Abstract
An overview of the software for designing flexible road pavements used in the USA, European countries and the Russian Federation is given, conceptual and mathematical models for designing flexible road pavements with the minimum cost per a linear meter are presented, the application of evolutionary algorithms in combination with exhaustive search and parallel computing is substantiated, the developed hybrid genetic algorithm for the optimization of flexible road pavement designs in terms of value of materials of layers is described, the results of a simulation experiment performed using the software developed within the framework of the study are presented in the article. It is proposed to use the developed software and algorithms for designing the optimal haul road pavements in terms of material cost.
Highlights
The main processes of mining are rock excavation and haulage
The developed software toolkit allows determining a design scheme for designing flexible road pavements in accordance with the Typicals, to calculate the strength of road pavements according to the following criteria: criterion of shear strength of the sub-grade and weakly cohesive layers, criterion of resistance of monolithic layers to bending tensile fatigue failure, criterion of elastic deflection of the structure, and carry out a frost resistance test (1)-(4); allows searching for the cost-effective design of flexible road pavements by varying the materials and the thicknesses of layers (6)-(7) using an exhaustive search of solutions and heuristic optimization methods
Software developed using parallel computing technology based on the proposed model and a genetic algorithm for numerical design of flexible road pavements allows reducing labor costs and time of work on a project, as well as reducing error rate when designing in comparison with the traditional method
Summary
The main processes of mining are rock excavation and haulage. The economic feasibility of haulage and the performance of heavy-duty trucks are largely determined by the state of haul roads. The developed software toolkit allows determining a design scheme for designing flexible road pavements in accordance with the Typicals, to calculate the strength of road pavements according to the following criteria: criterion of shear strength of the sub-grade and weakly cohesive layers, criterion of resistance of monolithic layers to bending tensile fatigue failure, criterion of elastic deflection of the structure, and carry out a frost resistance test (1)-(4); allows searching for the cost-effective design of flexible road pavements by varying the materials and the thicknesses of layers (6)-(7) using an exhaustive search of solutions and heuristic optimization methods. Computational experiments were carried out using equipment with the following characteristics: processor Intel(R) Core(TM) i5-4210U CPU 1.70GHz 2.4GHz; total number of cores – 2, threads – 4; RAM 6.00 GB (5.9 GB available); system type – 64-bit operating system, x64 processor Windows-10; Apache virtual server; MySQL 5.5, phpMyAdmin 3.5.1
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