Time Sequence Analysis And Numerical Simulation Of Deformation And Subsidence Monitoring Data Of Shenyang Metro

Along with the continuous progress of the construction engineering technology, the construction of the foundation pit engineering is becoming more and more extensive. Subway construction is the rapid development of underground construction engineering. By the rapid growth of urban population, the limited ground space to adapt to the development of human pursuit of the pace of development. So the development of underground space is more and more urgent. Shenyang city is the leading city of the old industrial area in Northeast China, The pressure of the traffic is becoming more and more obvious. The development of metro construction has become an effective way to solve the traffic problems. In view of the characteristics of soil in Shenyang City, during the subway construction, the ground and buildings near the subway will have different degrees of settlement. So it is very important to study the law of ground subsidence caused by subway construction and the research of the deformation and settlement of surrounding buildings in Shenyang area. The construction operation of the subway tunnel is bound to produce a disturbance to the soil. The ground subsidence caused by the underground tunnel will affect the underground pipelines and ground buildings. If the ground subsidence reaches a certain level, it will affect the normal use of the underground pipelines and buildings. Deformation and settlement calculation is one of the main problems in geotechnical engineering. Due to the limitations of various theoretical calculation methods and the complexity of engineering geological conditions,it is very important to predict the settlement of the late stage by the predict measurement. Based on this issue,this article mainly carries on the following several aspects of the work.(1) The development history of the research on the subway subsidence is described in detail.Research status of settlement deformation analysis. Including field test, model test and numerical analysis.Mechanism analysis of ground subsidence caused by subway construction. On the basis of the relevant references, the factors affecting the ground subsidence caused by Shenyang subway construction are analyzed. A preliminary analysis of the influence factors of ground subsidence caused by the construction of Shenyang Metro. Preliminary study on the law of the settlement. The mechanism and factors of the ground subsidence caused by metro construction are summarized systematically.(2) Taking Shenyang metro line city square- Street Youth line interval right Shenyang Golden Corridor section 5 settlement monitoring data based on time series,the analysis of the scientific analysis of the settlement monitoring data by using the time series analysis method,establish time series analysis model. Then, the model is used to predict the settlement monitoring data of a set of measured data, and the prediction accuracy of the model is determined.(3) Using ANSYS finite element software, the parameters of the interval tunnel engineering are used to establish the numerical simulation test scheme. By taking a combination of load values and strata physical and mechanical parameters, the values of displacement and surface settlementof metro tunnel are calculated and analyzed. Build up the corresponding input and output relationship. Mechanism analysis of deformation and ground settlement of Metro Tunnel.