Reflection crack propagation analysis method and system with poor interlayer bonding

• Main Authors: MUI MAN KIT, YU XIN, ZHU HAORAN, WEI GUOFANG, MA DONGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC DIGITAL DATA PROCESSING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a reflection crack propagation analysis method and system with poor interlayer bonding, and belongs to the technical field of asphalt pavement maintenance. The method comprises the following steps: S1, acquiring radar map characteristics of poor bonding between a surface layer and a base layer based on a three-dimensional ground penetrating radar, and acquiring a pavement core sample based on the radar map characteristics; carrying out a shear test on the pavement core sample to obtain the bonding strength of the surface layer and the base layer of the pavement core sample; s2, constructing a discrete element shearing model, and calibrating the bonding strength of the surface layer and the base layer based on the discrete element shearing model; and S3, constructing a discrete element model of the full-scale slotted asphalt pavement, applying a moving load to the discrete element model of the full-scale slotted asphalt pavement under the calibrated bonding strength, and monitoring the