Influence of Staged Cofferdam Construction of Tunnel on Adjacent Bridge
In order to study the influence of tunnel stage cofferdam construction on adjacent bridges,combined with engineering practice,the finite element method is used to model the river channel,bridge,cofferdam,retaining structure and main structure.The element birth and death method is used to simulate the tunnel construction,and the monitoring measurement is used to deepen the research.The displacement law of bridge caps at different positions under different construction conditions is summarized.By taking the reinforcement of the soil around the tunnel as a variable to carry out the displacement comparative analysis of the bridge cap,it is proved that the soil triaxial cement-soil mixing pile reinforcement has a good protection effect on the adjacent existing bridge during the construction of the tunnel cofferdam method.
万方数据
维普
