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在建筑行业快速发展的新形势下,软土地基处理技术也日益增多,其中最为常见的就是CFG桩。在软土地基中应用CFG桩可以取得较好的效果,但是,在采取振动沉管法对CFG桩进行施工时,沉管的挤压与振动效应却会在很大程度上扰动桩周土,同时还会给饱和软粘土造成巨大的超静孔隙水压力。为此,笔者结合工程实践,对软土地基CFG桩施工技术要点进行了分析,以期为提高软土地基CFG桩的施工效果提供一定的参考依据。
In the new situation of rapid development of the construction industry, soft soil foundation treatment technology is also increasing, the most common of which is the CFG pile. However, when the CFG pile is constructed by vibro-immersed tube method, the squeeze and vibration effect of immersed tube will disturb the soil of the pile to a large extent, At the same time it also creates a huge excess pore water pressure for saturated soft clay. Therefore, combining with engineering practice, the author analyzes the technical points of CFG pile construction in soft ground so as to provide some references for improving the construction effect of CFG pile on soft soil foundation.