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Rockfall Impact Analysis of Typical Roadway Using Finite Element Simulation
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 Title & Authors
Rockfall Impact Analysis of Typical Roadway Using Finite Element Simulation
Woo, Jin-Ho; Na, Won-Bae;
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 Abstract
This study presents a rockfall impact analysis of a typical roadway. Dynamic finite element analyses using ANSYS AUTODYN are conducted to determine the effect of the drop heights (5 m, 10 m) on the damage to a roadway model. The Rockfall is modeled as a spherical shape with a weight of 400 kg, and each drop height is converted to a corresponding impact velocity to save computational time. The roadway model is comprised of an asphalt layer, base layer, sub-base layer, and sub-grade layer. In this paper, the asphalt is modeled using a linear elastic model. The base layer, sub-base layer, and sub-grade layer are modeled using a Mohr-Coulomb model. From the analyses, the effects of the drop height on the damages and stresses are examined and discussed.
 Keywords
Impact analysis;Rockfall;Asphalt concrete;Finite element analysis;
 Language
English
 Cited by
 References
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