中深孔一次成槽法在松软破碎矿岩中的应用  

Successful Application of Deep Hole Primary Grooving Method In Soft Broken Ore And Rock Without Cutting Well

作　　者：艾树贤 AI Shu-xian(Tianyi Mining Co.,Ltd.,Jiangxi Copper Corporation Limited,Guixi 335424,Jiangxi,China)

机构地区：[1]江西天億矿业有限公司,江西贵溪335424

出　　处：《铜业工程》2020年第1期25-27,共3页Copper Engineering

摘　　要：切割拉槽是有(无)底柱分段崩落法重要的采矿工艺之一,拉槽质量的好坏严重影响爆破回采效果,但松软破碎矿体的采场由于施工安全条件差,普通的切割拉槽法不仅施工困难、工人劳动强度大、效率低、成本高,而且质量难以保证,无切割井中深孔爆破一次拉槽法是一种安全、高效、简便、可靠的切割方法,具有广泛的推广应用价值。Cutting groove is one of the important mining technologies with(without)bottom pillar sublevel caving method,and the quality of groove seriously affects the blasting mining effect,but because of the poor construction safety conditions of soft broken orebody,the ordinary cutting and drawing method is not only difficult to construct,but also difficult to guarantee the labor intensity,low efficiency and high cost of workers.The primary drawing method of middle-deep hole blasting without cutting well is a safe,efficient,simple and reliable cutting method,which has a wide range of popularization and application value.

关 键 词：松软破碎矿体 中深孔 无切割井拉槽 非电秒差雷管 补偿空间系数 

分 类 号：TD8[矿业工程—矿山开采]