Research On The Stability Analysis And The Risk Assessment Of Beijing-Zhuhai Highway North K46

China's vast land is also very complex terrain in the mountains along the slope during construction of the project will form and meet a lot of slope problems. Some of the high and steep slope, generated landslide damage during the construction, which is ofen the focus in highway construction and control engineering in highway construction. In this paper, the mountains from Beijing to Zhuhai Expressway Slope encountered this problem, from the slope of disaster risk assessment systems, slope stability analysis and evaluation of side slope effect of the three aspects of analysis and research.1,System and analyzed the engineering geological condition's information of the slope of the Beijing-Zhuhai North K46. Including topography, meteorology and hydrology, lithology, geological structure, hydrogeology, poor geological phenomena and seismic information,preparing for the next slope stability analysis and risk assessment.2,Comprehensing the comparative analysis of various risk assessment methods, selection using AHP and the Combination of fuzzy comprehensive evaluation method to establish the slope landslide risk assessment system. And the Beijing-Zhuhai North K46 slope, for example, were carried out vulnerability and disaster risk assessment, and gained the risk level of the slope.3,Beijing-Zhuhai North K46 slope stability analysis by limit equilibrium method and FLAC-3D simulating of the slope of the excavation process. Detailed analysis of change in the sliding process of displacement and shear strain rate.Based on the analysis of the both methods, summarized the reasons for the slope each slide.4,The paper established eighe criteria for the evaluation system,which for evaluing the effectiveness of repellent,and slope of the Beijing-Zhuhai North K46, for example, using the standard system to evaluate the effectiveness of its governance, to verify the Evaluation system is correct and is practical.The results of this study can provide theoretical reference for future similar projects.