The tension and settlement deformation between immersed tube segments and sections are important indicators for structural safety of immersed tunnel project.Based on the Dalian Bay immersed tunnel,by analyzing the correlation between the hydrological environment,overlying load changes,special construction techniques,and the deformation of the tension and settlement of immersed tube elements,the variation law of immersed tube settlement under different load conditions was obtained.The tension between the tube segments and sections is negatively correlated with the temperature inside the tube,and the settlement deformation of immersed tube significantly increases after the steel strand is sheared for a period of time.It can provide a reliable basis for the subsequent installation and adjustment of the tube elements to ensure construction safety and guide subsequent design and construction.
关键词
沉管隧道/施工监测/沉降量/张合量/变形规律
Key words
immersed tunnel/construction monitoring/settlement/tension/deformation law
维普
万方数据