超声检测灌注桩混凝土强度是指在超声检测桩身混凝土匀质性、完整性的同时确定桩身混凝土的强度。本文通过对不同龄期、不同设计强度等级混凝土的室内大量立方体试块、室内模型桩以及现场工程桩的声速率定,用统计分析方法建立起不同设计强度、不同龄期的混凝土声速与实际强度之间的相关关系,为确定基桩桩身混凝土强度提供了快速简便的方法。 Ultrasonic testing of the strength of cast-in-situ concrete pile refers to the determination of the strength of pile-shaped concrete while testing the homogeneity and integrity of pile-shaped concrete by ultrasonic testing. In this paper, the acoustic velocity of a large number of indoor cube test blocks, indoor model piles and field engineering piles of concrete of different ages and different design strength levels are determined by statistical analysis method to establish the sound velocity and actual strength of concrete with different design strengths and different ages The relationship between the foundation pile to determine the strength of concrete provides a quick and easy way.