大孔径浅孔爆破在工程中的实际应用及效益分析  

Practical Application and Benefit Analysis of Large Diameter Short-Hole Blasting in Engineering

作　　者：刘轶伦[1] Liu Yilun(Jiangsu Mining Engineering Group Co.,Ltd.,Xuzhou,Jiangsu 221000)

机构地区：[1]江苏省矿业工程集团有限公司,江苏徐州221000

出　　处：《工程技术研究》2020年第8期92-93,共2页Engineering and Technological Research

摘　　要：在连徐铁路DK178+605~DK179+005区间路堑石方开挖工程中,需要对该区间3~4.5m不等厚度的岩层进行快速安全的爆破开挖。综合考虑施工现场环境,决定在该项目中采用大孔径浅孔爆破的方法,全部采用潜孔钻机钻孔,一个台阶爆破施工即可开挖至设计标高。该方法克服了使用传统小孔径浅孔爆破法效率低、易形成飞石的缺点,最终满足了该工程工期、质量和安全的需要。In order to carry out fast and safe blasting excavation for the rock cutting excavation of section DK178+605-DK179+005 of lianxu railway,by introducing the method of large diameter short-hole blasting,the down-hole drilling machine is used to drill holes,and one step blasting construction can be excavated to the design elevation,so as to overcome the effect of traditional small hole shallow hole blasting method Because of its low rate and easy formation of flying stones,it finally meets the needs of the project duration,quality and safety.

关 键 词：大孔径 浅孔 爆破 

分 类 号：TD235[矿业工程—矿井建设]