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露天矿山复杂地质条件下边坡预裂爆破技术应用探讨

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由于靠界边坡地理环境和地质条件限制,不能按正常情况下布置主爆孔、缓冲孔和预裂孔,且爆破区域正处于不同岩层性质交界面,也不能按照正常情况下预裂爆破方案进行布孔和装药,对预裂爆破孔网参数和装药量等设计和施工质量提出了更高的要求.通过在矿山现场进行多次预裂爆破实践,采用控制变量法,通过优化孔网参数、调整装药结构和起爆网路等,最终得到了较好的边坡控制爆破效果.
Discussion on Application of Slope Pre-splitting Blasting Technology in Open-pit Mine under Complex Geological Conditions
Due to the the limitations of geographical environment and geological conditions of the boundary slope,it is not possible to arrange the main blasting holes,buffer holes,and pre-splitting holes under normal conditions,and the blasting area is located at the interface of different rock layers.Therefore,it is not possible to arrange and charge the holes according to the normal pre-splitting blasting scheme,which puts higher requirements on the design and construction quality of the pre-splitting blasting hole network parameters and explosive load.Through multiple pre-splitting blasting practices at the mining site,the control variable method is used to optimize the parameters of hole network,and adjust the structure of explosive charging and blasting network,etc.,and a good slope control and blasting effect is finally obtained.

open-pit mineslope treatmentpre-splitting blasting

姚金宝

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宁夏天宏爆破有限公司,宁夏 银川 750000

露天矿山 边坡治理 预裂爆破

2024

矿业工程
中冶北方工程技术有限公司,中国冶金矿山企业协会

矿业工程

影响因子:0.282
ISSN:1671-8550
年,卷(期):2024.22(2)