通过对预制方桩和管桩的比对试验,得出两种桩型的竖向承载能力差异较小,单桩水平临界荷载和极限荷载存在很大的差异,通过比对试验给出了两种桩型的承载能力及地基土水平抗力系数的比例系数m值,分析两种桩型之间存在的差异的原因。建议地基处理工程中应优先选择预制管桩。 Through the comparison tests of prefabricated square piles and pipe piles, it is found that the difference of vertical bearing capacity of the two piles is small, and the horizontal critical loads and ultimate loads of single piles are quite different. Based on the comparison test, The bearing capacity of the pile type and the ratio coefficient m of the horizontal resistance coefficient of the foundation soil are analyzed to analyze the reasons for the difference between the two pile types. Proposed foundation treatment project should give priority to precast pipe pile.