建材世界
建材世界
건재세계
THE WORLD OF BUILDING MATERIALS
2014年
2期
140-142
,共3页
石灰石矿山%中深孔%V型逐孔起爆%大块率%飞石%爆堆形态
石灰石礦山%中深孔%V型逐孔起爆%大塊率%飛石%爆堆形態
석회석광산%중심공%V형축공기폭%대괴솔%비석%폭퇴형태
limestone mine%medium-length hole%V-type hole-by-hole delay initiation%boulder yield%fly-rock%shape of muck pile
为改善爆破效果,减小飞石距离,降低大块率,使爆堆更加集中,江油红狮水泥有限公司在理论计算的基础上,进行了多次现场爆破试验。试验结果表明,在合理的爆破参数下,V 型逐孔起爆技术与后倾式逐孔起爆技术相比,在爆破效果、爆破安全和经济效果方面有较明显的改善。该矿山最佳的起爆网路为 V型逐孔起爆,孔间延期时间为25 ms(控制孔为17 ms),排间延期时间为65 ms。
為改善爆破效果,減小飛石距離,降低大塊率,使爆堆更加集中,江油紅獅水泥有限公司在理論計算的基礎上,進行瞭多次現場爆破試驗。試驗結果錶明,在閤理的爆破參數下,V 型逐孔起爆技術與後傾式逐孔起爆技術相比,在爆破效果、爆破安全和經濟效果方麵有較明顯的改善。該礦山最佳的起爆網路為 V型逐孔起爆,孔間延期時間為25 ms(控製孔為17 ms),排間延期時間為65 ms。
위개선폭파효과,감소비석거리,강저대괴솔,사폭퇴경가집중,강유홍사수니유한공사재이론계산적기출상,진행료다차현장폭파시험。시험결과표명,재합리적폭파삼수하,V 형축공기폭기술여후경식축공기폭기술상비,재폭파효과、폭파안전화경제효과방면유교명현적개선。해광산최가적기폭망로위 V형축공기폭,공간연기시간위25 ms(공제공위17 ms),배간연기시간위65 ms。
In order to improve blasting effects,decrease the distance of the fly-rock,reduce the boulder yield and make the muck pile more concentrated,Jiangyou Hongshi cement Co,Ltd has carried out a site of field blasting test based on the theoretical calculations.The result shows under the reasonable blasting parameters V-type hole-by-hole delay initiation technology is better than backward-type hole-by-hole delay initiation technology on blasting effects, blasting safety and economic effects.The best initiation technology of this mine is V-type hole-by-hole delay initiation technology,and the delay between holes is 25 ms,the delay of control hole is 17 ms and the delay between rows is 65 ms.
