Energy Analysis for Energy Dissipation Shed-Tunnel’s Rockfall Impact Signal

Abstract:

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Shed-tunnel is one of common prevention measures along the highway. First, denoised the rockfall impact signal when the rock impact the ordinary shed-tunnel and the energy dissipation shed-tunnel by the wavelet theory. The calculation result indicated that the wavelet theory’s denoise effect is very good. Then, pick-up each frequency band’s the rockfall impact signal, and analysed the energy for each frequency band’s impact signal. The result indicated that the energy dissipation shed-tunnel’s impact energy concentrate in the low frequency part. There are only 0.4% impact energy in the high frequency part. Besides, the energy dissipation shed-tunnel’s impact energy in the low frequency part is higher than the the ordinary shed-tunnel, and the energy dissipation shed-tunnel’s impact energy depressed velocity when the impact frequency increase is fast than the ordinary shed-tunnel. So the energy dissipation shed-tunnel’s design must consider the low frequency impact,and could ignore the high frequency impact.

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao

Pages:

1054-1057

DOI:

10.4028/www.scientific.net/AMR.261-263.1054

Citation:

L. F. Wang et al., "Energy Analysis for Energy Dissipation Shed-Tunnel’s Rockfall Impact Signal", Advanced Materials Research, Vols. 261-263, pp. 1054-1057, 2011

Online since:

May 2011

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Price:

$35.00

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