摘要
Abstract
This paper investigates the application of solid wastetechnology in subgrade filling,addressing the issues of resource shortage and environmental damage associated with traditional subgrade materials.By employing mechanical,physical,and combined crushing technologies,construction waste,industrial tailings,and other solid wastes are converted into high-quality recycled aggregates for subgrade construction.The study analyzes waste types,designs crushing processes,and implements quality control.Results show that recycled aggregates outperform traditional materials in mechanical properties such as compaction,load-bearing capacity,and dynamic deformation modulus,while offering enhanced durability and water erosion resistance.Economic analysis reveals significant cost reductions in materials,transportation,and construction,with material costs cut by 30%～50%and construction costs cut by 20%～30%.Environmental benefits include substantial waste reduction,a 60%decrease in carbon emissions,and conservation of natural resources.This technology supports green and low-carbon development in the transportation sector and shows broad application potential.关键词
道路工程/固废破碎技术/路基填筑/资源循环利用/经济效益/环境效益Key words
road engineering/solid waste crushing technology/subgrade filling/resource recycling/economic benefits/environmental benefits分类
交通运输
