基于炮孔不同耦合介质的孔壁爆炸载荷及比能时间函数分析

钟明寿;龙源;李兴华;邵鲁中;谢全民

振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 116-119.

PDF(1163 KB)
PDF(1163 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 116-119.
论文

基于炮孔不同耦合介质的孔壁爆炸载荷及比能时间函数分析

  • 钟明寿; 龙源; 李兴华; 邵鲁中; 谢全民
作者信息 +

Study on the time function for borehole explosive loading and specific energybased on the different coupling medium

  • Zhong Ming-shou; Long Yuan; Li Xing-hua; Ma Hai-yang; Xie Quan-min
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文章历史 +

摘要

为从炮孔装药耦合介质的选取上改善爆破效果和控制爆破振动危害,应用爆炸力学的相关理论建立耦合装药、不同耦合介质(水、空气、泥土)装药条件下孔壁爆炸载荷和透射比能的计算方法,通过MATLAB编程计算得到岩石介质中炮孔孔壁爆炸载荷和透射比能的时间函数并作图比较分析。研究表明:耦合装药时,孔壁爆炸载荷的初始值最大,但是衰减也最快;水不耦合装药时,孔壁爆炸载荷的初始值次之,但衰减速度最慢,作用时间最长;水不耦合装药时,孔壁透射比能量最大,耦合装药时次之;空气和泥土不耦合装药孔壁爆炸载荷与透射比能均较小。因此水不耦合装药提高了能量利用率,更有利于改善爆破效果,但产生的爆破振动强度大、作用时间长,不利于爆破振动危害控制。

Abstract

To improve the explosive crushing effect and control the explosive vibration from the coupling medium, the calculation model of explosive loading and specific energy were established under the different coupling medium of explosion source. The time function and curve of explosive loading and specific energy were calculated by programming in rock medium. The results show that: the initial borehole explosive loading is maximum, but the attenuation is also the fastest when coupling charge; Although the value is smaller in water decoupling charge, the attenuation is slowest; the specific energy of water decoupling charge is maximum, the value of coupling charge is following; while all the value of air and soil-decoupling charge is minimum. So it’s good for improving the blasting crushing effect and bad for controlling blasting vibration, when the coupling medium is water.

关键词

爆炸力学 / 耦合介质 / 爆炸载荷 / 透射比能 / 时间函数

Key words

mechanics of explosion / coupling medium / explosive loading / specific energy / time function

引用本文

导出引用
钟明寿;龙源;李兴华;邵鲁中;谢全民. 基于炮孔不同耦合介质的孔壁爆炸载荷及比能时间函数分析[J]. 振动与冲击, 2011, 30(7): 116-119
Zhong Ming-shou; Long Yuan;Li Xing-hua;Ma Hai-yang;Xie Quan-min. Study on the time function for borehole explosive loading and specific energybased on the different coupling medium [J]. Journal of Vibration and Shock, 2011, 30(7): 116-119

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