隧道小导管预支护施工技术及材料选择分析

Analysis on construction technology and material selection for tunnel small pipe pre-support

小导管预支护施工是隧道施工过程中常见的施工工艺。文章结合工程实践,首先论述小导管预支护作用机理,并详细介绍在不同情况下小导管施工的处置措施和施工控制要点,给出不同情况下的小导管施工材料选择,以期为类似隧道小导管施工提供借鉴。

Small pipe pre-support construction is a common construction technology in the process of tunnel construction.Based on the engineering practice,this paper discusses the mechanism of small pipe pre-support,and introduces in detail the treatment measures and construction control points of small pipe construction under different conditions,and offers the selection of small pipe construction materials under different conditions,so as to provide reference for similar tunnel small pipe construction in the future.