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.
作者
赖思静
LAI Si-jing(China Merchants Highway Information Technology(Chongqing)Co.,Ltd.,Chongqing 400067,China)
出处
《价值工程》
2024年第22期111-113,共3页
Value Engineering
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
cement concrete pavement
void detection
falling weight deflectometer
ground penetrating radar
deflection ratio method
radar signal distortion characteristic analysis method
