扩底桩竖向承载性能的试验研究Test and Research on Vertical Bearing Behavior of Belled Pile
逯海;蒋建平;
摘要(Abstract):
扩底桩在当前工业建筑中得到了越来越广泛的应用.本文对扩底桩承载性能进行了试验研究.研究结果表明,当扩底直径D、桩身直径d固定时,总极限侧阻力(kN)所占桩顶极限荷载的百分比随有效桩长L的增大而增大;在其它条件相同时,随着扩底桩直径D的增大,桩的承载力(kN)也变大,但极限端阻力(kPa)随扩底直径的增大却有不同程度的降低;扩底桩桩身直径d和直径桩直径相同、入土长度相当时,扩底桩的承载性能比直径桩的要好、沉降要小.
关键词(KeyWords): 扩底桩;竖向承载性能;桩侧阻;桩端阻
基金项目(Foundation):
作者(Authors): 逯海;蒋建平;
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