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本文是“基于钻芯检测法定量评估基桩质量的研究”系列论文的第四篇。这组系列研究论文对钻芯检测法推广过程中常见的问题——“定性评估的缺陷、定量评估的可行性及实际操作”做了较深入的探讨,增强了检测结果的客观性,降低了检测难度,为钻芯法检测基桩质量的科学研究和工程应用提供了新的解决途径。“三驾马车”指的是钻芯法检测基桩完整性时,支撑桩长单独评估完整性的三大要素,即桩长系数、桩径系数及长径比系数。本文主要解决桩长与完整性等级定量评估之间难以建模的问题,并提出桩长特征值的计算公式。
This article is the fourth in a series of articles on “A Quantitative Assessment of Foundation Piles Based on Core Testing.” This series of research papers on drill core testing method to promote the common problems - “qualitative assessment of defects, quantitative evaluation of the feasibility and practical operation ” to do a more in-depth discussion, and enhance the objectivity of the test results, Which reduces the testing difficulty and provides a new solution to the scientific research and engineering application of the core-pile method for the detection of pile mass. “Troika ” refers to the three elements that support the pile length to evaluate the integrity of the pile alone, namely the pile length coefficient, the pile diameter coefficient and the aspect ratio coefficient when the core method detects the integrity of the pile. This paper mainly solves the problem that it is difficult to model the quantitative assessment of pile length and integrity level, and proposes the calculation formula of pile length eigenvalue.