Asphalt pavement semi-rigid base crack monitoring method based on intelligent perception

The invention discloses an asphalt pavement semi-rigid base crack monitoring method based on intelligent perception, which is characterized in that intelligent particles integrated by a resistive sensor are buried in an asphalt pavement semi-rigid base to acquire mechanical response of a pavement structure, and monitoring of base cracks is realized. The method comprises the following steps: calibrating a conversion relationship between macro and micro parameters based on a uniaxial tension and compression simulation experiment, and establishing a cross-scale pavement model by adopting a finite element-discrete element coupling method; the method comprises the following steps of: tracking and positioning a base crack through numerical simulation of base crack evolution in combination with a fracture mechanics I-II type composite crack Westergard complex variable function method; burying intelligent particles in a pavement model base layer for information acquisition, and realizing matching of intelligent parti