探地雷达在某铁路挡墙质量评估中的应用研究

介绍了MALA探地雷达挡墙检测基本原理、方法。通过现场已知厚度挡墙的检测，找到此类挡墙波速的取值，并结合实际工程，总结出不同病害挡墙对应的雷达图像特征。结果表明:探地雷达检测技术能有效地发现挡墙在墙体厚度、砂浆饱满程度和墙背回填土的密实度等方面的缺陷。

Study on Application of GPR in Quality Evaluation of Retaining Wall for Railway

This paper introduces the basic principle and method of MALA ground penetrating radar for retaining wall detection. Through detection of a retaining wall whose thickness is known in the field, wave speed value of this kind of retaining wall is found; and depending on actual project, characteristics of radar images corresponded to retaining walls with different diseases are summarized. The results show that with application of ground penetrating radar detection technology, defects of wall thickness, full extent of mortar at bed joint, compaction degree of backfill at the back of the retaining wall, could be found effectively.