引额济克工程软岩爆破成洞技术

Cavitation Technoque in Soft-Formation by Blasting

引额济克引水隧道围岩软弱 ,爆破开挖难度大。采用预裂爆破技术、合混型掏槽方式及其相应的爆破参数 ,使隧道成洞获得了良好效果。

The soft-formation of diversion tunnel surrounding strate in the project of diverting-E river-to-ke river makes it difficult to excavate in blasting. The presplit blasting and composite slotting type and their relevant blasting parameters are adopted to achieve excellent effectiveness in this paper.