Chunxia Zhang’s scientific contributions

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Publications (1)


Figure 1. Layout of falling-ball
Figure 6. Comparison of test results.
The statistics of deflection values at the center point
Comparative Test and Analysis of Falling-Ball Instrument and FWD Deflection Detection Method
  • Article
  • Full-text available

July 2020

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110 Reads

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2 Citations

IOP Conference Series Earth and Environmental Science

Chunxia Zhang

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Huayang He

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Zhu Luo

Through the experiment, the deflection detection methods of the falling-ball instrument and the falling weight deflect meter (FWD) were compared, and their correlations were analyzed. The results show that the test depth and range of FWD are larger than the falling-ball instrument, and there is a good linear relationship between the road surface deflection values measured by the falling-ball instrument and FWD.

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Citations (1)


... e FWD detection is used more widely because of its established technique and easy implementation. FWD detection is based on the principle that, under the same impact load, the deflection of the void area increases significantly [7][8][9][10][11][12]. Because of the influence of climatic factors, such as solar radiation and ambient temperature, cement pavement panels experience temperature warping at different degrees [13][14][15], which affect the accuracy of actual pavement detection results. ...

Reference:

Temperature Correction for FWD Deflection in Cement Pavement Void Detection
Comparative Test and Analysis of Falling-Ball Instrument and FWD Deflection Detection Method

IOP Conference Series Earth and Environmental Science