Discussion on civil ducts used in smoke management system of hydropower projects

There are huge space and large air duct section in hydropower projects. It is customary to use civil ducts. However, Technical standard for smoke management systems in buildings stipulates that civil ducts shall not be used for smoke control and smoke exhaust system. This paper discusses the characteristics of different civil ducts from the aspects of classification, structural form and construction method of civil ducts in hydropower projects, so as to provide references for the use of civil ducts in engineering design.