The Key Technology of Large Diameter Shield Tunn...
At present，the difficulty of large diameter shield tunnel crossing embankment construction is mainly manifested as stratum settlement，collapse，endangering existing buildings around.At the same time，when large-diameter slurry shield is constructed in urban river-crossing tunnels，the river bank of the city is often the central area，and it is also an important barrier for urban flood control，which is related to the safety of people's lives and property.Therefore，it is very important to ensure the stability of the embankment during shield construction.This chapter first introduces the influence on the stability of the embankment when the shield passes through the embankment construction，and focuses on the construction control technology of the shield crossing the embankment，including the control of the tunneling parameters，the grouting management behind the wall and the mud management，and introduces the deformation monitoring and reinforcement technology of the embankment.