地质雷达在客专隧道病害调查中的应用

随着高速铁路的大量建成和投入使用，其质量检测和隧道路基病害检测的重要性日益凸显。探地雷达（GPR）法作为一种常规的质量检测方法具有分辨力强、成本低、时间短等优点，因而被广泛应用于公路建设。工程试验表明，探地雷达同样可以快速、准确地完成铁路路基病害无损检测。结合在相关高速铁路上的检测实践，基于病害的发生机理和发育特征，对地质雷达法在隧道常规质量检测中的应用加以探析，从而为路基质量评价提供了有效的依据。

Application of GPR in Tunnel Disease Survey of Passenger Special Line

With the large number of high-speed railway built, it is important to make sure these projects is safe, especially for quality inspection and tunnel roadbed disease detection. The ground penetrating radar （GPR） method as a routine quality testing method has some advantages, such as strong resolving power, low cost and short time etc., so it is used widely in the construction of highway. The engineering experiments show that GPR can aslo finish the railway embankment disease non-destructive testing quickly and accurately combined with an- alyzing of the mechanism and developmental characteristics of tunnel roadbed disease in this paper. It provides an effective basis for quality evaluation of subgrade.