水泥混凝土路面板底脱空无损检测技术研究  

Study on Non-destructive Testing Technology of Void under Cement Pavement Slab

作　　者：赖思静 LAI Si-jing(China Merchants Highway Information Technology(Chongqing)Co.,Ltd.,Chongqing 400067,China)

机构地区：[1]招商局公路信息技术(重庆)有限公司,重庆400067

出　　处：《价值工程》2024年第22期111-113,共3页Value Engineering

摘　　要：为了进一步明确落锤式弯沉仪(FWD)和探地雷达(GPR)进行水泥混凝土路面板底脱空的无损检测方法和判断标准,基于2种方法的测试原理分析,分别提出了弯沉比值法和雷达信号畸变特征分析法进行路面脱空判定,并对两种脱空检测技术进行了工程应用。结果表明,两种检测技术判定结果具有较好的一致性,由于GPR检测速度快且为连续性检测,更适合运营道路水泥混凝土路面板底脱空检测。In order to make clear the non-destructive testing method and judging standard of the void under cement concrete pavement slab by FWD and GPR,the testing principle of the two methods was analyzed,the deflection ratio method and the radar signal distortion characteristic analysis method are put forward respectively to judge the pavement void,and two void detection techniques are applied in engineering.The results show that the two detection techniques have good consistency,because of the GPR detection speed and continuous detection,it is more suitable for the operation of cement concrete pavement slab floor void detection.

关 键 词：水泥路面 脱空检测 落锤式弯沉仪 探地雷达 弯沉比值法 畸变特征分析法 

分 类 号：U416.216[交通运输工程—道路与铁道工程]