摘   要：对比了钻孔灌注桩与PHC管桩在性价比、施工质量可控性及对环境影响方面的差异，着重分析了PHC管桩与钻孔灌注桩的力学性能差异，同时还对比了在相同轴向承载力的情况下，PHC管桩与钻孔灌注桩在原材料消耗成本、施工制作成本方面的不同。结果表明，在公路、铁路、水利等相关工程中，用PHC管桩替代钻孔灌注桩，不但可以节省25%~40%的工程造价，而且PHC管桩的施工质量可控性远高于钻孔灌注桩，对周边环境的负面影响也远小于钻孔灌注桩。

Abstract：The differences between the bored piles and PHC piles in performance price patio, construction quality control and environment implication are compared, and the mechanical properties of PHC piles and bored piles are analyzed. In addition, differences of PHC piles and bored piles under the same axial bearing capacity in raw material cost and construction cost are also compared. The results show that in highway, railway, water conservancy and other related projects, replacing bored piles with PHC pile not only can save 25%~40% of the engineering cost, but improve quality control of construction and reduce the negative effect on the neighboring environment largely.