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一、概述现代构造物已向高层、大跨发展.预先确定基础的承载能力,为设计提供可靠的参数,对保证构造物的质量和可靠性是至关重要的.灌注桩在施工过程中,桩身混凝土易出现各种缺陷,而使承载力受到影响.特别是大直径灌注桩,由于其在构造物中的重要性,个别单桩的承载力降低将会使整个结构受到严重影响.因而工程桩的质量普查和单桩承载力预测就十分重要了.
I. Overview Modern structures have developed to high-rise and long-spans.Pre-determining the bearing capacity of the foundation and providing reliable parameters for the design are essential to ensure the quality and reliability of the structure.During the construction process, Due to the defects in the pile concrete, the bearing capacity is affected, especially for large-diameter cast-in-situ concrete piles, which will seriously affect the whole structure due to the importance of the pile in the structure. Engineering quality survey pile and single pile bearing capacity prediction is very important.