Health Damage Assessment about Construction Noise of Tunnel Adopting Drilling and Blasting Method

A lot of noise pollution will be produced in the process of tunnel construction, which will seriously damage the workers’ health. In order to reveal the health damage characteristics caused by tunnel construction noise and improve workers’ occupational health level, this paper established an assessment system of health damage caused by tunnel construction adopting Drilling and Blasting Method, including standardization of noise exposure, characterization of health risk and quantification of health damage. During the 5-year tunnel construction, the total DALY of all workers is 4.256 a, and the total damage of drilling is the largest (DALY=1.743 a), followed by shotcrete (DALY=0.646 a), while the pouring lining (PL) is zero due to the slight noise exposure. In addition, except for pouring lining (PL), the per capita damage of shotcrete is the largest (DALY=0.131 a), personal protection needs to be strengthened, and the assembling reinforcement (AR) is the smallest (DALY=0.032 a). This study applied the occupational noise exposure assessment to tunnel engineering for the first time, providing a reference for workers to protect against noise pollution.