多种检测方法在软土地区桥梁桩基检测中的综合应用

Comprehensive Application of Several Detection Methods in Bridge Pile Foundation Detection in Soft Soil Area

摘要:

沿海软土地区的桥梁桩基础受制于深厚软土地质条件，施工工艺复杂，施工作业时间长，产生质量问题的风险更高，工程中常用低应变法、声波透射法和钻芯法对其成桩质量进行检测。简述了三种检测方法的工作原理及优缺点，结合工程实例分析，指出实际运用中应注意结合施工工艺和地质条件进行综合分析，采用多种检测方法进行相互验证，取长补短，以免产生重判和误判，保证检测结果的可靠性和精确性。综合运用案例可供类似工程检测情况和完整性判断提供参考。

Abstract:

In the coastal soft soil area, due to the deep soft soil geological conditions, the construction technology of the bridge pile foundation is more complex, the construction time is long, and the risk of quality problems is higher. The low-strain method, cross-hole sonic logging method and core drilling method are commonly used in the projects to detect the finished pile quality. The working principles, advantages and disadvantages of three detection methods are briefly described. Combined with the analysis of engineering examples, it is pointed out that comprehensive analysis should be carried out in combination with the construction technology and geological conditions in practical application. A variety of detection methods are used to verify each other so as to avoid the re-judgment and misjudgment, and ensure the reliability and accuracy of the detection results. The comprehensive application cases can provide the reference for the similar engineering detections and integrity judgments.