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本文以一钻孔嵌岩灌注桩工程出现质量问题后进行桩基承载力整体评估为实例,介绍综合多种检测手段检查评估桩基整体承载力的方法,首次提出了基于应力波理论的嵌岩灌注桩桩底性状分类标准,指出在分类的基础上通过高应变法结合比对试验分别进行各类基桩的承载力统计分析,可以对单位工程全体基桩的承载力进行有效评估,使得加固补强可以有的放矢地进行。
In this paper, the overall evaluation of the pile bearing capacity after the quality problem of a rock-socketed cast-in-situ piles project is taken as an example, the method of inspecting and evaluating the overall bearing capacity of the pile foundation by a variety of testing methods is introduced. For the first time, It points out that based on the classification, the statistical analysis of the bearing capacity of various types of piles by means of high strain method and comparison test can effectively evaluate the bearing capacity of the whole pile of unit engineering so that the reinforcement Reinforcements can be targeted.