Methods for determining the coupling coefficient and stemming coefficient of underground explosions
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摘要: 耦合系数与填塞系数广泛应用于地下爆炸地冲击大小预测及爆炸破坏范围评估,随着埋深增加,爆炸地冲击耦合机制发生变化,不同耦合系数呈现不同演化规律。系统总结了地下爆炸耦合系数与填塞系数的试验与理论研究成果,介绍了常用耦合系数类型及换算关系,分析了现有试验中不同耦合系数及不同介质中耦合系数随埋深的变化规律,讨论了耦合系数计算方法及临界埋深确定方法,对比了不同介质中的等效当量系数与填塞系数,并对目前研究中尚有待解决的问题和下一步的研究方向进行了展望。
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关键词:
Abstract: Coupling coefficients and stemming coefficients are widely used in predicting the magnitude of ground shock from underground explosions and assessing the extent of damage zones. As burial depth increases, the coupling mechanism of explosion-induced ground shock changes, leading to distinct evolution patterns in different coupling coefficients. This paper provides a review of research progress on coupling coefficients and stemming coefficients for ground shock generated by underground explosions. The types and conversion relationships of coupling coefficients are introduced. The variation patterns of different coupling coefficients with burial depth in different media are analyzed based on experimental data. Methods for calculating coupling coefficients and determining critical burial depth are discussed. Equivalent yield coefficients and stemming coefficients in different media are compared. Finally, unresolved issues in current research are identified, and potential future research directions are suggested. -
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