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Based on Changshen Expressway Chengde - Chengtang TJ12 Section Anziling Tunnel No. 1 Project,the article sums up the construction technology of the double-continuous-arch tunnel.This construction technology breaks the normal procedure and innovates courageously,and under the premise to guarantee the security and quality,speeds up the construction schedule,breaks the bottleneck restriction in the construction network diagram so as to economize the national investment and to achieve the social and economic benefits.