基于高速摄影技术模拟深水爆破环境下气泡脉动规律研究  

RESEARCH ON BLASTING BUBBLE PULSATION RULES IN SIMULATED DEEPWATER ENVIRONMENT BASED ON HIGH-SPEED PHOTOGRAPHY TECHNOLOGY

作　　者：朱宽[1,2] 钟冬望[2] 何理[2] 司剑峰[2] 殷秀红[2] 刘建程[2] 

机构地区：[1]葛洲坝易普力股份有限公司,重庆400023 [2]武汉科技大学爆破技术研究中心,武汉430065

出　　处：《工程爆破》2015年第1期5-9,共5页Engineering Blasting

基　　金：国家自然科学基金项目(50774056);国家自然科学基金项目(51174147)

摘　　要：采用GX8高速摄影机在水下爆炸罐中进行0．8～2．4gTNT当量炸药爆炸试验监测，运用注水加压方式在模拟深水环境中实拍出气泡脉动过程。分析气泡半径、脉动周期与药量、水深之间的关系得到：脉动周期和同一周期内最大脉动半径随着水深的增加呈对数衰减趋势；同一水深条件下最大脉动半径随药量增加明显增大，且脉动周期随之增加。将实测结果与经验公式计算值进行比较，验证了库尔公式在深水环境下的适用性。The GX-8high-speed photographic camera was used to monitor blasting test of 0.8g to 2.4g TNT equivalent explosive in an underwater explosion tank and the pulsating process of the bubble was shot through the way of water injection pressure under simulated deepwater environment.On the analysis of the relationship among bubble radius,pulsating period,the quantity of explosive as well as the depth of water,it was found that the pulsating period and the maximal pulsating radius in the same period were attenuation with logarithmic decrement with the increase of the depth of water.The maximal pulsating radius increased with the adding quantity of explosive in the same depth of water.Correspondently,the pulsating period also increased.Through the comparison between measured results and calculated values of empirical formula,the applicability of Kurt formula in deepwater was verified.

关 键 词：高速摄影机 水下爆炸 脉动半径 脉动周期 

分 类 号：TB89[一般工业技术—摄影技术]