Abstract:

In order to effectively improve the individual working environment and reduce the individual operating temperature and contact noise in shield tunnel, by using the methods of investigation, system summary, software modeling and so on, based on the analysis of the influence of high temperature and noise in tunnel on the physical and mental health of workers, the individual cooling and noise control equipment is designed and studied from the aspects of equipment design basis, necessary main functions, key technical parameters, design scheme comparison, overall scheme design, working principle and so on, and an individual protective equipment of working environment in shield tunnel is developed. The equipment consists of special protective clothing, lightweight positioning communication refrigerator, noise reduction headphones, small portable power supply, etc. It innovatively combines the functions of cooling, noise prevention, communication and positioning and realize the diversification and practical application of individual protective equipment functions, which is especially suitable for the shield tunnels with fewer workers and low dust content.

Key words: shield tunnel, working environment, individual cooling and noise prevention equipment, active noise reduction, positioning communication, semiconductor refrigeration