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。
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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