Detection of ballastless track diseases in high-speed railway based on ground penetrating radar

被引：0
|
作者：
Liao H. [1 ]
Zhu Q. [1 ]
Zan Y. [2 ]
Xie Y. [1 ]
Sun J. [1 ]
机构：
[1] School of Human Settlement and Civil Engineering, Xi'an Jiaotong University, Xi'an
[2] School of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu
来源：
| 2016年 / Science Press卷 / 51期
关键词：
Ballastless track; Forward numerical simulation; Ground penetrating radar; High-speed railway; Roadbed disease; Traffic engineering;
D O I：
10.3969/j.issn.0258-2724.2016.01.002
中图分类号：
学科分类号：
摘要：
A two-dimensional forward simulation was conducted to analyze slab ballastless track diseases in high-speed railway using the ground penetrating radar (GPR) technique. Based on the finite difference method, a two-dimensional forward simulation equation for GPR was deduced. By considering the different filling degrees and hardening progress of CA mortar layer, GPR geoelectric models for CRTS II slab ballastless track were established and forward simulated, and the GPR picture features of the forward simulation were analyzed. The simulation results show that the forward simulation can clearly identify the interfaces between different dieletric layers and the number and location of reinforcement in slab ballastless track. © 2016, Editorial Department of Journal of Southwest Jiaotong University. All right reserved.
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页码：8 / 13
页数：5
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