结合某引水隧洞施工实例,就其施工方案作了论述,分别阐述了隧洞洞身段开挖、初期支护、二次混凝土衬砌的施工工艺及技术要点,同时积累了相关经验,以指导类似工程施工。%Combining with the construction example of water diversion tunnel,the article discusses the construction scheme,respectively describes the construction technology and technological points of tunnel excavation,preliminary support,secondary concrete masonry,and simultaneously accumulates relevant experience,so as to guide the construction of similar engineering.
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