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以“5.12”汶川地震影响严重的地区内CFG桩复合地基加固工程为研究对象,选取典型地基剖面运用FLAC3D模拟历经“5.12”汶川地震的地基的变形、应力及破坏特征,对CFG桩复合地基中CFG桩特性进行分析,并与震后现场建筑物震损特征相比较,评价CFG桩复合地基加固效果,为地震区采用此方式处理地基提供经验。
In this paper, the CFG pile composite foundation reinforcement project in the area affected by the “5.12 ” Wenchuan earthquake is taken as the research object. The deformation, stress and failure characteristics of the foundation after the “5.12 ” Wenchuan earthquake are simulated by using FLAC3D. This paper analyzes the characteristics of CFG pile in pile composite foundation and compares it with the earthquake damage characteristics of on-site buildings after earthquake to evaluate the reinforcement effect of CFG pile composite foundation and provide experience for the treatment of foundation in this area.