摘要
气泡帷幕能有效地削弱水中冲击波对周围环境的影响。为了研究气泡帷幕供风量和层数对水中冲击波的协同作用,在供风量为30、60、90 L/min的条件下分别设计了含1、2、3层气泡帷幕的水下爆炸试验。结果表明,气泡帷幕的衰减率随供风量和层数增加而增大。当供风量较小(如30、60 L/min)时,随着气泡帷幕层数的增加,相邻层数之间峰值压力的衰减效率越来越低;当供风量较大(如90 L/min)时,随着气泡帷幕层数的增加,相邻层数之间峰值压力的衰减效率越来越高。结合实际工程的经济效益和水下复杂环境问题对削波效果进行分析,确定在供风量为30 L/min时开启2层气泡帷幕是最优的削波方案,为相关的实际工程问题提供参考和新思路。
The bubble curtain can effectively weaken the influence of underwater shock wave on the surrounding environment.In order to investigate the synergistic effect of air supply volume and bubble curtain layer on the shock wave attenuation of underwater explosion,underwater explosion tests with one layer,two layers and three layers were designed under the air supply volume of 30,60,and 90 L/min,respectively.The results show that the attenuance of bubble curtain increases with the increase of air supply volume and layer number.When the air supply is small(such as 30,60 L/min),with the increase of the number of bubble curtain layers,the attenuation efficiency of the peak pressure between adjacent layers becomes worse;when the air supply is large(such as 90 L/min),with the increase of the number of bubble curtain layers,the attenuation efficiency of the peak pressure between adjacent layers becomes better.Combined with the economic benefits of the actual project and the complex underwater environment problems to analyze the attenuation effect of the bubble curtain,it was determined that the two-layer bubble curtain with the air supply rate of 30 L/min was the optimal attenuation scheme,which provides reference and new ideas for related practical engineering problems.
作者
杜明燃
陈智凡
陆少锋
梁进
李基锐
王尹军
王天照
陈宇航
DU Mingran;CHEN Zhifan;LU Shaofeng;LIANG Jin;LI Jirui;WANG Yinjun;WANG Tianzhao;CHEN Yuhang(School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,Anhui,China;Research Institution of Underwater Rock-Cutting Engineering at Guangxi Zhuang Municipality Region,Nanning 530200,Guangxi,China;Guangxi New Harbour Engineering Co.,Ltd.,Nanning 530200,Guangxi,China;BGRIMM Technology Group,Beijing 100160,China)
出处
《高压物理学报》
CAS
CSCD
北大核心
2024年第1期162-170,共9页
Chinese Journal of High Pressure Physics
基金
安徽省高校科学研究项目(KJ2021A0431)
广西重点研发计划(桂科AB22035001)
安徽省自然科学基金(1908085QA33)
安徽理工大学引进人才科研启动基金(11881)
广西重点研发计划(防科AB21014001)。
关键词
气泡帷幕
水中爆炸冲击波
供风量
衰减率
衰减效率
bubble curtain
underwater explosion shock wave
air supply volume
attenuance
attenuation efficiency
