Dynamic response of pipelines with various burial depth due to underwater explosion
Dynamic response of pipelines with various burial depth due to underwater explosion
复制标题
不同埋深管道水下爆炸的动力响应
DOI：
10.1016/j.oceaneng.2018.06.045
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发表时间：
2018-09
影响因子：
5
通讯作者：
Jeng D. -S.
中科院分区：
文献类型：
--
作者：
Wang Y. -G.;Liao C. C.;Wang J. -H.;Jeng D. -S.
第二次世界大战期间遗留在港口和码头的水下爆炸物可能会严重威胁水下管道，而这些爆炸物可能不会在侦察调查中进行检查。建立了水下爆炸作用下管道动力响应的三维数值模型。目前的研究主要是同时考虑流固耦合作用和海底管道耦合作用。所提出的集成模型已被验证对实验数据在以前的文献中。已经发现，铺设在海床上的管道倾向于从爆炸中滚离，而不是在管道段中变形。半埋地管道在再加载效应和沟槽约束的共同作用下，最易受到破坏。根据计算结果，浅埋敷设是提高水下管道抗爆能力的有效方法。对于浅埋管道，由于周围土体的增强，管道的应力水平略有增加，而管道的整体侧向位移和单元压力随着埋深的增加而减小。
Underwater explosives that left in ports and harbors during World War II, which may not be inspected in reconnaissance surveys could threat submerged pipelines seriously. This paper developed a three-dimensional numerical model for dynamic response of pipelines induced by underwater explosion. Both FSI (Fluid-Structure interaction) and PSI (Pipeline-Seabed interaction) are taken into consideration simultaneously in current research. The proposed integrated model has been validated against experiment data available in previous literature. It has been found that the pipeline laid on the seabed tends to roll away from detonation rather than to deform in the pipeline section. The semi-buried pipeline is the most vulnerable due to combined action of reloading effect and trench constraint. Based on the numerical results, shallow buried installation is an effective method to enhance the anti-blast ability of submerged pipelines. The stress level of the pipeline increases slightly due to enhancement of the surrounding soil for shallow buried pipelines, while the integral lateral displacement and element pressure decrease with increase of burial depth.
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影响因子：
5.1
作者：
E. Leong;S. Anand;H. Cheong;C. H. Lim
通讯作者：
E. Leong;S. Anand;H. Cheong;C. H. Lim
DOI：
10.1115/omae2013-10736
发表时间：
2013-06
期刊：
--
影响因子：
--
作者：
F. V. D. Abeele;P. Verleysen
通讯作者：
F. V. D. Abeele;P. Verleysen
影响因子：
5.1
作者：
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通讯作者：
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DOI：
10.1016/s0308-0161(00)00022-3
发表时间：
2000-06
影响因子：
3
作者：
S. W. Gong;K. Lam;C. Lu
通讯作者：
S. W. Gong;K. Lam;C. Lu
DOI：
10.1115/1.1325412
发表时间：
2000-12
期刊：
Journal of Applied Mechanics
影响因子：
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作者：
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通讯作者：
Z. Zong;K. Lam