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Research on the Combination of Firefly Intelligent Algorithm and Asphalt Material Modulus Back Calculation
Runmin Zhao1, Jinzhi Gong1,2, Yangzezhi Zheng1
1School of Transportation, Southeast University, Nanjing 211189, China.
A new Firefly Asphalt Back Calculation Method (FABCM) offers precise asphalt pavement material modulus data. This efficient method achieves high accuracy with minimal calculation time, improving pavement design and evaluation.
Area of Science:
- Civil Engineering
- Materials Science
- Computational Intelligence
Background:
- Accurate asphalt pavement material modulus is crucial for pavement design, strength assessment, and stability evaluation.
- Existing modulus back calculation methods may lack precision and efficiency.
Purpose of the Study:
- To introduce a novel, highly precise modulus back calculation method for asphalt pavement materials.
- To validate the reliability, stability, and efficiency of the proposed Firefly Asphalt Back Calculation Method (FABCM).
- To investigate the feasibility of multi-parameter modulus back calculation.
Main Methods:
- Developed the Firefly Asphalt Back Calculation Method (FABCM) utilizing a firefly optimization algorithm.
- Employed theoretical deflection curves from BISAR3.0 and actual measurement data from the RIOHTrack full-scale test circular track.
- Validated the method using deflection curves and vertical pressures on subgrade top surfaces.
Main Results:
- FABCM demonstrated high efficiency, completing each calculation in 0.5-1 second.
- Back calculation errors were consistently below 1%, indicating effective modification of the firefly optimization algorithm.
- Identified key factors influencing modulus back calculation accuracy.
Conclusions:
- FABCM is a reliable, stable, and efficient method for asphalt pavement material modulus back calculation.
- The study confirms the effectiveness of the modified firefly optimization algorithm for this application.
- Provided practical suggestions for applying modulus back calculation methods in pavement engineering.
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