Series of 1∶1 in-situ tests which were used to analyze internal force and deformation of pile founda-tion subjected to lateral soil movement by surcharge loading in deep-soft soil areas were carried out in Ningbo Cargo North Station of Zhejiang Province.The internal force and displacement of pile shaft,and the horizontal displacement of any soil stratum between pile foundation and surcharge loading were discussed along with the change of surcharge loading height and distance from the pile foundation.The test results indicate that the hori-zontal displacement of pile shaft caused by adjacent surcharge is opposite to the surcharge with significant time-dependent characteristics and its maximum value occurred at the pile top.Meanwhile,the bending moment in the pile shaft appears mainly at the range of 26 m below the ground,with its maximum approximately at the bot-tom of the soft soil.The distribution patterns of the bending moment of pile,the horizontal displacement of pile shaft and the soil strata are basically the same regardless of the test conditions,but all the values increase with the increasing magnitude of loading and the decrease of the distance between pile foundation and surcharge.%在浙江省宁波货运北站开展堆载对临近桩基内力与变形影响的1∶1原位现场试验，探讨深厚软土地区堆载高度、堆载与桩基距离等因素对桩身内力、位移、桩基和堆载间土体深层位移的影响规律。试验结果表明：临近堆载作用下，桩身向堆载的对侧偏移，最大值发生在桩顶处，且堆载对临近桩基的影响具有明显的时间效应；桩身弯矩在桩身上段26 m范围内较明显，其最大值大致位于软弱土层的底面；各工况下，桩身弯矩、桩身水平位移、桩与堆载之间土体的深层水平位移的分布规律基本相同，但其量值均随着堆载的临近与荷载强度的增加而增加。
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