Through gravel pile composite foundation treatment and re-improving process of a central heating project,the paper demonstrates that applying gravel pile composite foundation should be conscious enough for the building with short construction duration and strict deformation demand of saturated softy clay foundation.In-situ test had better to be done firstly so as to decide construction method.%通过一集中供热工程碎石桩复合地基的处理及再次改善过程,阐明在施工工期短、对变形要求严格的饱和粘性土地基上的建筑物,采用碎石桩复合地基时要慎重对待,最好通过现场试验再决定是否采用。
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