Monitoring And Aanlysis Of Slope Stability Of Maoxian Railway Station

Maoxian Railway Station is an important site of Chengdu-Lanzhou. It is located in the southeast of Maoxian County, it will play an important role as transit station. The slope of Maoxian station is an important protection engineering. It is prone to induce landslide because of complex engineering geological conditions, notable effect of earthquake and large differences in rainfall and centralized in the area. When the process of Excavation of it, Disturbance on the slope caused by the stress adjustment of the slope, it may lead to slope appear weak side and sliding. In order to prevent sliding or deformation, we should monitor it.we can analysis disturbance of slope by result and provide some guidance for Slope Construction. Necessary information for safety. Simultaneously slope monitoring can provide the necessary field data for the slope engineering design and optimize it.The article is based on the slope monitoring system layout on the slope of Maoxian station and monitor the entire slope of construction. Monitoring content mainly includes Surface displacement monitoring, Reactance internal force monitoring, Earth Pressure Monitoring, Prestressed anchor Detection and so on. Through monitoring, Analysis of slope deformation during construction. Stress adjustments and Stabilizing piles force.We deal with the result of them. Analysis of the surface displacement changes and trends, and earth pressure, reinforced and prestressed anchors stress changes in the construction process. Calculated by internal force monitoring data against sliding pile force. Analysis of Pile changes in the forces. While using ANSYS finite element software slope stress and deformation in a natural, excavation and maintenance of state were simulated.The results showed that the surface monitoring stations in Maoxian slope excavation so that the line side to deform, and the deformation is smaller. And the result of reinforced earth pressure cell count monitoring shows the force before the pile of soil excavation force has increased anti-slide pile. Its maximum design value for the moment about two-thirds. Anti-slide pile and played a supporting role in the work of state security. Prestressed anchor test showed that Cable appears part of stress, loss rate of about 5%-15%,and Cable has played a supporting role.Numerical simulation results show that the slope of the natural state of the slope is stable, it is Easy to slide along the rock slope under excavation interface state, And cut excavation Poe, While the excavation face occurs collapse phenomenon. Supporting simulation results indicate that the anti-slide pile played a supporting effect, Slope deformation is greatly suppressed, Stress can be a major adjustment, slope stability.