Abstract
In this paper, an explosion experiment was carried out on the OD1219mm-X90-12Mpa natural gas pipeline to study the vibration hazard. Based on a series of experiments, the spatial distribution of the vibration energy was studied. The vibration distribution field was drawn by interpolation method based on re-harmonic equation and it was found that the field was non-circular symmetry. Through in-depth research, it was preliminarily proved that the vibration field had interference characteristics, which was caused by the special vibration source of the pipeline explosion. There was a significant difference in the frequency components between the interference strengthened region and the weakened region. The results shown that the strengthening effect of the interference in the 90° and 30° direction should be taken into account when evaluating the damage scope of the explosion accident. Research provided reference for safety design of parallel pipelines and buildings.
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Funding
This research was supported by the National Natural Science Foundation of China nos. 11 672 331 and 51 608 530. The authors would like to gratefully acknowledge this support.
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https://figshare.com/s/e2aea8d0ff64d0fcebed
As the data laws continue to be studied, the data at other measurement points is not supported for download.
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Huayuan Ma, Long, Y., Zhong, M. et al. Study on Ground Vibration Mode of Physical Explosion of High Pressure Natural Gas Pipeline. Acoust. Phys. 65, 583–592 (2019). https://doi.org/10.1134/S1063771019050142
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DOI: https://doi.org/10.1134/S1063771019050142