Numerical Simulation Study on Frost Heave Characteristics of Railway Road and Bridge Transition Section in Alpine Seasonal Permafrost Region

被引：1
|
作者：
Dong L. [1 ]
Wu Y. [2 ,3 ]
Zou J. [2 ,3 ]
Han X. [2 ,3 ]
Su Y. [1 ]
机构：
[1] Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing
[2] School of Civil Engineering, Harbin Institute of Technology, Heilongjiang, Harbin
[3] Heilongjiang Research Center for Rail Transit Engineering in Cold Regions, Heilongjiang, Harbin
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2024年 / 45卷 / 01期
关键词：
Alpine seasonal frozen soil area; Frost heave deformation; Numerical simulation; Railway; Railway road and bridge transition section; Seasonal frozen soil; Thermal-mechanical coupling;
D O I：
10.3969/j.issn.1001-4632.2024.01.07
中图分类号：
学科分类号：
摘要：
The railway road and bridge transition section is a vital part of a whole railway line, and it is also a relatively weak part; the frost heave of the railway road and bridge transition section in the alpine seasonal frozen soil area causes the deformation and displacement of the pier girder body, which has a great impact on the smoothness of the line. In order to solve the frost heave problem of railway road and bridge transition section in alpine seasonal frozen soil area, based on the thermodynamic coupling theory, ABAQUS software was used to establish a numerical model of railway road and bridge transition section, analyze the development and variation laws of temperature field and soil fill in the transition section, and explore the bridge-abutment-fill interaction caused by frost heave behind the abutment. The results show that the thermodynamic properties of the material and the temperature boundary of the abutment are the main factors affecting the equilibrium process and distribution law of the temperature field, and the influence is gradually weakened with the increase of distance from the abutment. The soil temperature in the transition section shows sinusoidal distribution, phase lag and amplitude attenuation law. With the development of horizontal frost heave deformation of the fill, the abutment gradually shifts and tilts, which leads to the tightening of the bridge and the abutment, thus affecting the safety of the bridge structure. © 2024 Chinese Academy of Railway Sciences. All rights reserved.
引用
收藏
页码：68 / 78
页数：10
相关论文
共 31 条
  • [1] PENNER E., Pressures Developed during the Unidirectional Freezing of Water-Saturated Porous Materials：Experiment and Theory[J], Physics of Snow and Ice：Proceedings, 1, 2, pp. 1401-1414, (1967)
  • [2] WILLIAMS P., Properties and Behaviour of Freezing Soils (Technology Report 72), (1967)
  • [3] MILLER R., Freezing and Heaving of Saturated and Unsaturated Soils[J], Highway Research Record, 393, 1, pp. 1-11, (1972)
  • [4] HUANG X M., Determination of the Critical Height of Railway Embankment in Permafrost Regions on Qinghai-Tibet Plateau[C], Proceeding of Second National Conference on Permafrost(Selection), pp. 391-397, (1983)
  • [5] ZHANG M, ZHANG J, LAI Y., Numerical Analysis for Critical Height of Railway Embankment in Permafrost Regions of Qinghai-Tibet Plateau[J], Cold Regions Science and Technology, 41, 2, pp. 111-120, (2005)
  • [6] LIU M, LI G, NIU F, Et al., Porosity of Crushed Rock Layer and Its Impact on Thermal Regime of Qinghai-Tibet Railway Embankment[J], Journal of Central South University, 24, 4, pp. 977-987, (2017)
  • [7] HOU X, CHEN J, JIN H, Et al., Thermal Characteristics of Cast-in-Place Pile Foundations in Warm Permafrost at Beiluhe on Interior Qinghai-Tibet Plateau：Field Observations and Numerical Simulations[J], Soils and Foundations, 60, 1, pp. 90-102, (2020)
  • [8] ZHANG X, WU Y, ZHAI E, Et al., Coupling Analysis of the Heat-Water Dynamics and Frozen Depth in a Seasonally Frozen Zone[J], Journal of Hydrology, 593, (2021)
  • [9] LI A, NIU F, ZHENG H, Et al., Experimental Measurement and Numerical Simulation of Frost Heave in Saturated Coarse-Grained Soil[J], Cold Regions Science and Technology, 137, pp. 68-74, (2017)
  • [10] YANG P, KE J, WANG J G, Et al., Numerical Simulation of Frost Heave with Coupled Water Freezing, Temperature and Stress Fields in Tunnel Excavation[J], Computers and Geotechnics, 33, 6, pp. 330-340, (2006)
1234