Research on Settlement Control of Shield Tunnel Undercrossing the Moat Bridge
In the process of urban rail transit construction,shield tunneling through urban rivers and bridges has the characteristics of poor hydrogeological conditions,high environmental risks,and strict settlement control.It is a key research object in crossing engineering.This article takes a new construction project in a certain city as the background,and conducts research on the settlement control of a shield tunnel crossing a city bridge through mutual verification of numerical calculation and on-site monitoring.By studying the ground grouting reinforcement before crossing,controlling the excavation parameters during the crossing process,and grouting a series of settlement control technologies after crossing the pipe wall,and verifying with the settlement monitoring data of the bridge,the construction safety of the underpass and the operational safety of the existing bridge are ensured.This research achievement can provide reference for similar underpass projects.
万方数据
维普
