摘要
利用现有的核爆炸理论,对坑道口部在核钻地弹B61-11侵彻爆炸作用下的破坏效应展开研究。通过直接地冲击破坏参数的计算,以及结合我国核试验所取得的成果,认为坑道口部在爆炸冲击波压力作用下形成了不同的坑道破坏分区,按其破坏机制,可分为剥离震塌破坏、挤压剪切破坏、劈裂拉伸破坏三种破坏形式。研究结果表明坑道口部防护层在B61-11的侵彻爆炸作用下,坑道将产生压实破坏,口部完全丧失防护效能,对工程的抢修造成极大的难度。
The nuclear explosion theory was applied to the research of the damage effect of tunnel portal under the B61 - 11＇s penetration and explosion. The calculation of the direct ground shock parameters was combined with the results of tunnel nuclear tests, different damage divisional zones were created to the tunnel＇s portal which subjected to the explosion compressive shock wave. According to the failure mechanism, three kinds of damage modes occurred which are spalling failure, crushing shearing failure and splitting tensile failure. The results show the protection layers of the entrance are thoroughly damaged under the explosion of the B61 - 11. Great technological difficulty is caused to the rapid repair of underground tunnels in war time.
出处
《弹箭与制导学报》
CSCD
北大核心
2008年第2期97-100,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
空军工程大学工程学院“优秀博士学位论文创新基金”(BC0510)资助
