Tunnel Ventilation and Environmental Assurance in Complex Conditions

Dear Colleagues,

Tunnel disaster and environmental assurance are key constraints on the construction of large tunnels, especially ventilation strategies. Tunnel ventilation is mainly divided into construction ventilation, operational ventilation and fire ventilation. In some complex conditions, such as high ground temperatures or cold tunnels, it is a great challenge to ensure that the tunnel environment is suitable for normal operation. The energy consumption for ventilation of long tunnels is enormous and the designed ventilation capacity is much more than the tunnel needs. As a result, there is a serious waste of electrical resources in tunnel ventilation. As a result, the current tunnelling community has shown an unprecedented demand for more energy-efficient tunnel ventilation and environmental assurance technologies. To promote the development of tunnel ventilation and environmental assurance technologies, this special issue is dedicated to presenting energy-efficient tunnel ventilation, environmental control, disaster prevention and environmental assurance cases of complex and typical tunnelling projects, including, but not limited to, the following wide-ranging topics:

• Construction ventilation for extra long tunnels
• Mechanisms of pollutant transport in tunnels
• Theory of tunnel operation ventilation calculations
• Operation ventilation for complex tunnels
• New ventilation design method for complex tunnels
• Energy saving in tunnel ventilation
• Environmental assurance for construction and operation of high ground temperature tunnels
• Anti-freezing technology for tunnels in cold areas
• Tunnel fire and environmental control
• Prevention and control cases of thermal (freezing) damage in major tunnel projects

Prof. Dr. Yanhua Zeng
Dr. Xuepeng Jiang
Dr. Xiaohan Zhou
Prof. Dr. Yaqiong Wang
Guest Editors

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• tunnel engineering
• tunnel fire environment
• operation ventilation
• construction environment
• thermal damage
• tunnel anti-freeze
• ventilation energy