Influence of Foundation Layer Strength on Slope Stability When Water Level Drops Slowly

Abstract

Construction projects for construction, railway, highway, water conservancy, and urban infrastructure will involve the problem of slope stability without exception. Slide loss will not only affect the normal use of the building, but also cause significant losses to human life and property. Therefore, the analysis of the stability of the slope has very important theoretical significance and practical value.There are two main analysis methods of slope stability. The limit balance method and strength discount of the finite element method. However, most of the landslide stability analysis used in practice still uses the limit balance of the basis of the basics of decades of unchanged slices. Law. This article mainly uses the finite element method for numerical simulation. The finite element software Slope 64 is used to establish a data model and iterates to calculate the results, and the results are obtained, and further analysis is made to provide the theoretical foundation for future practical applications. Analyze the average slope and the stability change trend, the laws of stability coefficient, and the rules of damage when the water level decreases slowly. The finite element method can take into account the geometric shape of the slope that cannot be considered, the model and non -linear loading of the soil body, and the non -linear loading. The strong slope stability analysis method has high accuracy and high accuracy, and requires less assumptions, especially in terms of destroying the mechanism.In the end, with the slow decline in the water level, there is a certain trend of the security factor of the slope. Generally, the lowest point will occur first and then there will be a short period of time. The safety factor of completely drowned slope is not affected by the depth of water above the top. The stability of the sub -slope is higher than the stability of the slope. As the strength of the basic layer increases, the stabilization coefficient of the slope is unchanged when the water level slowly decreases, but the water level of the lowest stability coefficient continues to rise, and the base layer strength increases to the stable coefficient size of the slope when the slope is increased to a certain value. The stability coefficient of the average slope of changes and the slow decrease in the water level tends to be consistent.