Slope Stability based on Grey Prediction Model 

Yi Jun XIAO 

School of Civil Engineering & Architecture , Chongqing Jiaotong University, Chongqing, 400074, CHINA 

Abstract: For the factors affecting the stability of subgrade slope has the complexity and uncertainty, this article described the grey theory firstly, and forecast the slope stability coefficient through the establishment of grey model, get the estimates of the next stability coefficient of slope detection. Finally, we analysis and compare the estimates thought the application example, and find it meet the actual situation. The topic of this thesis is to consider the application of grey theory to soil slope stability analysis, slope engineering systems is considered to belong to the grey system category. Starting from grey GM(1,1)modeling ideas, introduces the basic principles, basic content and calculation methods of grey system theory. Application grey system theory to study the soil slope stability just starting out, though displacement monitoring data of a slope which located at the Bi-Wei highway, establishment two GM(1,1)model which one is during the slope support, the other one is after completion of slope support. 

Keywords: The slope stability; Grey model; The stability coefficient