关键词: 建筑垃圾回收, 职业病危害因素, 减振降噪措施

Abstract: Objective To analyze and evaluate the occupational hazards of a construction waste recycling and reuse project in Jiangyin City,and provide reference for employers to strengthen occupational hazard protection and protect the health of workers. Methods Qualitative and quantitative analysis of occupational hazards in a construction waste recycling and reuse project in Jiangyin City was conducted in February 2023 using on-site investigation and testing methods. Results The production process of a construction waste recycling and reuse project in Jiangyin City involved occupational hazards such as silicon dust,noise,and power frequency electromagnetic fields. The test results showed that the concentration of silicon dust（10% ≤ free SiO₂ content ≤50%,respiratory dust） at each testing point in the construction project workplace was <0.7 mg/m³,which met the requirements of occupational exposure limits. The measurement result of the power frequency electric field strength of the electrician in the distribution room was 0.6-0.8 V/m,which met the occupational exposure limit requirements. The equivalent sound level intensity of the cab operation position of the material excavator in workshop 1 exposed to noise for 8 hours was 83.2-83.9 dB（A）,which met the occupational exposure limit requirements. The equivalent sound level intensity of the other testing positions exposed to noise for 8 hours was greater than 90 dB（A）,exceeding the occupational exposure limit. Conclusion The noise detection rate of a construction waste recycling and reuse project in Jiangyin City exceeded the standard by 85.7%,which belongs to a construction project with serious occupational disease hazards. It is recommended to take effective vibration and noise reduction measures and individual protective measures to protect the occupational health of labors.

Key words: Construction waste recycling, Occupational disease hazards, Vibration and noise reduction measures