摘要
介绍了弯沉检测方法研究现状及各种方法的优劣。其中:贝克曼梁法和自动弯沉仪法技术简便,所测结果为静态弯沉,但效率低,目前研究主要集中在自动化改进以提高检测效率方面;落锤式弯沉仪法和激光式高速路面弯沉测定仪法检测结果为动态弯沉,检测效率高,但设备造价高昂,目前研究主要集中在对比试验相关性分析以及改进设备降低造价等方面。与落锤式弯沉仪相比,手持落锤式弯沉仪具有便携、造价低等优点,但主要用于科研,尚未列入规范中;二者的对比试验相关性分析和针对路面静态弯沉的预测模型还较少,因此对其进行相关方面的研究具有一定的实践意义。
The advantages and disadvantages of the deflection detection were reported.The technology of Beckmann beam method and automatic deflection method are simple,the results obtained are static deflection.However,the efficiency is low.The research direction is focused on detection efficiency by improvement of automation;The results of falling weight deflection method and Laser high-speed road deflection method are dynamic deflection.The efficiency are better than others.However,the equipment are expensive.The research direction is focused on the correlation analysis of the actual comparative test and improving the equipment to reduce the cost.Compared with the falling weight deflection,the hand-held falling weight deflectometer has the advantages of portability and low cost.However,it has been applied in scientific research not listed in the specification;At the same time,the correlation analysis of comparative test and the prediction model of pavement static deflection are fewer.The related research has some practical significance.
作者
李鹏
Li Peng(Guangzhou Municipal Engineering Design and Research Institute Co.,Ltd.,Guangdong Guangzhou 511400,China)
出处
《市政技术》
2022年第9期210-213,共4页
Journal of Municipal Technology
关键词
回弹弯沉
动态弯沉
检测
自动化
相关性
rebound deflection
dynamic deflection
detection
automation
correlation
