表层直达波CT探测混凝土空洞的试验研究

Study of CT Detecting Concrete Lacunas of Surface Direct Wave

声波法探测缺陷作为无损检测的一种重要手段在岩土工程中已获得广泛的应用,但在单界面的条件下,用声波法探测固体内部缺陷的应用还处于初步阶段。本文尝试单界面的测试条件下,采用一定的单波测试组合,获取固体内部界面或空洞的信息,利用波速的网格划分,对探测对像进行成像。本文以实体模型为探测对像,取得了初步的成像效果,为进一步单界面声波探测固体内部缺陷和复杂声波探头的研究提供了参考。

Acoustical method,as a non-destructive inspection,has been widely used in geotechnical engineering. In this paper,under the condition of single layer,the combination of single wave testing is adopted to obtain the lacuna information and make CT images with the help of grid plotting of the wave.