huapeng, CHEN Rong, SONG Jiaojiao, et al. Seismic impacts on longitudinal stress and distortion of welded turnout on bridge[J]. Railway Standard Design, 2018, 62(5): 30-36.
|
| [3] |
高原, 杨东升, 王树国. 铺设锁定轨温差对高原铁路无缝道岔受力特性的影响[J]. 西南交通大学学报, 2025, 60(3): 648-655.
GAO Yuan, YANG Dongsheng, WANG Shuguo. Influence of stress-free temperature difference on force characteristics of seamless turnouts in plateau areas[J]. Journal of Southwest Jiaotong University, 2025, 60(3): 648-655.
|
| [4] |
潘自立, 王树国, 谢毅, 等. 高原大日温差环境下跨区间无缝线路研究[J]. 铁道工程学报, 2023, 40(2): 12-17. doi: 10.3969/j.issn.1006-2106.2023.02.003
PAN Zili, WANG Shuguo, XIE Yi, et al. Research on the trans-section CWR in the large daily temperature difference environment of the plateau[J]. Journal of Railway Engineering Society, 2023, 40(2): 12-17. doi: 10.3969/j.issn.1006-2106.2023.02.003
|
| [5] |
蔡成标, 王其昌, 刘伟平, 等. 寒冷地区无缝道岔的理论与实践[J]. 铁道学报, 2003, 25(5): 88-91. doi: 10.3321/j.issn:1001-8360.2003.05.017
CAI Chengbiao, WANG Qichang, LIU Weiping, et al. Theory and practice of welded switches in chilly areas[J]. Journal of the China Railway Society, 2003, 25(5): 88-91. doi: 10.3321/j.issn:1001-8360.2003.05.017
|
| [6] |
ZENG Z P, HU J, TIAN C Y, et al. Research on the longitudinal mechanical behaviours of subway turnouts of large slope under train braking force[J]. Science Progress, 2021, 104(2): 00368504211028369.
|
| [7] |
WANG X T, CHEN Y, CHEN R, et al. A dynamic analysis model for high-altitude steep slope jointless turnouts under the coupling effect of extreme temperature and actual vehicle load[J]. Vehicle System Dynamics, 2025: 1-25.
|
| [8] |
蔡小培, 高梓航, 张乾, 等. 温度历程对斜拉桥上无缝线路纵向力的影响[J]. 铁道工程学报, 2023, 40(7): 20-26. doi: 10.3969/j.issn.1006-2106.2023.07.004
CAI Xiaopei, GAO Zihang, ZHANG Qian, et al. Influence of temperature loading process on longitudinal force of CWR on cable-stayed bridges[J]. Journal of Railway Engineering Society, 2023, 40(7): 20-26. doi: 10.3969/j.issn.1006-2106.2023.07.004
|
| [9] |
MA Q T, WANG K, WANG X, et al. Numerical and experimental investigation of longitudinal rail creep at turnouts on steep ramps under repeated loads considering realistic braking loads of vehicles[J]. Engineering Failure Analysis, 2023, 151: 107380. doi: 10.1016/j.engfailanal.2023.107380
|
| [10] |
LUO J, ZHU S Y, ZENG Z P, et al. On stress and deformation accumulation of continuously welded rails under cyclic thermal loading in high-speed railways[J]. Engineering Structures, 2023, 275: 115225. doi: 10.1016/j.engstruct.2022.115225
|
| [11] |
张向民, 陈秀方, 曾志平. 青藏铁路弹条Ⅱ型扣件系统低温阻力特性试验研究[J]. 铁道科学与工程学报, 2007, 4(2): 72-75. doi: 10.3969/j.issn.1672-7029.2007.02.015
ZHANG Xiangmin, CHEN Xiufang, ZENG Zhiping. Experimental investigation on resistance performance of spring Ⅱ type fastening systems under low temperature in Qinghai-Tibet railway[J]. Journal of Railway Science and Engineering, 2007, 4(2): 72-75. doi: 10.3969/j.issn.1672-7029.2007.02.015
|
| [12] |
ALIZADEH M, IMANI M, ALI ZAKERI J. Laboratory and numerical investigation on the longitudinal resistance of ballasted railway tracks with steel sleepers[J]. Construction and Building Materials, 2023, 402: 132670. doi: 10.1016/j.conbuildmat.2023.132670
|
| [13] |
郭成满, 杨荣山. WJ-8型小阻力扣件轨下胶垫滑出纵向阻力试验研究[J]. 铁道科学与工程学报, 2015, 12(4): 749-754. doi: 10.19713/j.cnki.43-1423/u.2015.04.006
GUO Chengman, YANG Rongshan. Experiment of longitudinal resistance of WJ-8 type s mall resistance fastener with the sliding of rubber pad[J]. Journal of Railway Science and Engineering, 2015, 12(4): 749-754. doi: 10.19713/j.cnki.43-1423/u.2015.04.006
|
| [14] |
LIU X, HE T Q, JIANG L Z, et al. Experimental study on deformation and mechanical properties of high-speed railway fasteners under longitudinal reciprocating load[J]. Construction and Building Materials, 2025, 466: 140292. doi: 10.1016/j.conbuildmat.2025.140292
|
| [15] |
刘浩. 铁路有砟道床阻力演变机制及其对无缝线路影响研究[D]. 成都: 西南交通大学, 2019.
