ABSTRACT
With the rapid development of urban construction in China, tunnel construction will become an important part of urban underground space development in the 21st century. The shield method is widely used in urban tunnel construction because of its obvious advantages such as strong stratum adaptability, high speed, and guaranteed construction quality. Shield construction will inevitably disturb the surrounding soil, causing stratum movement and deformation, which is most directly manifested as surface subsidence or uplift. Therefore, it is necessary to effectively predict the ground deformation caused by shield tunnel construction in order to formulate corresponding control measures to prevent engineering accidents. There are many influencing factors of shield tunnel geological deformation, which are nonlinear and difficult to predict, so it is necessary to choose an effective prediction method. Geological deformation prediction of shield tunnels plays a key role in improving the reliability of shield tunnel construction. Based on the multi-source information fusion method, this paper studies the prediction of stratum deformation caused by tunnel shield construction and constructs the calculation model of geological deformation of shield tunnels.
