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介绍了水布垭导流洞进口段施工中采用的深孔爆破、潜孔钻梯段爆破、台阶分步开挖、超前管棚等施工技术 ,其成功经验对今后类似工程具有参考价值
The construction techniques of deep-hole blasting, down-hole drilling blasting, step-by-step excavation and advanced pipe shed construction are introduced in the construction of the inlet section of the diversion tunnel. The successful experience is of reference value to similar projects in the future