PHC管桩在我国地基处理工程中应用广泛,但施工时会产生不同程度的桩身质量问题,需要合理的检测手段对桩身质量进行检测。该文结合工程实例,介绍了孔内摄像法在PHC管桩检测中的应用。在工程检测过程中,首先采用低应变法和静载荷试验检测PHC管桩桩身质量,但检测结果出现了明显不一致,无法对桩身质量进行判定,而后采用孔内摄像法进行复检,可以直观地获得桩身缺陷的具体情况,实现了桩身质量的准确评价。孔内摄像技术可以在PHC管桩桩身检测中得到更广泛的应用。 PHC pipe pile is widely used in foundation treatment projects in our country, but will have different degrees of pile quality problems during construction, and reasonable testing methods are needed to test pile quality. Combined with engineering examples, this paper introduces the application of in-hole camera method in PHC pipe pile inspection. In the process of engineering inspection, the quality of PHC pipe pile body is first detected by low strain method and static load test, but the test results are obviously inconsistent, the quality of the pile body can not be judged, and then the re-inspection by the hole camera method can be used Intuitively obtain the specific circumstances of pile defects, to achieve an accurate assessment of the quality of the pile. Hole imaging technology can be PHC pipe pile body detection is more widely used.