Monitoring of change of real locked temperature of continuous welded rail by strain electrical measuring method

ZHANG Hai; LIU Chong; WANG Da-zhi; ZHANG Zhi-xin; REN Tong-qun; LIANG Jun-sheng

doi:10.13873/J.1000-9787(2014)11-0062-03

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Monitoring of change of real locked temperature of continuous welded rail by strain electrical measuring method

更新时间：2025-09-11

- Monitoring of change of real locked temperature of continuous welded rail by strain electrical measuring method
- Vol. 33, Issue 11, Pages: 62-64+81(2014)
- 作者机构：
  
  1. 大连理工大学辽宁省微纳米技术及系统重点实验室
  2. 大连理工大学精密与特种加工教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2014)11-0062-03
  CLC： U213.9;U216.3
- Published：2014
- 稿件说明：
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[1]张海,刘冲,王大志,张志新,任同群,梁军生.应变电测法监测无缝线路实际锁定轨温的变化[J].传感器与微系统,2014,33(11):62-64+81.

ZHANG Hai, LIU Chong, WANG Da-zhi, et al. Monitoring of change of real locked temperature of continuous welded rail by strain electrical measuring method[J]. 2014, 33(11): 62-64+81.
[1]张海,刘冲,王大志,张志新,任同群,梁军生.应变电测法监测无缝线路实际锁定轨温的变化[J].传感器与微系统,2014,33(11):62-64+81. DOI： 10.13873/J.1000-9787(2014)11-0062-03.

ZHANG Hai, LIU Chong, WANG Da-zhi, et al. Monitoring of change of real locked temperature of continuous welded rail by strain electrical measuring method[J]. 2014, 33(11): 62-64+81. DOI： 10.13873/J.1000-9787(2014)11-0062-03.

摘要

实际锁定轨温是铁路部门衡量无缝线路钢轨应力状态的标准和轨道安全性的重要指标。采用应变电测法监测实际锁定轨温的变化

通过无线传感器网络的方式采集和传输数据

在1500m长的无缝线路段进行了一个月的在线监测试验

解算出了不同区段实际锁定轨温的变化

其中道岔区附近起点处较大（±10℃左右）

远离道岔区的轨道段变化较小（过渡段为±5℃以内;有砟轨道段为±3℃以内）。经分析和试验验证:应变电测法能够满足铁路部门对该无缝线路段长期在线安全监测的技术要求。

Abstract

Locked temperature is standard to evaluate railway stress and safety of railway. Strain electrical measuring method is used to monitor fluctuation of the locked temperature

and wireless sensor networks（ WSNs）is employed for data acquisition and transmission on-line monitoring test is carried out on 1500 meters-long continuous welded rail section for a month. During the test

the range of locked temperature fluctuation is calculated and compared. The fluctuation is large at the starting point near turnout area which is about ± 10 ℃ at the transition section it is small

which is about ± 5 ℃ and no more than ± 3 ℃ at the ballast section

respectively.The experiment result shows that the strain electrical measuring method meets the requirement for long-term and on-line safety monitoring for continuous welded rail.

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references

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75 kg/m可动心轨无缝道岔实际锁定轨温的测算 [J]. 赵海军. 山西建筑 . 2011(21)

浅谈无缝线路实际锁定轨温的监测方法 [J]. 刘见见. 上海铁道科技 . 2009(02)

测标测量无缝线路锁定轨温方法在新线的应用 [J]. 闫进学. 铁道勘察 . 2007(06)

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应变—温度法监测钢轨无缝线路锁定轨温的误差分析及改进 [D]. 张富生. 大连理工大学 2013

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