屈家山矿上下中段合理爆破安全距离的确定和实践

The Determination of Reasonable Explosion Safety Distance and Practice for Upper,Middle,and Lower Sections in Qujiashan Ore

根据爆破现场产生的实际问题,详细研究了爆破震动对上下中段的影响程度及范围,计算并确定上下中段的合理爆破安全距离及采空区引起岩层移动范围。通过近5年的生产验证,目前屈矿所取得的爆破安全距离合理,用来指导公司安全生产效果明显。

According to the practical problem generated in explosion,the paper studies in detail the impact degrees of impact degrees on upper,middle,and lower sections,and the relevant scope.The calculation and determination is carried out for the reasonable and safe exploding distance for upper,lower and middle sections and the scope of rock strata movement due to goaf impacting.Through the verification of production in recent five years,the current safe explosion distance is reasonable in Qujiashan ore.The effect of instructing the company＇s safe production is obvious.