ABSTRACT
Aiming at the problem of poor dynamic detection accuracy of subgrade and pavement compactness, a dynamic detection method of subgrade and pavement compactness for small-span highway bridge maintenance is proposed. Combined with subgrade resilience modulus, the stress structure of subgrade and pavement of small-span highway bridge is analyzed, and the evaluation value of subgrade and pavement compactness for long-span highway bridge maintenance is calculated. Finally, the experiment proves that the dynamic detection method of subgrade and pavement compactness for the maintenance of small-span highway bridges has the characteristics of fast, convenient and efficient, and can be better used for the rapid detection and evaluation of subgrade resilience modulus.
