【摘要】 结合上海地区十多组钻孔桩静载试验资料,分析钻孔桩侧摩阻力性状,研究了钻孔桩桩侧土体临界位移值的分布特征,并与打入桩进行对比,分析了其影响因素,探讨了钻孔桩与打入桩承载力发挥过程的不同。统计计算了上海地区钻孔桩桩侧摩阻力分布系数,指出该值由于受施工工艺的影响而较传统值偏小。更多还原

【Abstract】 Based on the load test data of over ten bored piles in Shanghai,the behaviors of side resistance of bored piles are analyzed.The distribution characteristics of critical slip between bored pile and soil are studied and the effect factors are presented according to the comparison with the behaviors of driven piles.The difference of development process of bearing capacity between driven pile and bored pile is discussed.Based on the load tests,the distribution coefficient of skin friction is calculated and the average of calculated value is lower than the traditional value induced by the construction technology.更多还原