孔底真空间隔装药爆破试验研究
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摘要
通过对混凝土模型进行爆破试验,对比了孔底真空间隔装药与孔底水间隔、孔底空气间隔、连续装药的爆破效果;利用测振仪采集数据,采取网筛尺寸法,以块度与爆破漏斗体积的百分比作为衡量标准,对孔底真空间隔装药技术进行初步探究。结果表明:采用孔底真空间隔装药技术爆破,模型破碎块度均匀性优于连续装药结构与其他介质孔底装药结构;孔底真空间隔装药技术有利于岩块破碎,减少爆破根底;真空间隔装置具有缓冲和滞后作用,能使炮孔中炸药能量分布更为均匀。
Through the blasting tests of concrete model,the differences of blasting effect between the vacuum-decking charge with the water-decking charge,air-decking charge and continuous charge were compared.The data was collected by vibration meter.Taking the percentage of block and blasting crater volume as a measuring standard,the net size method was used to study the vacuum-decking charge technology.The results showed that the uniformity of blasting block formed by the vacuumdecking charge blasting in the bottom of blasting hole was better than that by the continuous charge blasting and other charge blasting technologies.The vacuum-decking charge technology was beneficial to break the rock mass and to reduce the bedrock.And the vacuum-decking device had an effect of cushioning and hysteresis,making the energy distribution of explosive in the blasting hole be more homogeneous.
Through the blasting tests of concrete model,the differences of blasting effect between the vacuum-decking charge with the water-decking charge,air-decking charge and continuous charge were compared.The data was collected by vibration meter.Taking the percentage of block and blasting crater volume as a measuring standard,the net size method was used to study the vacuum-decking charge technology.The results showed that the uniformity of blasting block formed by the vacuumdecking charge blasting in the bottom of blasting hole was better than that by the continuous charge blasting and other charge blasting technologies.The vacuum-decking charge technology was beneficial to break the rock mass and to reduce the bedrock.And the vacuum-decking device had an effect of cushioning and hysteresis,making the energy distribution of explosive in the blasting hole be more homogeneous.
引文
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[5]朱红兵,卢文波.空气层装药爆破机理研究[J].岩土力学,2007,28(5).
[6]陈作彬,程良玉,钟明寿,等.孔底惰性介质间隔装药爆破实验[J].工程爆破,2017,23(01):12-15.
[7]卢文波,舒大强,朱红兵,等.空气间隔装药结构在轮廓爆破中的应用研究[A]//中国爆破新技术[C].2004:296-301.
[8]赵继忠.炮孔间隔装药技术在首钢水厂铁矿台阶深孔爆破中的研究与应用[A]//首钢矿业文集[C].1992:36-38.
[9]叶海旺,汪柳俊,冉成,等.分层装药爆破间隔填塞长度优化研究[J],爆破,2017,34(02):26-33.
[10]王冬兵,张建华.不同介质间隔装药爆破数值模拟[J].矿业研究与开发,2016,36(03):93-96.
[2]梁为民,LIU Hong-yuan,周丰峻.不耦合装药结构对岩石爆破的影响[J].北京理工大学学报,2012,32(12):1215-1218,1228.
[3]潘吉仁.底部空气柱装药爆破效果模型试验研究[J].淮南矿业学院学报,1993,13(4):17-21.
[4]辜大志,谢圣权,陈寿如.孔底空气间隔装药改善爆破震动和效果的研究[J].采矿技术,2004,4(4):64-66.
[5]朱红兵,卢文波.空气层装药爆破机理研究[J].岩土力学,2007,28(5).
[6]陈作彬,程良玉,钟明寿,等.孔底惰性介质间隔装药爆破实验[J].工程爆破,2017,23(01):12-15.
[7]卢文波,舒大强,朱红兵,等.空气间隔装药结构在轮廓爆破中的应用研究[A]//中国爆破新技术[C].2004:296-301.
[8]赵继忠.炮孔间隔装药技术在首钢水厂铁矿台阶深孔爆破中的研究与应用[A]//首钢矿业文集[C].1992:36-38.
[9]叶海旺,汪柳俊,冉成,等.分层装药爆破间隔填塞长度优化研究[J],爆破,2017,34(02):26-33.
[10]王冬兵,张建华.不同介质间隔装药爆破数值模拟[J].矿业研究与开发,2016,36(03):93-96.