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落锤式弯沉仪与贝克曼梁式弯沉仪的比较和评价
引用本文:樊兆强,杨辉,攸频.落锤式弯沉仪与贝克曼梁式弯沉仪的比较和评价[J].中国市政工程,2003(5):8-10.
作者姓名:樊兆强  杨辉  攸频
作者单位:1. 天津市第一市政公路工程有限公司,天津,300170
2. 天津市市政工程质量监督站,天津,300210
3. 河北工业大学研究生院,天津,300130
摘    要:分析评价目前国内测定弯沉值的两种主要检测设备(贝克曼梁式弯沉仪和FWD落锤式弯沉仪)的技术特点。基于大量的对比试验检测数据,分析比较了两种检测设备的数据可靠性、测量精确性、仪器稳定性与检测效率。结果表明,FWD的技术性能优于贝克曼梁式弯沉仪。

关 键 词:回弹弯沉  粗大误差  测量精度  设备稳定性  评价  弯沉仪

Comparison and Evaluation on FWD and Benkelman Beam Deflectometer
Fan Zhaoqiang,Yang Hui,You Pin.Comparison and Evaluation on FWD and Benkelman Beam Deflectometer[J].China Municipal Engineering,2003(5):8-10.
Authors:Fan Zhaoqiang  Yang Hui  You Pin
Affiliation:Fan Zhaoqiang* Yang Hui** You Pin***
Abstract:Introduced here are the analysis and evaluation on technical performances of the main two kinds of home-made instruments for measuring deflections-Benkelman beam deflectometer and FWD drop hammer deflectometer. Based on large quantities of comparing test data, analysis and comparison are made on reliability of data, accuracy of measurement, stableness of the instrument and effectiveness of measurement, and the results show that the technical performances of FWD are better than those of Benkelman beam deflectometer.
Keywords:rebound reflection  coarse error    measurement accuracy  defletometer  equipment stability  evaluation  
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