|
| [16] |
王斌, 陈嵘, 王平. 道床纵向阻力变化对无缝道岔受力与变形的影响[J]. 铁道建筑, 2010, 50(5): 102-104. doi: 10.3969/j.issn.1003-1995.2010.05.032
WANG Bin, CHEN Rong, WANG Ping. Influence of longitudinal resistance change of ballast bed on stress and deformation of seamless turnout[J]. Railway Engineering, 2010, 50(5): 102-104. doi: 10.3969/j.issn.1003-1995.2010.05.032
|
| [17] |
马卓然, 高亮. 高速铁路桥上无缝道岔结构力学状态预测方法[J]. 铁道学报, 2022, 44(2): 90-96. doi: 10.3969/j.issn.1001-8360.2022.02.012
MA Zhuoran, GAO Liang. Prediction of structural mechanical state of continuously welded turnout on high-speed railway bridge[J]. Journal of the China Railway Society, 2022, 44(2): 90-96. doi: 10.3969/j.issn.1001-8360.2022.02.012
|
| [18] |
ENSHAEIAN A, BELDING M, RIZZO P. Stress evaluation in rails based on vibration data and artificial intelligence[J]. Transportation Research Record: Journal of the Transportation Research Board, 2023, 2677(8): 705-720. doi: 10.1177/03611981231157726
|
| [19] |
NI Y J, MA Y P, LIN H W, et al. Finite element model updating of existing bridge structures based on measured data and deep learning method[J]. Structures, 2025, 79: 109403. doi: 10.1016/j.istruc.2025.109403
|
| [20] |
LUO L X, SONG M M, ZHONG H Q, et al. Hierarchical Bayesian model updating of a long-span arch bridge considering temperature and traffic loads[J]. Mechanical Systems and Signal Processing, 2024, 210: 111152. doi: 10.1016/j.ymssp.2024.111152
|
| [21] |
周陈一. 基于数字孪生的高铁桥上无缝道岔系统服役状态评估方法[D]. 北京: 北京交通大学, 2023.
|
| [22] |
NEJAD R M, LIU Z L, MA W C, et al. Fatigue reliability assessment of a pearlitic Grade 900A rail steel subjected to multiple cracks[J]. Engineering Failure Analysis, 2021, 128: 105625. doi: 10.1016/j.engfailanal.2021.105625
|
| [23] |
LI Z W, LIU X Z, CHEN S X. A reliability assessment approach for slab track structure based on vehicle-track dynamics and surrogate model[J]. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 2022, 236(1): 79-89. doi: 10.1177/1748006X211028405
|
| [24] |
谷爱军, 范俊杰, 姜卫利. 无缝道岔现场测试分析[J]. 北方交通大学学报, 2001, 25(1): 47-50. doi: 10.3969/j.issn.1003-1995.2006.04.028
GU Aijun, FAN Junjie, JIANG Weili. In site testing of continuous welded turnout[J]. Journal of Northern Jiaotong University, 2001, 25(1): 47-50. doi: 10.3969/j.issn.1003-1995.2006.04.028
|
| [25] |
林红松, 颜华, 刘浩. 川藏铁路跨区间无缝线路适应性分析[C]//“川藏铁路建设的挑战与对策”2016学术交流会论文集. 成都: 中铁二院工程有限责任公司, 2016: 511-516.
|
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