摘要
探地雷达技术作为一种无损检测方式,逐渐被应用于道路结构的无损检测。然而探地雷达的数据处理较为复杂,处理过程是否合理会直接影响检测的效果。文中探讨了6种相关信号处理方式的原理及特点和适用性,提出一套信号处理流程,应用于道路沥青注浆实际工程的效果评价;并与FWD的弯沉盆计算结果比较。结果表明,这种信号处理流程可以得到满足工程要求的结果,与FWD弯沉盆计算结果一致性达到86.9%。
As a type of non-destructive detective method for road structure, Ground Penetrating Radar has been gradually used in practice. However, the processing of GPR data is elaborate and the unsuit-able processing method could affect the outcome. The principal, characteristics and feasibility of six signal processing methods are discussed, and a flow path of data processing is proposed. This process-ing flow is then applied to the evaluation of asphalt grouting, comparing with the method based on de-flection basin response of FWD. It is shown that GPR could effectively evaluate asphalt grouting, and the results of two methods are similar to a degree of 86. 9 % .
出处
《交通科技》
2017年第2期143-146,共4页
Transportation Science & Technology
基金
山西省交通运输厅科技计划项目(2015-1-1)资助
关键词
无损检测
探地雷达
信号处理
脱空
沥青注浆
non-destructive detection
GPR
data processing
void
asphalt grouting
