Application of the Pre-Grouting Reinforcement Technology in Construction of Connected Aisle in Metro Tunnel by Freezing Method
ZHANG Peng
JIANG Zun-tao
Abstract：The freezing method application of connected aisle in metro tunnel has received more and more attention.In the construction ,dangers easily happen in drilling holes and installing freezing pipes ,especially in poor geological conditions stratum ,it even causes construction accident.The sec‐tion contact passage between Zhenbei Road Station and Daduhe Road Station of Shanghai Metro Line 13 lies in ancient stream channel ,in shield driving process ,the maximum settlement of ground subsid‐ence and pipelines w as approximately 90mm.Based on consideration of the surrounding environment security ,before freeze construction ,pre-grouting reinforcement technology was used in stratum treat‐ment ,after that ,the engineering project of drilling holes and installing freezing pipes went smoothly , and drifting sand and water gushing did not happen.
Keywords：connected aisle in metro tunnelfreezing methodancient stream channelpre-grouting re-inforcement
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 30-32,42 )