将光面爆破技术应用于紫木凼金矿主巷掘进爆破施工中,应用结果表明,开挖轮廓尺寸基本符合设计要求,欠挖不大于0.3 m,超挖不大于0.5 m;爆破后由于松软岩体破碎结构,巷道帮壁上较难保留半孔痕迹,但无大的危岩浮石;中等岩石存在半孔痕迹,无危岩浮石或很少危岩浮石.与普通爆破相比,围岩扰动减小,效果明显.
The application of smooth blasting in the excavation of main drift in Zimudang Gold Mine obtained an outline that basically agrees with design requirements with insufficient excavation not more than 0 .3 m and excessive excavation not more than 0.5 m.Due to the tatter structure of loose rock bodies after blasting,trace of semi-hole is hard to remain in the drift walls and there are no big loose rocks; trace of semi-hole can be found in medium-sized rocks and there are few,if any loose rocks.Compared to ordinary blasting,smooth blasting makes mitigated wallrock disturbances.
参考文献
| [1] | 张辉.光面爆破的原理及工程应用[J].四川建筑,2009(06):213,216. |
| [2] | 崔庆龙;任姗姗;皇甫超华.光面爆破技术及其应用[J].科技致富向导,2010(11):10. |
| [3] | 陈国良 .光面爆破技术在不稳固岩体掘进中的研究和应用[D].广西大学,2008. |
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