嵌岩灌注桩抗拔承载性状试验研究  

TESTING STUDY ON ANTI-DRAW BEARING PROPERTIES OF CAST-IN-PLACE ROCK-SOCKED PILE

作　　者：何剑[1] 

机构地区：[1]长安大学地质工程与测绘工程学院

出　　处：《岩石力学与工程学报》2004年第2期315-319,共5页Chinese Journal of Rock Mechanics and Engineering

摘　　要：嵌岩抗拔桩的荷载传递机理和抗拔承载性状的研究比较缺乏。依据某核电厂2根嵌岩灌注桩单桩竖向抗拔静载试验数据,分析了嵌岩抗拔桩在受荷时的轴力传递、侧阻力发挥和桩端阻力特征,表明抗拔桩在承受拉升荷载时的承载机理与抗压桩存在不同,通过对试验结果的分析讨论,揭示了该地区土层和嵌岩段抗拔侧阻力的取值特点,得出了一些为相同地区同类基桩的设计、施工和深入研究具有指导意义的结论。According to the data of static loading test for two cast-in-place rock-socked piles of a nuclear power station,the transmission of axial pressure,properties of skin resistance and character of tip resistance under loading are analyzed. The difference between anti-press and anti-tensile piles are showed. By analyzing test results,the properties of clay layer and side resistance are revealed. The study result is instructive for design,construction and deep study of the same type of piles.

关 键 词：岩土工程 嵌岩抗拔桩 承载性状 试验 荷载 轴力传递 

分 类 号：TU473.14[建筑科学—结构工程]