| After nearly two decades of rapid development,the expressway in Jiangxi has reached 6,000 kilometers by 2016.According to the requirements of the provincial government for highways,counties,and counties,the expressway gradually extends to the remote mountain areas with complex topography,and it will inevitably produce a large number of deep and high filling slopes.Compared with ordinary slopes,after deep-cutting the high-filled slopes,the stress on the surface soil of the slopes after the cut of the mountain body is cut off,and the active earth pressure on the slope foot is relatively large,which is more likely to cause geological disasters where the slope collapses.The stability of deep-cut slopes is closely related to geological conditions.If the slope protection measures are improper,it will cause excessive protection,waste of investment,or lack of protection,poor slope stability,bring serious safety hazards to the operation stage,induce disasters,and the mountainous areas of southern Jiangxi as the representative of remote mountainous areas in Jiangxi Province.Large area,complex terrain and geology,and good research on slope protection technology in highways in southern Anhui are of great significance for ensuring safety and stability of expressway roadbed and reducing roadbed disasters and diseases.This paper relies on the construction of the Anyuan-Dingnan Expressway and the Dingnan tie-line.It mainly deals with the protection of high-filled slopes in mountainous areas from the aspects of the stability of the slope of the expressway,the settlement and deformation of the roadbed,and the ecological protection of the slope.And ecological restoration technology into systematic research.Based on the research of the project,the results of deep slope protection and treatment techniques,high-fill slope protection and treatment technologies,and deep cutting high-slope ecological protection technologies were obtained.The results were applied in the project and good results were obtained. |
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