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Pavement deflection measurement device and measurement method thereof

A measuring device and road surface deflection technology, applied in the direction of roads, roads, road repairs, etc., can solve the problems of low measurement accuracy, measurement easily affected by human factors, etc., to ensure accuracy, facilitate long-term monitoring and detection, and good repeatability Effect

Inactive Publication Date: 2012-02-01
WUHAN WUDA ZOYON SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a road surface deflection measuring device and its measuring method, which overcomes the defects of low accuracy of existing measurement and the measurement is easily affected by human factors

Method used

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  • Pavement deflection measurement device and measurement method thereof
  • Pavement deflection measurement device and measurement method thereof
  • Pavement deflection measurement device and measurement method thereof

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Embodiment Construction

[0022] combine figure 1 As shown in the structural diagram, the device includes several accelerometers—the first accelerometer 1, the second accelerometer 2, the third accelerometer 3, and the fourth accelerometer 4. Each accelerometer is connected to the data acquisition card through the controller , the data acquisition card adopts a portable data acquisition card, and the portable data acquisition card is installed in a computer, and the computer plays the role of a processor and an output device. The accelerometer is buried in the surface layer of the road surface to be measured, connected to the data acquisition card through a signal line, the data acquisition card is connected to the communication interface of the processor, and the processor is also connected to the output device.

[0023] combine figure 2 , 3 , T-type sedimentation meter shown in 4, T-type sedimentation meter comprises accelerometer 13, concave seat 12, cover plate 11, each accelerometer 13 is place...

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Abstract

The invention relates to a pavement deflection measurement device and a measurement method thereof. The pavement deflection measurement device comprises an acceleration meter, a data collection card, a processor and output equipment, wherein the acceleration meter is buried in a surface layer of the pavement to be measured and is connected with the data collection card through a signal wire, the data collection card is connected with a communication interface of the processor, and the processor is also connected with the output equipment. The acceleration meter burying method is adopted, the acceleration meter is pre-buried in the surface layer of the soft pavement, the pavement deflection speed during the heavy duty truck milling is directly collected in real time, the dynamic collection of deflection values is realized, and the deflection values can be used as the calibration reference values of Benkelman beams. Compared with the traditional pavement deflection calibration mode, the method has the advantages that the influence caused by external collection environment is avoided, the measurement precision is improved, the measurement efficiency is also improved, and very wide practicability and universality are realized.

Description

technical field [0001] The invention relates to the technical field of non-destructive detection and evaluation of highway subgrade pavement, in particular to a road surface deflection measurement device and a measurement method thereof. Background technique [0002] The detection and analysis of pavement deflection is the basis of pavement bearing capacity evaluation and an important part of pavement performance evaluation. It is not only crucial to the inspection and control of engineering quality, but also determines the scientific level of road network maintenance decision-making, which directly affects maintenance. Fund allocation and rationality of old road reconstruction design. [0003] At present, there are many testing methods for deflection value, such as Beckman beam method, drop weight deflection tester, automatic deflection tester and so on. The Beckman beam method, when collecting data, needs to refer to the geographical environment, road surface environment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/01
Inventor 李清泉曹民毛庆洲张德津章丽萍谷伟华曾星
Owner WUHAN WUDA ZOYON SCI & TECH
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