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沿海地区软土层地基中,现代建筑物越来越多地应用桩作深基础,基桩在灌注施工过程中,桩身混凝土易出现各种缺陷(包括缩径、扩径、离析、断裂等)以至于影响单桩承载力。因此,桩基竣工后的桩完整性检测,对地下隐蔽工程质量和可靠性显得至关重要。目前,采用无破损动测检查桩身完整性已广泛被工程界接受,无破损动测的瞬态法,除了设备简单、检测程序简便,省时,省工、
In the coastal soft soil foundation, more and more modern buildings are being used as deep foundations. During the pouring construction of pile foundation, various defects (including diameter reduction, diameter expansion, segregation, fracture, etc.) ) So that single pile bearing capacity. Therefore, after the completion of the pile foundation pile integrity testing, quality and reliability of underground concealed project is crucial. Currently, the use of non-destructive dynamic test to check the integrity of the pile has been widely accepted by the engineering, non-destructive measurement of the transient method, in addition to simple equipment, testing procedures are simple, time-saving, labor-