alexa Consideration of the Maximum Impact Force Design for th
ISSN: 2167-0587

Journal of Geography & Natural Disasters
Open Access

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Research Article

Consideration of the Maximum Impact Force Design for the Rock-Shed Slab

Chia-Ming Lo1, Ching-Fang Lee2* and Ming-Lang Lin3

1Department of Civil and Disaster Prevention Engineering, National United University, Miaoli, Taiwan

2Disaster Prevention Technology Research Center, Sinotech Engineering Consultants, INC, Taipei, Taiwan

3Department of Geosciences, National Taiwan University, Taipei, Taiwan

*Corresponding Author:
Ching-Fang Lee
Disaster Prevention Technology Research Center
Sinotech Engineering Consultants
INC, Taipei, Taiwan
Tel: 886-2- 27580568
E-mail: [email protected]

Received date March 17, 2016; Accepted date May 23, 2016; Published date May 25, 2016

Citation: Lo CM, Lee CF, Lin ML (2016) Consideration of the Maximum Impact Force Design for the Rock-Shed Slab. J Geogr Nat Disast 6:169. doi:10.4172/2167-0587.1000169

Copyright: © 2016 Lee CF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




This study aims at the estimation of the maximum impact force for a rock-shed slab under collision by a rock fall. A DEM program calibrated from small-scale physical experiments is used to model the movement of rock fall clusters and to measure the resultant impact forces. The results obtained from the small-scale experiments show that the maximum impact forces are significantly affected by the mass of the rock fall, the height from which they fall as well as the falling process. Full-scale numerical modeling based upon a field case not only confirms the experimental results but also sheds light upon the influence of the rock fall mode and the contact stiffness between the rock and the rock-shed. This study provides guidelines for the design of rock-shed structures countering large rock fall problems.


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