Discussion on Construction Scheme of Main Structure of Air Shaft in West Bank of Fuling Section of Changsha Rail Transit Line 3
The West Bank air shaft mileage is YDK15+064.850~TDK15+081.250,located in the east of the intersection of Xiaoxiang Middle Road and Tianma Road. The interval air shaft is a five-storey underground double-frame structure with a total length of 16.4 m,a width of 23.8m and a depth of 43.7m.It is difficult to construct and has many key problems. This paper discussed the construction scheme of main structure from the aspects of engineering geology,hydrogeology,surrounding environment and underground pipeline,and put forward feasible control measures. The research results not only provide technical guidance for the main structure construction scheme,but also provide technical reference for similar projects.
Air shaftDouble frame structureConstruction scheme