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Railroad bridge top beam detection system and method

A bridge and top beam technology, applied in the field of railway bridge top beam detection system, can solve problems such as rail fracture, railway outage, lifting height, and rail stress increase

Active Publication Date: 2020-10-27
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the above process is carried out, it is easy to cause the uncontrollable increase of the lifting height and the stress of the rail, causing the problem of rail fracture and causing accidents such as railway outage

Method used

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  • Railroad bridge top beam detection system and method
  • Railroad bridge top beam detection system and method
  • Railroad bridge top beam detection system and method

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Embodiment approach

[0046] Such as Figure 4 Shown, the present invention also provides a kind of implementation method of railway bridge top girder monitoring, it is characterized in that, comprises the following steps:

[0047] (1) Determine the equipment parameters and quantities of hydraulic jack 4, displacement sensor 3 and stress sensor.

[0048] (2) Carry out on-site installation according to the equipment installation instructions and site conditions, and test the equipment before and after installation to ensure that the equipment is not damaged and stable.

[0049] (3) Assembly and testing of the railway bridge top girder monitoring system to ensure the normal operation of the system.

[0050] (4) Set the pressurization and pressure release parameters of the hydraulic jack 4 and the displacement sensor 3, and set the pressurization process to 3 levels. According to the characteristics of the rail 7, the stress increase value of the rail 7 reaching the predetermined top beam height is ...

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Abstract

The invention discloses a railway bridge top beam detection system and method. The system comprises front-end equipment (a stress sensor, a displacement sensor and a hydraulic jack), an acquisition control unit (a fiber bragg grating demodulator, an acquisition instrument and an electric hydraulic pump) and a system platform. The system is advantaged in that the real-time dynamic information of the lifting height and the steel rail stress is mastered in real time, bridge top beam accuracy is improved, the loading rate of each hydraulic jack is adjusted through the system, the overall balance in the top beam period is guaranteed, the lifting height and the steel rail stress are controllable, and railway shutdown and other accidents caused by steel rail breakage are avoided.

Description

technical field [0001] The invention relates to the field of railway top beams, in particular to a railway bridge top beam detection system and method. Background technique [0002] In recent years, with the rapid development of society and economy, the scale of high-speed railway construction has continued to expand, facing areas with more complex geological environmental conditions, such as Sichuan, Yunnan, Guizhou, Tibet and other regions. Southwest China is located on the east side of the Qinghai-Tibet Plateau. Due to the continuous uplift of the Qinghai-Tibet Plateau for nearly a million years, the regional dynamic conditions of "high crustal stress" and "strong earthquake activity" have been formed. During the operation of the high-speed railway, the influence of regional tectonic movement and unfavorable geological bodies may cause the deformation of the bridge foundation, which will endanger the safety of train operation. [0003] The track smoothness requirements o...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01L1/24G01B21/02
CPCG01D21/02G01L1/242G01B21/02
Inventor 李刚高柏松徐骏张杰亮杨国静杨泉郭海强王占盛杨淑梅李炼
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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