作者
Jude Shalitha Perera, Nelson Lam
发表日期
2023/3/1
期刊
International Journal of Impact Engineering
卷号
173
页码范围
104476
出版商
Pergamon
简介
In a hilly and congested urban environment, use of reinforced concrete barrier for hillslope protection is common. With some of these barriers, a layer of gabion is placed in front of the barrier to provide additional protection to avoid localised failure caused to the concrete surface as direct contact is made with a fallen boulder. In addition, the layer of gabion would also function as cushion which mitigates the transfer of momentum to the barrier wall behind it causing bending to occur. There has only been one study that targeted at modelling this cushioning mechanism, but it has only dealt with single boulder strike scenarios. Other studies on impact on gabions did not deal with momentum transfer, though they did investigate the effect of reducing the transmitted force and energy dissipation. This study presents a new design procedure which accounts for the cushioning mechanism of the gabion in multiple strike …
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