Abstract:
During the construction of TianqiaoYongdingmen interval tunnel on Beijing metro Line 8, the shield machine needs to pass beneath the side of Yandun, a historical protection building. In order to study the stratum deformation, the structural stress and deformation of Yandun caused by the shield construction, the dynamic construction process of shield machine side passing beneath Yandun are simulated by means of numerical analysis software. On this basis, corresponding stratum reinforcement and the shield tunneling control measures are put forward. As revealed by the field monitoring results, after taking relevant prevention and treatment measures, the structural deformation of Yandun structure and the surrounding environment are effectively controlled.