The theory of ultrasonic wave in comPactness detection of giant steel tube concrete was introduced. It summarizes three common detec-tion methods including Plane detection,Pre-embedded sonic-testing tube detection and comPosite detection. Combined with the engineering Pro-ject,the integrated detection methods can be realized for giant steel tube concrete comPactness detection and can Provide a reference for similar Projects.%介绍了超声波检测巨型钢管混凝土密实性的原理，归纳了平面检测、预埋声测管检测、混合检测三种常规检测方法，结合工程实例，综合运用三种检测方法，实现了对巨型钢管混凝土密实性的检测，可供类似工程参考使用。
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