基于探地雷达的地层介质图像识别分析
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摘要
输配电线路工程施工时,无法得知地表以下的地质状况,直接开挖施工,很可能造成无法估量的损失。使用非破坏性方法准确地检测地下地质结构、地下线缆和管道走向是一个关键问题。本文提出了基于探地雷达法的输配电线路工程地质探测法。首先通过不同的扫描方式分析出适合输配电线路工程施工的方式。其次,介绍了常见的雷达数据处理方法。通过对地下管线的图形进行分析,证明了去除直达波的有效性。最后,利用不同管线的成像特点,分析探测的波形堆积图,准确地判断出了探测路面地下的线缆和管道走向。
During the construction of the transmission and distribution line project,it is impossible to know the geological conditions below the surface,and direct excavation may cause incalculable losses.It is a key problem to accurately detect underground geological structures,underground cables and pipelines by non-destructive methods.In this paper,an engineering geological exploration method for transmission and distribution lines based on ground penetrating radar method is proposed.First of all,the method suitable for the construction of transmission and distribution lines is analyzed through different scanning modes.Secondly,the common radar data processing methods are introduced.The effectiveness of removing direct waves is demonstrated by analyzing the patterns of underground pipelines.Finally,using the imaging characteristics of different pipelines,the detected waveform stacking map is analyzed to accurately determine the cable and pipeline orientation below the detected pavement.
During the construction of the transmission and distribution line project,it is impossible to know the geological conditions below the surface,and direct excavation may cause incalculable losses.It is a key problem to accurately detect underground geological structures,underground cables and pipelines by non-destructive methods.In this paper,an engineering geological exploration method for transmission and distribution lines based on ground penetrating radar method is proposed.First of all,the method suitable for the construction of transmission and distribution lines is analyzed through different scanning modes.Secondly,the common radar data processing methods are introduced.The effectiveness of removing direct waves is demonstrated by analyzing the patterns of underground pipelines.Finally,using the imaging characteristics of different pipelines,the detected waveform stacking map is analyzed to accurately determine the cable and pipeline orientation below the detected pavement.
引文
[1]张博,刘斯坦.基于偏移和反褶积的探地雷达图像处理正演模拟[J].河南建材,2017(06):61-62.
[2]邹延延.地下管线探测技术综述[J].勘探地球物理进展,2006,29(1):14-18.
[2]邹延延.地下管线探测技术综述[J].勘探地球物理进展,2006,29(1):14-18.