然后根据奇异点位置确定入射波、缺陷反射波、桩底反射波位置。
Then, the positions of the incident wave, pile-toe reflection wave and flaw reflection wave can be determined by the position of singular point.
由信号的奇异点位置很容易确定入射波、缺陷反射波、桩底反射波位置。
Then the incident wave, pile-toe reflection wave and flaw reflection wave can be judged by the position of singularity.
应力波反射法在检测基桩质量的应用上存在着方法上的局限，且桩身缺陷的方向性对检测结果影响极大。
The stress - wave reflection method exist limitation in testing the quality of foundation pile. The direction of defects in pile body exerts a tremendous influence on testing results.
通过大量正演计算，拟合出桩周土为黏土、砂土、粉土条件下缺陷程度与时域速度响应波形中入射波与反射波波幅比之间的关系式。
Using this software, the relationship between degree of defect and ratio of amplitude was studied, in which the influence of the characteristics of the soil around piles is taken into account.
根据柱孔缺陷的端点反射波和衍射波的特点，分析了用端点衍射法测定柱孔类缺陷自身高度的原理。
The principle of measuring the self-height of cylindrical hole defect by ultrasonic tip diffraction technique was analyzed based on the characteristics of reflected and diffracted waves.
结合工程实例，分析了钢筋混凝土钻孔灌注的特点及常见缺陷。介绍了基桩质量检测的常用方法及反射波法检测钻孔灌注桩的基本原理、方法。
Based on the practice, it analyses the performance and limitation of borehole cast-in-place concrete pile, and introduces the methods of quality test: especially the stress reflection method.
提出了混凝土结构中任意缺陷的应力波反射成像测试与诊断方法。
A stress wave reflection imaging (SWRI) method is presented to test and diagnose the complex defects in the concrete structure.
对于严重缺陷的反射波特征，重点区别了同一缺陷界面的多次反射和多缺陷反射在反射波曲线上的差别；
To study the curve characteristics of shallow severe defects, I distinguished the multi-defective pile from the same defect interface.
对于严重缺陷的反射波特征，重点区别了同一缺陷界面的多次反射和多缺陷反射在反射波曲线上的差别；
To study the curve characteristics of shallow severe defects, I distinguished the multi-defective pile from the same defect interface.
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