适用于路面回弹弯沉值测定,以评价路面的整体强度。 杠杆比: 2:1 示值分度: 0.01mm 规格: 3.6m, 5.4m, 7.2m 弯沉值就是从整体上反映了路面各层次的整体强度,路基的强度一般用回弹模量来反映。如果弯沉值过大,其变形也就越大,路面各层也 就容易破裂。 弯沉值过大,其原因一般与路面各层的材料性质,厚度,整体性有关。
... Benkelman beam test 贝克曼梁试验 deflectometer Benkelman beam 弯沉仪 Benkelman Beam testing 贝克曼梁法 ; 贝克曼梁测定法 ...
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采用贝克曼梁或落锤式 弯沉仪(Falling Weight Deflectometer,FWD),测定旧沥青路面表面 回弹 弯沉,计算综合 回弹模量,来评价旧沥青路面承载能力,并推荐控制标准值为当...
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落锤式弯沉仪 FWD ; Falling Weight Deflectometer ; falling weight deflector ; FWWWD
落锤弯沉仪 FWD ; Evd
便携式落锤弯沉仪 PFWD
杠杆弯沉仪 beam level deflectometer
自动弯沉仪 autodeflectometer ; automatic pavement deflector
手持式落锤弯沉仪 HFWD
动力式弯沉仪 dynaflect
落锤式弯沉仪测定法 Falling Weight Deflectometer testing
挪动转移式弯沉仪 traudio-videoelling deflectometer
由测试结果发现这两种弯沉仪的实测弯沉值差别不大,具有良好的相关关系。
It was found that the deflection values measured respectively by FWD and BB were in good regressive relationship.
文摘:在研究现有国内外技术成果的基础上,结合在道路量测上的实践,分析、总结了落锤式弯沉仪的7个应用领域。
Abstract: Based on research and application of FWD in roads, the author analyzes and presents seven practical techniques of FWD.
采用轴对称动力有限元结合系统识别反分析理论进行路面模量反算,考虑了落锤式弯沉仪(FWD)荷载作用下的路面反应动力效应。
This essay adopts limited units of axial symmetry and theory of system recognizing backcalculation, in which the dynamic effect of the road surface reaction to load of FWD is considered.
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