Analysis of Construction Technology of Railway Subgrade and the Occupational Hazards
To investigate the construction technology of railway subgrade and the occupational hazards in the process of construction,analyze the degree of harm to workers'health,and put forward suggestions for protective measures.Occupational hygiene investigation and occupational hazards testing in the workplace were carried out on the construction site of railway subgrade.The concentrations or intensities of occupational disease hazards such as manual workers,drillers and blasters at the railway subgrade construction site were exposed to silica dust/other dusts and noise,cement slurry preparation workers were exposed to cement dust,welders were exposed to welding fumes,manganese and its compounds(calculated as MnO2),and concrete workers were exposed to noise and hand-transmitted vibration.It is proposed that by taking comprehensive prevention and control measures such as occupational disease prevention facilities,personal protective equipment,emergency rescue management and daily supervision and management,the occupational disease risks of each post in railway subgrade construction can be controlled and meet the requirements of relevant laws,regulations and standards for occupational disease prevention and control.