Ground Freezing Design and Construction of Subway Cross Passage with Super Deep Depth
WANG Shu-lei
Abstract：No.2 cross passage and pumping station project between Fuxing Island Station and Lijin Road Station metro of No.12 Line of Shanghai Metro System was super deep in the depth ,complicated in geological condition and high difficult in the design and construction .With a full verification and fine design of the construction plan ,a horizontal ground freezing reinforcement +mine underground excava‐tion method was applied to the construction. The freezing wall stressed was calculated with a finite ele‐ment method and structure mechanics method.A borehole pattern of the freezing borehole was conduc‐ted with a bilateral drilling. A powerful horizontal drilling rig was applied to the borehole. Finally a thaw settlement grouting and segment backfill grouting was conducted. The project safety was reliable and the effect was good.
Keywords：super deep depthcomplicated stratametro tunnelcross passageground freezing method
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 49-54,57 )