粉喷桩单桩与四桩复合地基对比试验研究

摘要

对粉喷桩单桩和无承台四桩复合地基进行了对比试验研究，通过分析各自承载力和沉降情况，揭示了粉喷桩无承台四桩与单桩承载性能的差异，指出单桩复合地基静载荷试验承载力高于多桩复合地基静载荷试验，同时单桩复合地基沉降小于多桩复合地基。%This paper carries on comparative experimental research on power spraying single pile and four-pile composite foundation. Through analyzing each bearing capacity and settlement condition, it demonstrates the bearing property difference of power spraying four-pile without bearing cap and single pile, and points out that the static loading test bearing capacity of single pile composite foundation is higher than of multi-pile composite foundation, and the foundation subsidence of single pile is smaller than that of muhi-pile.