提高地质雷达在隧道衬砌检测中的准确性研究

Study on Improving the Accuracy of GPR in Detection of Tunnel Lining

随着地质雷达技术的发展,它已经成为了一种主流的高效、直观的隧道衬砌无损检测手段。为了提高隧道衬砌检测结果的准确性,首先系统地论述了影响地质雷达检测的因素,并提出了相应的解决方法;然后运用正演数值模拟常见隧道衬砌缺陷的地质雷达响应特征;最后结合一些隧道检测的实例,说明这种综合判断方法能极大程度地提高地质雷达隧道衬砌检测的准确性。

With the development of ground penetrating radar （GPR） technology, it has become a mainstream form of efficient, intuitive means for non-destructive detection of tunnel lining. To improve the accuracy of detection of tunnel lining, this paper firstly discusses the factors affecting geological radar detection, and puts forward appropriate solutions. And then numerical simulation of ground penetrating radar response characteristics of common defects in tunnel lining has been conducted. Finally, some examples of tunnel inspection are combined, which shows this synthetic judgment method can greatly improve the accuracy of geological radar detection of tunnel lining.