市政技术2023，Vol.41Issue(12)：174-178,5.DOI:10.19922/j.1009-7767.2023.12.174
基于FWD的水泥混凝土路面板底脱空检测技术研究
Research on Testing of Void Under Cement Concrete Pavement Slab Based on FWD
赖思静1
作者信息
- 1. 招商局公路信息技术(重庆)有限公司,重庆 400067
- 折叠
摘要
Abstract
In order to make clear the testing method and judging standard of testing the void under cement concrete pavement slab by falling weight deflectometer(FWD),based on the formation mechanism of the void of cement con-crete pavement slab bottom,the basic principle of the testing technology,testing point arrangement requirements,void judging method and standard of FWD are studied and analyzed in this paper.During the test by FWD on site,the testing point should be cleaned,a constant load applied and small temperature difference should be selected.According to the engineering application case and FWD verification test,when the deflection ratio of midpoint of edge and midpoint of the slab is greater than 2 or the deflection ratio of corner and midpoint of the slab is greater than 3,it should be judged comprehensively that there is void under cement concrete plate slab.关键词
水泥混凝土路面/落锤式弯沉仪(FWD)/脱空检测/弯沉比值法Key words
cement concrete pavement/falling weight deflectmeter(FWD)/void testing/deflection ratio method分类
交通运输引用本文复制引用
赖思静..基于FWD的水泥混凝土路面板底脱空检测技术研究[J].市政技术,2023,41(12):174-178,5.
