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低应变反射波法和钻芯法都可以检测桩的完整性,是目前基桩检测用得比较多的两种方法。其中,低应变法具有设备简便、方法快捷、费用低、结果比较可靠的优点,能够有效地检测混凝土桩的桩身完整性,判定桩身缺陷的程度和位置;钻芯法可以检测桩身完整性、桩身混凝土强度是否满足设计要求,桩底沉渣是否符合设计或施工验收规范要求,持力层的岩土性状和抗压强度是否符合设计要求,施工记录桩长是否属实。这两种桩基检测方法在桩基验收检测中起到很大的作用。
Both the low-strain reflection wave method and the core drilling method can detect the integrity of a pile, and are two methods used for detecting a pile at present. Among them, the low strain method has the advantages of simple equipment, fast method, low cost and relatively reliable result, and can effectively detect the integrity of the pile body of the concrete pile and determine the degree and position of the pile defect. The core drilling method can detect the integrity of the pile body Whether the strength of the pile concrete meets the design requirements, whether the pile bottom sediment meets the design or construction acceptance requirements, whether the geotechnical properties and compressive strength of the retaining layer meet the design requirements, and whether the pile length of construction records is true or not. These two kinds of pile foundation testing methods play a great role in the pile foundation inspection.