Yield prediction method of surface explosions at soil site

ZHANG Liangyong; LU Qiang; XIAO Weiguo; TANG Shiying; WANG Minchao; FANG Houlin; ZHANG Dezhi

doi:10.13471/j.cnki.acta.snus.2021B112

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Yield prediction method of surface explosions at soil site

Research articles | 更新时间：2023-11-01

- Yield prediction method of surface explosions at soil site
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 61, Issue 6, Pages: 99-112(2022)
- 作者机构：
  
  1.国防科技大学气象海洋学院，湖南长沙 410073
  2.西北核技术研究所，陕西西安 710024
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.2021B112
  CLC： O389
- Published：25 November 2022，
  
  Published Online：16 May 2022，
  
  Received：11 December 2021，
  
  Accepted：25 January 2022
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张亮永,卢强,肖卫国等.土质场地地面爆炸当量预测方法[J].中山大学学报(自然科学版),2022,61(06):99-112.

ZHANG Liangyong,LU Qiang,XIAO Weiguo,et al.Yield prediction method of surface explosions at soil site[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(06):99-112.
张亮永,卢强,肖卫国等.土质场地地面爆炸当量预测方法[J].中山大学学报(自然科学版),2022,61(06):99-112. DOI： 10.13471/j.cnki.acta.snus.2021B112.

ZHANG Liangyong,LU Qiang,XIAO Weiguo,et al.Yield prediction method of surface explosions at soil site[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(06):99-112. DOI： 10.13471/j.cnki.acta.snus.2021B112.

摘要

利用某土质场地化爆实验的声震数据，考虑地面反射和地介质耦合作用，对以经验和半经验声学模型为基础的地面爆炸当量预测方法进行了讨论。结合地震波模型，采用声震分析方法分析了地面爆炸当量的预测精度。结果表明：地介质耦合作用对声学方法的地面爆炸当量预测精度影响较大；若不考虑地介质耦合作用，土质场地的当量预测结果明显小于真实值。联合地震波数据增加额外约束进行反演，可以减小当量-爆高（埋深）折中关系，获得较高的当量估计精度。对比多种分析模型发现，采用IPM（improved parametric models）声学模型和近地面声学模型进行声震分析获得的当量预测精度最高。

Abstract

In order to realize the rapid prediction of surface explosion yield， the surface explosion yield prediction methods were discussed on the basis of empirical and semi-empirical acoustic models， taking into account the influence of ground reflection and ground coupling. Furthermore，the seismic model was combined with acoustic models as seismoacoustic analysis method to analyze the prediction accuracy of surface explosion yield. The results show that the ground coupling affects the prediction accuracy of surface explosion through acoustic methods， and the predicted yield values of soil medium without considering ground coupling are obviously smaller than the true ones. Secondly， the combined seismic data can provide additional constraints which can reduce the trade-off of height-of-burst （depth-of-burial） and yield with high prediction accuracy of yield. Finally， seismoacoustic analysis by adopting IPM（improved parametric models） acoustic model and near-surface acoustic model has the best performance on the prediction accuracy of yield in all analyzed models.

关键词

地面爆炸当量预测声学模型声震分析声耦合系数

Keywords

surface explosionyield predictionacoustic modelseismoacoustic analysisacoustic coupling coefficient

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