基于深孔微差爆破应力场的爆破参数优化*

现代矿业 ›› 2024, Vol. 40 ›› Issue (02): 80-85.

基于深孔微差爆破应力场的爆破参数优化*

为克服矿房大直径深孔微差爆破存在的不足，根据波动学理论，依据柱状药包单孔爆

破应力传播衰减规律，圈定了微差爆破前后起爆孔距和延期时间范围，进一步推导出两孔微差爆破

的叠加应力场函数解析式。在此基础上，依据 Mises 准则反推得出孔网参数与延期时间计算公式。

通过LS-DYNA模拟计算和现场工业试验，对比应力场分布情况和实际爆破效果，验证了理论分析的

合理性。

1. 乌拉特后旗紫金矿业有限公司；

2. 福州大学紫金地质与矿业学院；

3. 福州大学爆炸技术研究所

出版日期:2024-02-18 发布日期:2024-08-14

Blasting Parameter Optimization Based on Deep Hole Millisecond Blasting Stress Field

In order to overcome the shortcomings of large diameter deep hole millisecond blasting in

underground mine，according to the theory of wave theory，based on the attenuation law of stress propaga⁃

tion of single hole blasting with cylindrical charge，the range of initiation hole distance and delay time be⁃

fore and after millisecond blasting are delineated，and the superposition stress field function of two hole mil⁃

lisecond blasting is further deduced.On this basis，the calculation formula of hole network parameters and

delay time is deduced according to Mises criterion.The rationality of the theoretical analysis was verified by

comparing the stress field distribution and the actual blasting effect through LS-DYNA simulation calcula⁃

tion and field industrial test.

1. Urad Rear Bauner Zijin Mining Co.，Ltd.；

2. Zijin School of Geology and Mining，Fuzhou University；

3. Institute of Explosion Technology，Fuzhou University

Online:2024-02-18 Published:2024-08-14

摘要/Abstract

摘要：

为克服矿房大直径深孔微差爆破存在的不足，根据波动学理论，依据柱状药包单孔爆

破应力传播衰减规律，圈定了微差爆破前后起爆孔距和延期时间范围，进一步推导出两孔微差爆破

的叠加应力场函数解析式。在此基础上，依据 Mises 准则反推得出孔网参数与延期时间计算公式。

通过LS-DYNA模拟计算和现场工业试验，对比应力场分布情况和实际爆破效果，验证了理论分析的

合理性。

Abstract:

In order to overcome the shortcomings of large diameter deep hole millisecond blasting in

underground mine，according to the theory of wave theory，based on the attenuation law of stress propaga⁃

tion of single hole blasting with cylindrical charge，the range of initiation hole distance and delay time be⁃

fore and after millisecond blasting are delineated，and the superposition stress field function of two hole mil⁃

lisecond blasting is further deduced.On this basis，the calculation formula of hole network parameters and

delay time is deduced according to Mises criterion.The rationality of the theoretical analysis was verified by

comparing the stress field distribution and the actual blasting effect through LS-DYNA simulation calcula⁃

tion and field industrial test.

Key words:

deep hole blasting in stope, millisecond blasting, blasting stress field, blasting parameters

邓国梁唐志恒, 韩启民李晓峰.

基于深孔微差爆破应力场的爆破参数优化*

[J]. 现代矿业, 2024, 40(02): 80-85.

DENG Guoliang TANG Zhiheng, HAN Qimin LI Xiaofeng.

Blasting Parameter Optimization Based on Deep Hole Millisecond Blasting Stress Field

[J]. Modern Mining, 2024, 40(02): 80-85.

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