Triangulation of pavement deflections using more than four sensors

摘要

Systems and methods are disciosed that provide improved non-destructive testing of pavements and in particular non-destructive testing of pavements using rolling wheel deflectometer systems having more than four sensors. The additional sensors more acourately detect pavement deflections under load by compensating for the influence the load deflection basin can have on sensors beyond those at the wheel load. The sensors should be spaced with equal distances from the rolling weight and can have a distance hetween adjacent sensors that is greater than the equivalent thickness of the pavement being measured.