Impact force propagation behaviors of rock into horizontal granular mat with different falling conditions using 2D- DEM
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- Hashiba Hirofumi
- 名古屋工業大学 大学院 社会工学専攻
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- Maeda Kenichi
- 名古屋工業大学 都市社会工学科
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- Naito Naoto
- 名古屋工業大学 大学院 社会工学専攻
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- Yamaguchi Satoru
- 独立行政法人土木研究所寒地土木研究所
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- Ushiwatari Yuji
- 構研エンジニアリング 防災施設部
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- Suzuki Kentarou
- 構研エンジニアリング 防災施設部
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- Kawase Ryoji
- 構研エンジニアリング
Bibliographic Information
- Other Title
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- 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
Abstract
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.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))
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Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)) 68 (2), I_443-I_454, 2012
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680326521728
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- NII Article ID
- 130004557287
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- ISSN
- 21854661
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed