共振偏移法在孔道灌浆质量检测中的应用

Application of Resonance Migration Method in Quality Inspection of Duct Grouting

共振偏移法是专门针对复杂结构提出来的一种基于结构局部振动特征,分析孔道灌浆质量的分析方法。该方法通过在孔道位置的自振周期与灌浆密实部位或混凝土中测得的自振周期进行比较,通过自振周期差异对灌浆质量做出准确判定。应用实践表明共振偏移法检测复杂结构孔道内部灌浆质量准确有效。

Resonance migration method is a new method to analyze the quality of duct grouting based on the local vibration characteristics of complex structures.This method compares the natural vibration period at the duct position with that measured in the dense part of grouting or concrete,and accurately judges the grouting quality through the difference of natural vibration period.The application practice shows that the resonance offset method is accurate and effective in detecting the grouting quality in the duct of complex structure.And effective in detecting grouting quality in complex structure channels and is worth popularizing.