探地雷达和超声波法在混凝土结构检测中的应用  

Application of Ground-penetrating Radar and Ultrasonic Methods in the Concrete Structures Detection

作　　者：徐莹[1] 徐宏武[2] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《土木工程与管理学报》2012年第1期97-101,共5页Journal of Civil Engineering and Management

摘　　要：混凝土结构内部若存在不密实区或空洞等缺陷,必然会严重影响结构的承载能力和耐久性。混凝土结构的无损检测一直是工程界普遍重视的问题,也是保证大型结构安全服役的关键。结合工程实例,阐述了采用探地雷达和超声波检测混凝土不密实区和空洞的原理、方法,并详细介绍了检测数据处理过程,通过现场检测试验和数据处理与分析,检测得到的结果与实际破损的混凝土缺陷情况基本一致,表明用探地雷达结合超声波检测混凝土不密实区和空洞效果较理想,用于无损检测是可行的。If there are non-dense areas,holes and other defects in concrete structure,it will seriously affect the loading bear capacity and durability of the structure.How to make non-destructive testing on concrete structure is the prevalent problem in civil engineering field,which is regarded as the difficulty to ensure the safety and durability of large concrete construction.With practical examples,the paper presents the theory and method that it uses ground-penetrating radar and ultrasonic to detect non-dense areas and holes and shows the detailed process of dealing with the data.Through of field-testing and data processing and analyzing,the paper presents that the test-result is basically the same to defects which the fact damage to concrete.It shows the method to detect concrete is efficacious,feasible and applicable.

关 键 词：探地雷达 超声波 结构缺陷 无损检测 

分 类 号：TU528.07[建筑科学—建筑技术科学]