逐孔起爆技术在胜利露天煤矿中的应用研究
发布时间：2018-09-04 06:25
【摘要】：目前,神华北电胜利露天矿大部分区域都采取电铲直接剥离和采掘的方式生产,这样不仅降低了生产效率,而且增加了设备的维修费用,为了提高经济效益,对该矿台阶爆破采取了逐孔起爆技术并对其进行了深入的研究。本文对神华北电胜利露天矿台阶进行了逐孔起爆数值模拟,通过应力分布云图,得出逐孔起爆技术作用原理,并通过分析爆破模拟生成的岩石所受的应力,得出了逐孔起爆技术的爆破效果优于排间微差爆破。通过正交试验的方法,对神华北电胜利露天矿逐孔起爆网络进行了优化,最终得出了神华北电胜利露天矿最优的爆破参数,并分析了该矿采用逐孔起爆技术后的爆破效果,经济效益以及环境保护效果。既为神华北电胜利露天矿实际爆破提供了科学依据,也为其它露天矿出现类似的情况提供了参考价值。
[Abstract]:At present, most areas of Shenhua North Electric Power Shengli Open-pit Mine are produced by direct stripping and mining of electric shovels, which not only reduces the production efficiency, but also increases the maintenance cost of the equipment. In order to improve economic efficiency, The blasting technology of step by hole in this mine is adopted and studied deeply. In this paper, the numerical simulation of borehole initiation is carried out on the steps of Shengli opencast mine of Shenhua North Electric Power Plant. By using the stress distribution cloud diagram, the working principle of the borehole initiation technique is obtained, and the stress of the rock generated by the blasting simulation is analyzed. It is concluded that the blasting effect of borehole initiation technique is better than that of millisecond blasting. By means of orthogonal test, the blasting network of Shenhua Beidian Shengli Open-pit Mine is optimized, and the optimal blasting parameters of Shenhua Beidian Shengli Open-pit Mine are obtained, and the blasting effect is analyzed after the use of hole-by-hole initiation technique in Shenhua Beidian Shengli Open-pit Mine. Economic benefit and environmental protection effect. It not only provides scientific basis for actual blasting in Shengli opencast mine of Shenhua North Electric Power Plant, but also provides reference value for similar situation in other open-pit mines.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD235
本文编号：2221280
[Abstract]:At present, most areas of Shenhua North Electric Power Shengli Open-pit Mine are produced by direct stripping and mining of electric shovels, which not only reduces the production efficiency, but also increases the maintenance cost of the equipment. In order to improve economic efficiency, The blasting technology of step by hole in this mine is adopted and studied deeply. In this paper, the numerical simulation of borehole initiation is carried out on the steps of Shengli opencast mine of Shenhua North Electric Power Plant. By using the stress distribution cloud diagram, the working principle of the borehole initiation technique is obtained, and the stress of the rock generated by the blasting simulation is analyzed. It is concluded that the blasting effect of borehole initiation technique is better than that of millisecond blasting. By means of orthogonal test, the blasting network of Shenhua Beidian Shengli Open-pit Mine is optimized, and the optimal blasting parameters of Shenhua Beidian Shengli Open-pit Mine are obtained, and the blasting effect is analyzed after the use of hole-by-hole initiation technique in Shenhua Beidian Shengli Open-pit Mine. Economic benefit and environmental protection effect. It not only provides scientific basis for actual blasting in Shengli opencast mine of Shenhua North Electric Power Plant, but also provides reference value for similar situation in other open-pit mines.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD235
【参考文献】
相关期刊论文 前10条
1 王明君;赵亮;;基于中深孔爆破技术的起爆方式研究[J];露天采矿技术;2015年03期
2 彭三九;;逐孔起爆技术在煤矿采矿作业中的应用[J];内蒙古煤炭经济;2015年02期
3 杨守涛;牟进城;武飞;;逐孔爆破技术在上河采场的应用[J];现代矿业;2015年01期
4 茅必贵;;逐孔起爆技术在婆乳岩电石灰岩矿山的应用实践[J];矿业装备;2014年05期
5 刘向科;王海亮;孙志果;孙松;;三种孔外延期导爆管起爆网路的工程试验研究[J];山东科技大学学报(自然科学版);2014年02期
6 张平;彭江湖;;V型逐孔起爆技术在多排中深孔爆破中的应用[J];建材世界;2014年02期
7 韦学忠;;预裂爆破技术在大峰露天煤矿边坡保护工程中的应用[J];露天采矿技术;2013年12期
8 陈少辉;张智宇;谢贤平;黄细荣;李新翰;;导爆管起爆网络的设计与分析[J];价值工程;2013年32期
9 张青成;王家磊;李德璇;刘伟斌;王向娟;;露天矿山爆破振动影响因素分析研究[J];辽宁工程技术大学学报(自然科学版);2013年10期
10 张成忠;王辉聪;林野;陈亚强;;煤矿采矿工程中逐孔起爆技术的应用[J];科技资讯;2013年29期
，本文编号：2221280
本文链接：https://www.wllwen.com/kejilunwen/kuangye/2221280.html
