挡土墙质量及病害无损检测应用研究

详细介绍挡土墙质量及病害缺陷类型，从电磁波传播理论及其在不同界面上的反射、透射等，论证挡土墙各种质量缺陷及病害地质雷达无损检测的可行性。结合挡土墙无损检测模型，引出地质雷达检测挡土墙质量缺陷及病害的基本原理，并以四川省S302两河口至马桥段震后挡土墙和梁万高速公路2处病害档土墙无损检测为例，总结可行的地质雷达挡土墙质量、病害检测技术及评价办法。

Application Research on Nondestructive Examination for Quality Defects and Diseases of Retaining Walls

This paper introduces the types of quality defects and diseases of the retaining walls in detail, and demonstrates the feasibility of nondestructive examination （NDE） by geological radar for various quality defects and diseases of retaining walls based on the propagation theory of the electromagnetic wave and its reflection and transmission on different interfaces, etc. In combination with the NDE model for retaining walls, the paper derives the fundamental principle of examination by geological radar for quality defects and diseases of retaining walls, and summarizes feasible examination techniques by geological radar for quality defects and diseases of retaining walls and evaluation methods by taking the retaining wall after earthquake in Lianghekou-Maqiao Section of Sichuan Provincial Expressway S302 and two retaining walls with diseases on Liangping-Wanzhou Expressway as examples.