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The stress superposition effect in the midline area of the multi-wheeled vehicles produced by moving vehicles load is generally ignored, which leads to smaller results in research of subgrade service depth. Based on the elastic mechanics theory, the analytical solution of subgrade dynamic response under moving vehicles load is derived with compound elastic layers. The characteristics of subgrade dynamic stress distribution under the action of moving vehicles are analyzed by using Midas Gts Nx numerical simulation software, and the influence of static and dynamic axle load on the subgrade service depth is compared. The results demonstrate that the subgrade dynamic stress in the under-wheel area attenuates rapidly along the depth direction, while the subgrade dynamic stress in the midline area increases at first and subsequently decreases along the same direction. With the increase of subgrade dynamic stress, the shape of dynamic stress isosurface changes from bimodal to unimodal. Whether in the form of static or dynamic axle load, the subgrade service depth in the middle line area is larger than that in under-wheel area, and the influence of dynamic axle load on the subgrade service depth is greater than that of static axle load. The wheel distance and vehicle velocity have a significant influence on the subgrade service depth. With the increase of vehicle velocity, the subgrade service depth decreases. With the increase of wheel distance, the subgrade service depth decreases.
Czasopismo
Rocznik
Tom
Strony
483--499
Opis fizyczny
Bibliogr. 19 poz., il., tab.
Twórcy
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, China
Bibliografia
- [1] Wang Chang-Jing, Study on the dynamic stress in ground induced by train moving load and cyclic properties of soft saturated clay. Zhejiang University, 2006.
- [2] Liu Da-Peng, Study on the Engineering Properties of Aeolian Sand and Gravel Soil Low Embankment Under Vehicle Load. Chang’an University, 2015.
- [3] Y. Momoya, E. Sekine, F. Tatsuoka, “Deformation characteristics of railway roadbed and subgrade under moving-wheel load”, Soils and Foundations, 2005, vol. 45, no. 4, pp. 99-118, DOI: 10.3208/sandf.45.4_99.
- [4] Lu Zheng, Wang Chang-Bo, Fu Jian-Jun, et al., “Research on influence depth of road subgrade induced by vehicle loads”, Rock and Soil Mechanics, 2013, vol. 34, no. 02, pp. 316-321¸352, DOI: 10.16285/j.rsm.2013.02.030.
- [5] X. Ma, Analytical solutions and monitoring methodology for mechanical responses of asphalt pavement subjected to random loads. Harbin Institute of Technology, 2019.
- [6] Z. Dong, X. Ma, “Analytical solutions of asphalt pavement responses under moving loads with arbitrary non-uniform tire contact pressure and irregular tire imprint”, Road Materials & Pavement Design, 2017, vol. 19, no. 8, pp. 1-17, DOI: 10.1080/14680629.2017.1354776.
- [7] W. Liu, H. Mei, W. Leng, et al., “Numerical Analysis of Dynamic Stress Response Characteristics of Subgrade Bed”, Journal of the China Railway Society, 2017, vol. 39, no. 12, pp. 108-117, DOI: 10.3969/j.issn.1001-8360.2017.12.015.
- [8] F. Xu, Q. Yang, W. Leng, et al., “Dynamic Stress of Subgrade Bed Layers Subjected to Train Vehicles with Large Axle Loads”, Shock and Vibration, 2018, vol. 2018, pp. 1-12, DOI: 10.1155/2018/2916096.
- [9] M. Liu, W. Peng, Y. Gao, “Analytical solution of the dynamic stress of elastic multi-layered medium under moving strip load”, China Civil Engineering Journal, 2010, vol. 43, no. 3, pp. 81-87, DOI: 10.15951/j.tmgcxb.2010.03.002.
- [10] Z. Yang, G. Cheng, “Quantitative analysis of influencing factors of subgrade service depth of civil airport runway”, Chinese Journal of Geotechnical Engineering, 2016, vol. 38, pp. 130-135, DOI: 10.11779/CJGE2016S2021.
- [11] C. Qu, K. Kang, L. Wei, et al., “Research on dynamic response characteristics and long-term dynamic stability of subgrade-culvert transition zone in high-speed railway”, Rock and Soil Mechanics, 2020, vol. 41, no. 10, pp. 1-11, DOI: 10.16285/j.rsm.2020.0079.
- [12] Y. Shang, L. Xu, Y. Cai, “Study on Dynamic Features of Cement-Stabilized Expansive Soil Subgrade of Heavy Haul Railway under Soaking Environment”, Rock and Soil Mechanics, 2020, vol. 41, no. 8, pp. 1-8, DOI: 10.16285/j.rsm.2019.1467.
- [13] K. Wang, Y. Zhuang, X. Gen, “Experimental study on critical dynamic stress of coarse-grained soil in railway subgrade”, Rock and Soil Mechanics, 2020, vol. 41, no. 6, pp. 1865-1873, DOI: 10.16285/j.rsm.2019.1511.
- [14] X. Yang, Q. Wan, D. Liu, et al., “Dynamic characteristics of gravel soil low embankment in Xinjiang”, Journal of Traffic and Transportation Engineering, 2019, vol. 19, no. 3, pp. 1-9, DOI: 10.19818/j.cnki.1671-1637.2019.03.001.
- [15] Y. Zhao, Z. Wang, G. Wang, et al., “Stress pulse durations in asphalt pavement under moving load”, Journal of Traffic and Transportation Engineering, 2009, vol. 9, no. 6, pp. 11-15, DOI: 10.19818/j.cnki.1671-1637.2009.06.003.
- [16] Z. Lu, H. Yao, W. Wu, et al., “Structural analysis and design method of dynamic deformation of expressway subgrade”, Rock and Soil Mechanics, 2010, vol. 31, no. 9; pp. 2907-2912, DOI: 10.16285/j.rsm.2010.09.013.
- [17] L. An, F. Zhang, Y. Geng, et al., “Field Measurement of Dynamic Compressive Stress Response of Pavement-Subgrade Induced by Moving Heavy-Duty Trucks”, Shock and Vibration, 2018, vol. 2018, pp. 1-12, DOI: 10.1155/2018/1956906.
- [18] G. Liao, X. Huang, Application of ABAQUS finite element Software in Road Engineering. Southeast University Press, 2008.
- [19] H. Fu, J. Liu, L. Zhang, et al., “Dynamic stability analysis for rock slope based on orthogonal test”, Journal of Central South University (Science and Technology), 2011, vol. 42, no. 9, pp. 2853-2859.
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fbf06352-ff00-489c-aa7f-7b00c804a904