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FWD是当前应用广泛的无损检测技术,其弯沉盆蕴含了丰富的路面结构强度的信息,国外FWD弯沉盆评价体系及结构层参数反算十分复杂,这限制了FWD在我国路面检测中的广泛应用,因此有必要建立简单易行的评价指标。文章通过大量的计算,在对弯沉盆各点弯沉与路面结构层各项参数间敏感性分析的基础上,建立了路面结构层各层模量的简化计算方法,这对我国FWD检测指标体系的形成具有重要参考意义。
FWD is a widely used non-destructive testing technique. Its inflexion basin contains rich information of pavement structural strength. The evaluation system of FWD deflection basin and the back-calculation of structure layer parameters are very complicated, which limits the FWD in the road surface detection of our country Widely used, it is necessary to establish a simple and easy evaluation index. Based on a large number of calculations, based on the sensitivity analysis of each parameter between the deflection sinking and pavement structure layer in the deflection basin, a simplified calculation method of the modulus of each layer in the pavement structure layer is established. The formation of the system has important reference value.