Stable research on formwork supports system of top arch structure in subway stations

Taking (22)～(42) axial structure of the main body for the Xiangjiang north road of 15th line of Beijing subway as an example,the paper explores the design for the formwork supports system of the top arch in long-span structure,calculates the stability of the formwork supports system of top sheet in the cast-in-place long-span structure,and concludes the formwork support system of the project can meet the safety demand.