柱状药包爆破应力波时空衰减规律

现代矿业 ›› 2020, Vol. 36 ›› Issue (03): 31-35.

柱状药包爆破应力波时空衰减规律

杨潘磊¹ 唐雷虎²

1.南京宝地梅山产城发展有限公司矿业分公司；2.中南大学资源与安全工程学院

出版日期:2020-03-25 发布日期:2021-09-13

Stress Wave Attenuation Law of Cylindrical Charge Blasting Based on Spacetime Attenuation

Yang Panlei¹Tang Leihu²

1.Mining branch,Nanjing Baodi Meishan Industrial City Development Co.,Ltd.;2.School of Resource and Safety Engineering,Central South University

Online:2020-03-25 Published:2021-09-13

摘要/Abstract

摘要： 柱状药包爆破产生的应力波在岩石介质中的传播规律，是进行爆破理论分析和装药结构设计的重要基础，但是目前柱状药包爆破应力波传播规律仅限于简单的叠加求解。基于球状药包爆破应力波的时空衰减规律，利用现有应力波在岩石介质中的衰减规律与数值模拟相结合验证，得出了较为合理的柱状药包爆破应力波衰减规律。指出柱状药包爆破产生的应力波在炸药传播方向存在递增现象，且柱状药包爆破产生应力波的作用时间相比球状药包有所增加。

关键词: 时空衰减柱状药包应力波衰减规律

Abstract: The propagation law of stress waves generated by cylindrical charge blasting in rock is an important basis for blasting theoretical analysis and charge structure design.But at present,the propagation law of stress wave produced by cylindrical charge blasting is limited to simple superposition.Based on the timespace attenuation law of stress wave produced by spherical charge blasting,the attenuation law of stress wave in rock is verified by combining with numerical simulation,and a reasonable attenuation law of stress wave produced by cylindrical charge blasting is obtained.It is pointed out that the stress produced by cylindrical blasting increases in the propagation direction of wave explosive,and the action time of stress wave produced by cylindrical blasting increases compared with that of spherical blasting.

Key words: Spacetime attenuation,Cylindrical charge blasting,Stress wave,Attenuation Law

杨潘磊唐雷虎. 柱状药包爆破应力波时空衰减规律[J]. 现代矿业, 2020, 36(03): 31-35.

Yang Panlei Tang Leihu. Stress Wave Attenuation Law of Cylindrical Charge Blasting Based on Spacetime Attenuation[J]. Modern Mining, 2020, 36(03): 31-35.