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采用有限元分析软件对CFG桩复合地基特性进行了研究,分析了不同的复合地基处理方案,如水泥土、桩帽网、和桩板方案对沉降规律和桩土应力比的影响.研究表明:复合地基处理方案为水泥土方案时路基沉降量最大、桩土应力比最小,地基面有明显沉降盆;桩板方案时路基沉降量最小、桩土应力比最大、地基面沉降更加均匀.
The characteristics of CFG pile composite foundation were studied by finite element analysis software and the effects of different composite foundation treatment schemes such as cement soil, pile cap net and pile-plate plan on settlement rule and pile-soil stress ratio were studied. The results showed that composite When the foundation treatment scheme is cement soil, the subgrade settlement is the largest, the pile-soil stress ratio is the smallest, and the ground surface has obvious settlement basins; the subgrade settlement is the smallest when pile foundation is planted, the pile-soil stress ratio is the largest, and the subsidence is more even.