大倾角煤层无人工作面深孔爆破落煤参数设计  

Parameter Design of Coal Falling by Deep Hole Blasting in Unmanned Working Face in Steep Seam

作　　者：韩亮[1] 曲效成 刘聚友 彭瑞[1] HAN Liang;QU Xiao-cheng;LIU Ju-you;PENG Rui(Safety Engineering College,North China Institute of Science and Technology,Beijing 101601,China;Beijing Anke industrial Polytron Technologies Inc,Beijing 102200,China;Shanxi LinBei Coal Industry Development Co.,Ltd.,Baoji 721505,China)

机构地区：[1]华北科技学院安全工程学院,北京101601 [2]北京安科兴业科技股份有限公司,北京102200 [3]陕西麟北煤业开发有限责任公司,宝鸡721505

出　　处：《爆破》2020年第2期30-34,共5页Blasting

基　　金：中央高校基本科研业务费资助(3142017092);国家自然科学基金(51804119)。

摘　　要：为解决大倾角煤层的安全高效开采难题,提出大倾角煤层无人工作面开采工艺,并引入深孔爆破技术实现工作面落煤。根据现场情况开展了深孔爆破落煤试验,以装药量平衡原理为基础,对爆破参数进行了设计。爆破效果表明:爆堆分布集中,大部分煤体抛掷距离不超过1 m;爆破块度较均匀,基本分布在100~300 mm,验证了爆破参数的合理性。设计成果可为后续生产积累重要的实践经验,也可供其他项目参考借鉴。In order to realize safe and efficient mining of steep seam,the mining technology of unmanned working face in steep seam is put forward,and the deep hole blasting technology is introduced to realize the coal caving of working face.Based on the principle of charge balance,the blasting parameters are designed.The blasting results show that the blasted coal piles present a concentrated distribution.And the throwing distance of most coal body is no more than 1 m.In addition,the blasting fragmentation is relatively uniform,basically distributing within 100~300 mm,which verifies the rationality of the blasting parameters.The design of this project can provide important practical experience for follow-up productions,or be used for reference by other projects.

关 键 词：大倾角煤层 深孔爆破 落煤 爆破参数 爆破效果 

分 类 号：TD235.3[矿业工程—矿井建设]