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

表 4 新增桩长为25 m时不同桩间距下在役桩极限桩端阻力对比

Tab.4 Comparison of ultimate pile tip resistance of in-service piles under different pile spacings with newly added pile length of 25 m

d/m Qpu /kN S3 /% 球孔扩张法 有限元法 补桩前 5407.4 5535.2 −2.3 3D 5731.4 5979.3 −4.1 4D 5594.3 5871.3 −4.7 5D 5519.0 5802.6 −4.9 6D 5438.6 5701.1 −4.6