预应力管道检测定位方法对比分析  

Comparative analysis of prestressed pipeline detection and positioning methods

作　　者：王彦伟 丁昊 王绍斌 邢振华 WANG Yanwei;DING Hao;WANG Shaobin;XING Zhenhua(Shandong institute of transportation science,Shandong Jinan 250031 China;Shandong Provincial Transportation Department's Inland Waterways Transportation Development Service Center,Shandong Jinan 250031 China)

机构地区：[1]山东省交通科学研究院,山东济南250031 [2]山东省交通运输厅内河水运发展服务中心,山东济南250031

出　　处：《山东交通科技》2024年第6期83-86,共4页

摘　　要：预应力管道定位检测是检测预应力桥梁质量缺陷的关键环节。以实际工程为依托,采用冲击回波法和探地雷达法,对预应力管道进行定位检测,通过两种方法的对比分析可得,无论金属波纹管还是塑料波纹管,冲击回波法的检测精度和检测稳定性均要高于探地雷达法。Prestressing pipe positioning inspection is the key to detect the quality defects of prestressed bridges.Based on the actual project,this paper adopts the impact echo method and the ground penetrating radar method to locate and detect the prestressed pipeline.Through the comparative analysis of the two methods,it can be found that the detection accuracy and detection stability of the impact echo method are higher than that of the ground penetrating radar method,no matter the metal bellows or plastic bellows.

关 键 词：预应力桥梁 定位检测 现场试验 预应力管道 冲击回波法 雷达定位法 

分 类 号：U443[建筑科学—桥梁与隧道工程]