爆破
爆破
폭파
BLASTING
2010年
1期
54-57
,共4页
明渠开挖%大孔距爆破%预裂爆破%缓冲爆破
明渠開挖%大孔距爆破%預裂爆破%緩遲爆破
명거개알%대공거폭파%예렬폭파%완충폭파
open channel excavation%large hole spacing%pre-splitting blasting%buffer blasting
观音岩水电站右岸导流明渠开挖爆破工程对岩石块度级配和明渠边坡平整度要求严格.为此,在施工中分别采用了孔距与排距比值大于1.25的小低抗线宽孔距爆破、缓冲爆破和预裂爆破等技术.经实践,爆破效果达到了工程要求.
觀音巖水電站右岸導流明渠開挖爆破工程對巖石塊度級配和明渠邊坡平整度要求嚴格.為此,在施工中分彆採用瞭孔距與排距比值大于1.25的小低抗線寬孔距爆破、緩遲爆破和預裂爆破等技術.經實踐,爆破效果達到瞭工程要求.
관음암수전참우안도류명거개알폭파공정대암석괴도급배화명거변파평정도요구엄격.위차,재시공중분별채용료공거여배거비치대우1.25적소저항선관공거폭파、완충폭파화예렬폭파등기술.경실천,폭파효과체도료공정요구.
According to the exact demands of rock fragmentation grades and slope flatness of open channel in the open channel excavation blot engineering for right bank abstraction of Kwan-yinyan hydmpower station,advanced technique that buffer blasting、pre-slitting blasting and small burden and large hole spacing blasting which ratio of hole spacing and low spacing is greater than 1.25 are used during excavation.It is proved that blast effect has met demands.
