敞口管型桩压入对既有受荷桩基承载性状影响
王磊,俞峰,潘静杰

Influence of jacking open-ended tubular piles on bearing behavior of existing in-service piles
Lei WANG,Feng YU,Jing-jie PAN
图 2 管型桩圆孔扩张应力模型
Fig.2 Expansion stress model of circular hole of tubular pile