某矿山凿岩爆破工艺参数优化试验
|
摘要
为确保矿井开采安全,减少爆破对矿体围岩及周围环境的影响(如巷道边帮滑塌、顶板破坏等),合理设计爆破方案对于控制和改善采矿经济技术指标、降低生产成本具有重要作用。通过对某矿山进行井下爆破试验,在爆破技术设计中,对拉槽爆破方案、孔网参数与孔径、换段爆破、顶板与边帮精细控制爆破和装药方式等进行了详细探讨,并结合该矿山地质特征及生产实际情况,合理确定了孔网参数((1.5~1.7)×(1.5~1.7)m)、炸药单耗(0.35 kg/t),在防治爆破对周边环境的破坏,降低炸药单耗,提高爆破效果等方面取得了一定的成效。
In order to ensure underground mining safety,reduce the impact of blasting process to ore-body surrounding rock mass or its adjacent environment( such as both sides of roadway collapses,roadway roof destruction,and so on),reasonable design of blasting scheme is help for controlling and improving the mining technical indicators,decreasing mining economic cost. Through underground blasting test of a mine,during the the process of blasting design,the slot blasting scheme,mesh parameters and aperture,replacement blasting,fine controlled blasting of roof and both sides of roadway,and charging way are discussed in detail,besides that,based on the geological characteristics and production practice of the mine,the reasonable mesh parameters(( 1. 5 ~ 1. 7) ×( 1. 5 ~ 1. 7) m) and single consumption of explosives( 0. 35 kg/t) are determined. The study results show that the above blasting technical parameters is help for the prevention and treatment of the destruction of blasting to surrounding environment of blasting area,reduction of single consumption of explosives and improvement of blasting effects.
In order to ensure underground mining safety,reduce the impact of blasting process to ore-body surrounding rock mass or its adjacent environment( such as both sides of roadway collapses,roadway roof destruction,and so on),reasonable design of blasting scheme is help for controlling and improving the mining technical indicators,decreasing mining economic cost. Through underground blasting test of a mine,during the the process of blasting design,the slot blasting scheme,mesh parameters and aperture,replacement blasting,fine controlled blasting of roof and both sides of roadway,and charging way are discussed in detail,besides that,based on the geological characteristics and production practice of the mine,the reasonable mesh parameters(( 1. 5 ~ 1. 7) ×( 1. 5 ~ 1. 7) m) and single consumption of explosives( 0. 35 kg/t) are determined. The study results show that the above blasting technical parameters is help for the prevention and treatment of the destruction of blasting to surrounding environment of blasting area,reduction of single consumption of explosives and improvement of blasting effects.
引文
[1]赵雄文,熊国雄,戴宏辉,等.盘区机械化上向中深孔高分层充填法爆破方案优化分析[J].采矿技术,2015,15(6):95-97.
[2]傅国平.大冶金卢矿区铜多金属矿床地质特征及矿床成因分析[J].矿业工程,2016,14(6):6-8.
[3]周少颍,汪海波,宗琦.直眼掏槽爆破中大直径中空孔作用机理研究[J].煤矿爆破,2014(1):23-25.
[4]宗琦,邵连军.立井深孔直眼掏槽大直径中心空孔作用分析和参数计算[J].爆破,2015(1):11-15.
[5]李清,郭阳,刘航,等.切槽定向断裂控制爆破的数值模拟研究[J].矿业研究与开发,2015(12):79-83.
[6]邓飞,韩小亮,尹丽冰,等.邻近巷道爆破对既有巷道影响的数值模拟研究[J].矿业研究与开发,2015(11):74-79.
[7]中华人民共和国国家质量监督检验检疫总局,中国国家标准化委员会.GB 6722—2014爆破安全规程[S].北京:中国标准出版社,2015.
[8]李雨波,李艳刚,韩全,等.中深孔分段分期充填采矿在大梁山矿业的应用[J].采矿技术,2016,16(3):5-7.
[9]胡浩川,明悦,赵明生,等.爆破地震波穿越结构面振速叠加效益分析[J].矿业研究与开发,2016(5):50-54.
[10]徐全军,龙源,张庆明,等.微差爆破振动叠加起始位置数值模拟[J].力学与实践,2000,22(5):45-48.
[11]陈能革.基于侧向爆破漏斗试验的高村采场爆破参数优化[J].现代矿业,2016(10):8-10.
[2]傅国平.大冶金卢矿区铜多金属矿床地质特征及矿床成因分析[J].矿业工程,2016,14(6):6-8.
[3]周少颍,汪海波,宗琦.直眼掏槽爆破中大直径中空孔作用机理研究[J].煤矿爆破,2014(1):23-25.
[4]宗琦,邵连军.立井深孔直眼掏槽大直径中心空孔作用分析和参数计算[J].爆破,2015(1):11-15.
[5]李清,郭阳,刘航,等.切槽定向断裂控制爆破的数值模拟研究[J].矿业研究与开发,2015(12):79-83.
[6]邓飞,韩小亮,尹丽冰,等.邻近巷道爆破对既有巷道影响的数值模拟研究[J].矿业研究与开发,2015(11):74-79.
[7]中华人民共和国国家质量监督检验检疫总局,中国国家标准化委员会.GB 6722—2014爆破安全规程[S].北京:中国标准出版社,2015.
[8]李雨波,李艳刚,韩全,等.中深孔分段分期充填采矿在大梁山矿业的应用[J].采矿技术,2016,16(3):5-7.
[9]胡浩川,明悦,赵明生,等.爆破地震波穿越结构面振速叠加效益分析[J].矿业研究与开发,2016(5):50-54.
[10]徐全军,龙源,张庆明,等.微差爆破振动叠加起始位置数值模拟[J].力学与实践,2000,22(5):45-48.
[11]陈能革.基于侧向爆破漏斗试验的高村采场爆破参数优化[J].现代矿业,2016(10):8-10.