陈传水  甘正常
    （杭州市建筑设计研究院 310001）

[提要]  通过对两个工程不同长度的嵌岩灌注桩的垂直承载力的试验，分析了不同桩长的嵌岩端承力的发挥程度乃长桩侧阻力的安全储备，可供设计超长桩时参考。
[关键词]  超长灌注桩  嵌岩桩  端承力

Through vertical bearing capacity tests on cast-in-place piles embedded rock in different length, the author analyzes the use of end bearing and the safety reservation of side frictional resistance, which can give reference for design.
Keywords:  ultralong cast-in-place pile; socketed pile; end bearing