Through the standard penetration test (SPT) the plug behavior of PHC piles in silty sand and the influence to the characteristics of the soil around PHC pile by driving or jacking methods are studied.

• 采用现场标准贯入试验,分析了粉砂土中PHC管桩的土塞特性、不同沉桩方式对桩周土力学性能的影响。