Simulation study on asphalt fume diffusion during pavement laying in long tunnels

IF 5.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Pub Date : 2025-02-16 DOI:10.1016/j.measurement.2025.117031

Meng Wang , Xiule Chen , Mei Lin , Yixin Zhong

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引用次数: 0

Abstract

Tunnel asphalt pavement construction cause pollutant accumulation, presenting health risks. Considering the production principles of asphalt fumes, this study accurately calculates asphalt fumes’ release intensity based on fume source type classification and model optimization. Using the Large Eddy Simulation method, we studied the asphalt fumes’ diffusion behavior and concentration in working areas. The results indicate that tunnel ventilation substantially reduces the concentration of asphalt fumes within the working zones. The most pronounced decrease occurs when the wind speed increases from 0.5 m/s to 1.0 m/s. The average fume concentration drops below 5 mg/m3 at wind speeds exceeding 2 m/s. The average asphalt fume concentration during paving in a downwind direction is higher than in an upwind direction. The mixture’s temperature and state largely impact the intensity of the fume source. Lowering the temperature by 30℃ can substantially diminish the asphalt fumes’ concentration in the working area, effectively controlling the health risks to workers.

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来源期刊

Measurement 工程技术-工程：综合

CiteScore

10.20

自引率

12.50%

发文量

1589

审稿时长

12.1 months

期刊介绍： Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.