超深孔控制爆破在宝泉电站路堑开挖中的应用与探讨

Application of Extra-deephole Controlled Blasting in Cut Excavation for Baoquan Power Station

宝泉电站路堑超深孔爆破,处于复杂环境中,对环保要求严格,对爆破震速、飞石、爆堆坍塌距离等控制严格,爆破设计与施工难度较大,成功地探索了超深孔爆破控制技术,突破了小孔径、小台阶控制爆破的常规。

Due to complex surroundings the exta-deephole controlled blasting is required to strictly control the vibration velocity, flyrocks and collapse distance of muckpile, so it is difficult to design and implement the blasting. An extra-deep-hole controlled blasting technology is successfully put forward, and it surpasses the normal small hole and small bench controlled blasting.