立井液体乳化炸药机械化装药施工技术研究  

Research on Mechanized Charging Construction Technology of Vertical Shaft Liquid Emulsion Explosive

作　　者：陶银柱 TAO Yinzhu(Tongguan Mine Construction Co.,Ltd.of Tongling Nonferrous Metals Group,Tongling,Anhui,244000,China)

机构地区：[1]铜陵有色金属集团铜冠矿山建设股份有限公司,安徽铜陵244000

出　　处：《工程建设（维泽科技）》2023年第12期79-82,共4页Engineering Construction

摘　　要：哈萨克斯坦VCM竖井项目于2021年8月5日开始进入基岩段凿井,使用凿岩爆破方式进行井筒下掘作业,由于受到当地法律法规的约束,由现场中方人员进行凿岩作业,当地爆破公司进行爆破作业,火工器材由爆破公司购买、运输、存储和使用。2021年8月至10月使用卷装乳化炸药进行井筒爆破作业,爆破后存在较多的盲炮、哑炮,爆破效率低下,爆破后大块产出率高等问题,自2021年11月开始使用液体乳化炸药进行井筒爆破作业。VCM立井设计井深742.6m,净直径7m,井深0--80m为钢筋混凝土结构,其余段为素混凝土结构,混凝土厚度分别为500mm和450mm,混凝土强度为B30。The VCM vertical shaft project in Kazakhstan began drilling in the bedrock section on August 5,2021,using rock drilling and blasting methods for shaft excavation operations.Due to local laws and regulations,Chinese personnel on site were responsible for rock drilling operations,while the local blasting company was responsible for blasting operations.The pyrotechnic equipment was purchased,transported,stored,and used by the blasting company.From August to October 2021,rolled emulsion explosives were used for wellbore blasting operations.After blasting,there were many blind shots and dumbbells,resulting in low blasting efficiency and high yield of large blocks.Liquid emulsion explosives have been used for wellbore blasting operations since November 2021.The design depth of the VCM vertical shaft is 742.6m,with a net diameter of 7m.The shaft depth is 0-80m,which is a reinforced concrete structure.The remaining sections are plain concrete structures,with concrete thicknesses of 500mm and 450mm respectively,and the concrete strength is B30.

关 键 词：立井 装药机 液体乳化炸药 

分 类 号：TD235.212[矿业工程—矿井建设]