扎哈淖尔露天煤矿横采内排生产强度确定研究
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摘要
为了解决扎哈淖尔露天煤矿面临的内排空间小、运输距离大、边坡暴露时间长等问题,分析了Ⅳ煤组的赋存条件,提出了露天矿底部横采内排追踪压帮的开采技术,设计了台阶划分方式以及工作线布置方式,并从设备能力约束、煤质均衡约束、内排空间约束三个方面,综合确定了扎哈淖尔露天煤矿横采内排的生产强度为年开采Ⅳ煤480万t,推进度350m/a左右。
In order to solve such problems as small internal dumping space,long transport distance,and long exposure time of slope,the geological conditions of Ⅳ coal seam were analyzed,the mining technology which called cross mining and internal dumping with burying slope was proposed,the benching methods and working line layout were designed. Then the production intensity for cross mining and internal dumping in Zhahanaoer surface mine was synthetically determined in terms of equipment capacity,coal quality balance and internal dumping space. The exploitation amount of Ⅳ coal seam is4. 8 Mt/a,and the advance rate of cross mining work line is about 350 m/a.
In order to solve such problems as small internal dumping space,long transport distance,and long exposure time of slope,the geological conditions of Ⅳ coal seam were analyzed,the mining technology which called cross mining and internal dumping with burying slope was proposed,the benching methods and working line layout were designed. Then the production intensity for cross mining and internal dumping in Zhahanaoer surface mine was synthetically determined in terms of equipment capacity,coal quality balance and internal dumping space. The exploitation amount of Ⅳ coal seam is4. 8 Mt/a,and the advance rate of cross mining work line is about 350 m/a.
引文
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[2]路占元,董向忠,丛德俊.深露天煤矿窄坑平移横采-汽车内排开采程序[J].黑龙江科技大学学报,2007,17(4):259-261.
[3]郑友毅,薛应东,曹兰柱.倾斜煤层深凹露天矿深部开采关键技术研究[J].采矿与安全工程学报,2009,26(4):494-498.
[4]白润才,薛应东,李三川.平庄西露天矿深部陡帮横采内排方案研究[J].露天采矿技术,2008(S1):2-4.
[5]王博文,才庆祥,周伟,等.基于边坡时效性的露天煤矿端帮靠帮开采[J].煤炭工程,2010,42(4):9-11.
[6]周永利,罗怀廷.端帮陡帮开采技术在哈尔乌素露天煤矿的应用[J].煤炭工程,2016,48(3):11-14.
[7]汪忠海.横采纵剥采矿方法的研究与应用[J].矿业工程,2009,7(4):22-24.
[8]姜科,李长征,钟小宇.倾斜分条扩帮开采工艺在大孤山铁矿的应用[J].矿业工程,2003,1(3):28-32.
[9]付恩三,白润才,刘光伟.倾斜煤层露天矿纵采转横采排土场建设发展研究[J].露天采矿技术,2016,31(9):5-9.