Noise reduction effect of noise barrier made of sound-absorbed bricks with resonance cavities along expressway

Yuan Wei-ning; Dong Xiao-lin; Zhang Yu-fen

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Yuan Wei-ning, Dong Xiao-lin, Zhang Yu-fen. Noise reduction effect of noise barrier made of sound-absorbed bricks with resonance cavities along expressway[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 99-103.

Citation:

Yuan Wei-ning, Dong Xiao-lin, Zhang Yu-fen. Noise reduction effect of noise barrier made of sound-absorbed bricks with resonance cavities along expressway[J]. Journal of Traffic and Transportation Engineering, 2007, 7(2): 99-103.

Citation:

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Noise reduction effect of noise barrier made of sound-absorbed bricks with resonance cavities along expressway

1.
School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China
2.
School of Environment Science and Engineering, Chang'an University, Xi'an 710064, Shaanxi, China

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Author Bio:
Yuan Wei-ning(1964-), male, associate professor, +86-29-82337308, Yuanwein@chd.edu.cn
Received Date: 2006-09-19
Publish Date: 2007-04-25

Abstract

Abstract

In order to solve the problem of acoustic environment impact resulted from traffic noise on the villages along expressway, the traffic noise of constructed expressway was monitored, a forecasting model of traffic noise was given to calculate the traffic noise levels, and a noise reduction method was proposed, that noise barrier was made of sound-absorbed bricks with resonance cavities on both sides of expressway.Noise barrier engineering and noise monitoring result indicate that the method is feasible, the noise level is decreased by 13~16 dB, the structure of the barrier is simple, its cost is low, its construction is easy, and its environment and economic benefits are obvious.
- traffic engineering,
- sound-absorbed barrier,
- sound-absorbed bricks with resonance cavities,
- acoustics design,
- structure design,
- noise reduction monitoring

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References(12)

References

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