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既有建筑基桩桩身完整性检测在中国鲜有报道。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。笔者通过具体实例,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。
Existing building pile foundation integrity testing rarely reported in China. 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, the author introduces a direct and accurate method for detecting the integrity of foundations of existing buildings - the detection method of full borehole imaging. 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 defects; thus comprehensive, Accurately determine the integrity and quality of existing pile foundations.