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结合湘西通县公路改造工程,应用手持式落锤弯沉仪(HFW D),研究了动回弹模量与旧路面剩余强度、静回弹模量和劈裂强度的关系,得出动回弹模量与路基路面强度参数(剩余强度、静回弹模量和劈裂强度)有较好相关关系的结论。结果表明,手持式落锤弯沉仪可用于路基路面强度参数的快速检测和评价,从而为路面结构的设计提供科学依据。
Combined with the reconstruction project of Xiangtong County in western Hunan Province, the relationship between dynamic resilience modulus and residual strength of old pavement, static resilience modulus and splitting strength was studied by hand drop weight deflectometer (HFW D) Modulus and subgrade pavement strength parameters (residual strength, static resilience modulus and splitting strength) have a good correlation between the conclusions. The results show that the hand-held deflection sinker can be used for the rapid detection and evaluation of the strength parameters of the pavement, so as to provide a scientific basis for the design of the pavement structure.