Study on Blasting Effect with Pre-Assessment Borehole Status by Inserting Real-time Bore Hole Endoscope Verification
By inserting a Borehole Endoscope beforehand charging explosives, could be sought overall status of boreholes and found weak points such as fractures or direction of joints. So it is possible to reflect weak points on some blasting work. In this study, using borehole endoscope to find typical weak points of boreholes first and considered each borehole condition to reflect blasting design. Each faulty zone, located in the interval of charge where in a mine, was replaced air deck charge method by self support Air-Tubes. Reduction of charge with overall improvement of blast effects and economic benefit occurred. Thus this study has shown new possibilities throughout small-scale blasting to large-scale in limestone mine.
D.W.Kang W.H.Hur
Dep.Of Energy & Mineral Eng.Dong-A Univ., Busan, Korea
国际会议
厦门
英文
392-397
2011-08-10(万方平台首次上网日期,不代表论文的发表时间)