山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2011年
26期
55-56
,共2页
坑道%爆炸冲击波%泡沫铝%衰减%数值模拟
坑道%爆炸遲擊波%泡沫鋁%衰減%數值模擬
갱도%폭작충격파%포말려%쇠감%수치모의
tunnel%blast wave%aluminum foam%attenuation%numerical simulation
运用大型有限元软件LS-DYNA，在相同爆炸冲击波作用下，对坑道口部普通钢板防护门前面不设置泡沫铝缓冲层和设置泡沫铝缓冲层两种情况分别进行了数值模拟和对比分析，结果表明：泡沫铝缓冲层对爆炸冲击波峰值压力有着良好的衰减特性，对坑道口部抗爆炸冲击波设计有着一定的参考价值。
運用大型有限元軟件LS-DYNA，在相同爆炸遲擊波作用下，對坑道口部普通鋼闆防護門前麵不設置泡沫鋁緩遲層和設置泡沫鋁緩遲層兩種情況分彆進行瞭數值模擬和對比分析，結果錶明：泡沫鋁緩遲層對爆炸遲擊波峰值壓力有著良好的衰減特性，對坑道口部抗爆炸遲擊波設計有著一定的參攷價值。
운용대형유한원연건LS-DYNA，재상동폭작충격파작용하，대갱도구부보통강판방호문전면불설치포말려완충층화설치포말려완충층량충정황분별진행료수치모의화대비분석，결과표명：포말려완충층대폭작충격파봉치압력유착량호적쇠감특성，대갱도구부항폭작충격파설계유착일정적삼고개치。
Using the finite element software LS-DYNA, under the same blast wave loading, numerical simulation is respectively clone for the response of general steel defensive structure and steel defensive structure with aluminum foam buffer before general steel. Comparative analysis is made with numerical simulation＇ s result of the two defensive structure. The result shows that steel defensive structure with aluminum foam buffer behind general steel has a good attenuation characteristic for peak pressure of blast wave. It is proved that the new defensive structure is worth applying in anti-blast design of the entrance of tunnel.
