地质雷达在古墙体无损检测中的应用研究

Application of the GPR in Non-destructive Testing of Ancient Walls

为了保护古城墙等重要遗产,尝试利用探地雷达技术检测古墙体。详细讨论了探地雷达检测古墙体的地球物理前提条件,就地质雷达在墙体无损检测领域开展了较深入的探讨,以正常墙体与存在隐患的墙体为对比,系统分析了墙体密实不均匀、局部脱空、裂隙的原因,总结了墙体常见缺陷的雷达波相特征,最后针对不同的异常做了详细的解释,为墙体检测及治理提供一定的科学依据。

In order to protect important heritage such as ancient walls,this paper try to use radar technology to conduct non-destructive testing of the walls.The geophysical condition of this technology was discussed first,the testing technology was then introduced in detail,based on the comparison between the normal walls and the ones with hidden troubles,this paper analyzed the reasons which caused hidden troubles such as uneven density,local void,crack etc.The characteristics of radar facies of these hidden troubles were also revealed,and the abnormal phenomena was explained as well.This paper could provide instructions for non-destructive testing of the walls.