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本文介绍莲花山隧道(左线)Ⅳ、Ⅴ类围岩开挖时采用的光面爆破技术,以及其技术参数的采用。
This paper introduces the smooth blasting technology used in the excavation of Grade IV and V surrounding rock of Lianhuashan Tunnel (left line) and the adoption of its technical parameters.