落石特性の異なる水平堆積層内の衝撃力伝達挙動に関する二次元個別要素法解析
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概要
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Cushioning materials, such as granular mats and sand mats placed on rock sheds, are attracting attention as construction devices that can effectively disperse and reduce rock fall energy before rocks collide with protection works. To support performance-based designs for rock fall countermeasures, the present study estimated rock fall behaviors and impact forces using the discrete element method (DEM), and investigated a parameter determination method for the rational use: especially, damping factor was focused. The effects of loading conditions were also examined, such as shape of falling mass and its velocity, by considering the accumulated impulse and rate dependency of load-displacement of granular mat.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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