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既有建筑基桩桩身完整性检测在我国鲜有报道。钻芯法可以检测桩身完整性,但无法精确判断既有建筑基桩的断裂及发展情况,存在很大局限性。通过具体的例子,介绍了既有建筑基桩完整性检测的一种直接精确方法——全孔壁成像检测方法。全孔壁成像检测技术可形成连续的全孔壁展开图像,使整个钻孔孔壁一目了然;可进行缺陷的准确定量分析;可对多重缺陷进行检测;可直观、精确检测缺陷位置;从而全面、精确地判断既有建筑基桩的桩身完整性和质量。对同类工程具有一定的参考价值。
Existing building foundation pile integrity testing rarely reported in our country. Drill core method can detect the integrity of the pile, but can not accurately determine the fracture and development of existing foundation piles, there are some limitations. Through a concrete example, a direct and accurate method for detecting the integrity of foundation piles in existing buildings - the detection method of full borehole imaging is introduced. Full bore wall imaging detection technology can form a continuous image of the entire wall expansion, so that the entire hole wall at a glance; accurate quantitative analysis of defects; multiple defects can be detected; can be intuitive and accurate detection of defect location; so comprehensive, Accurately determine the integrity and quality of existing pile foundations. For similar projects have a certain reference value.