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以小浪底北岸灌区一干渠隧洞为例,分析小型水工隧洞开挖、衬砌中的影响因素,针对小型隧洞如何选择开挖、衬砌施工方案;重点探讨软岩、地下水、狭小施工作业空间在小型隧洞开挖、运输出渣、混凝土衬砌中的影响,评价现场应对措施的优缺点,分析应对措施其对质量、进度、成本影响;为同类隧洞施工方案选项提供借鉴。
Taking Xiaolangdi Northern Irrigation District of Yiqian Canal tunnel as an example, the paper analyzes the influencing factors of small hydraulic tunnel excavation and lining, and chooses how to choose excavation and lining construction plan for small tunnels. It also focuses on the application of soft rock, groundwater and small construction work in small tunnels Excavation, transportation of slag, the impact of concrete lining, evaluation of the advantages and disadvantages of on-site response measures, analysis of the impact of its response to the quality, schedule and cost; provide reference for similar tunnel construction options.