中文摘要：

基于汨水河特大桥嵌岩桩的现场静载试验报告,对大直径嵌岩桩荷载传递机理进行了深入的现场试验研究.通过基桩的静载试验数据分析,获得了桩顶荷载-位移曲线、桩周岩层侧阻力与位移曲线以及桩侧与桩端阻力分担比等.研究表明：桩身摩阻力不仅受岩层极限摩阻力的影响,同时也受法向应力的影响,由勘探报告所提供的岩层极限侧阻力数值偏小;嵌岩桩嵌岩段承担了大部分桩顶荷载,且嵌岩段摩阻力起主要作用,表现为摩擦桩;在加载过程中桩侧土阻力所占比例逐渐减小,嵌岩段总阻力逐渐增加,最终趋于稳定.

英文摘要：

The load transfer mechanism rocK-socKeteu rock-socketed pile static load test report of Mishui River Bridge, by conducting situ experiments. Based on the analysis of data from conducting situ experiments of the pile, the pile top load displacement curve was obtained, as well as the relationship of resistance size of rock surrounding the pile with displacement and the share ratio of pile side and end resistance, etc. The research results show that the friction resistance of pile body is influenced not only by limit friction resistance but also by normal stress. The value of limit side resistance provided by the prospecting report is smaller. The socketed section bears most of the pile top load, and the friction of socketed section plays the leading role, for the performance of the friction pile. In the process of loading, the proportion of the side of pile soil resistance decreaseds gradually, while socke ted section total resistance increases gradually, and finally tends to be stable.