条形药包峒室水封爆破在土石方开挖中的应用

Application of hydraulic chamber blasting with bar charge in earth-stone dig

条形药包峒室爆破广泛用于矿山露天的剥离 ,铁路、公路、水电等基建工程土石方的开挖。为了满足工程进度要求 ,在福建省晋江市体育中心西广场基建平基土石方开挖中 ,采用条形药包为主 ,点药包与条形药包相结合 ;峒室普通爆破与峒室水封爆破相结合 ;峒室松动爆破与峒室加强松动爆破相结合的控制大爆破技术 ,该技术获得圆满成功 ,并达到了快速、安全、效果好的要求。

The chamber blasting with bar charges is used in rock dig of openpit, railway road, hydroelectric industry and other projects. This paper introduces an example about urban controlled blasting by applying bar charge primarily, combining spot charge and bar charge, and combining common chamber blasting and hydraulic chamber blasting, combining chamber blasting for loosening and chamber blasting for fortifiying loosening, meet with success. High-speed, safety, good blasting results bave been obtained.