The method entails utilizing knowledge obtained from Falling Weight Deflectometer (FWD) testing to estimate a numerical index representing the general load-carrying capability of a pavement construction. The FWD applies a managed impulse load to the pavement floor, and sensors measure the ensuing deflections at varied distances from the load. These deflection measurements are then utilized in backcalculation procedures to estimate the elastic moduli of the pavement layers. The structural quantity is in the end derived from these moduli and layer thicknesses.
This analysis technique is essential for pavement administration and rehabilitation planning. Correct evaluation of structural capability permits engineers to establish pavement sections which might be structurally poor and prioritize upkeep or rehabilitation efforts. This strategy gives a non-destructive various to damaging testing strategies, decreasing disruption to site visitors move. Traditionally, this analysis course of has enabled knowledgeable selections concerning useful resource allocation, extending pavement service life, and optimizing funding in infrastructure.
