Research On Construction Method Of Shallow Buriedcovered Metro Of Large Span

This thesis takes Qingdao subway tanzan station as the engineering background, according to the characteristics of large span, complex stress, construction method, construction difficulty and complicated high, and through theoretical analysis and field test researched on the construction method of large span subway station of rock.Through the research of the construction of large span tunnel, this paper introduced the present situation of the domestic and international research on the large span subway station, and summarized the characteristics of the settlement law of the underground excavation. The finite element software was used to establish the three-dimensional model of the large span subway station. The whole construction process is simulated. The characteristics of the strata subsidence law, supporting displacement and stress were studied. The reinforcement of the supporting structure was calculated, the results meet the requirements of the specification, which provides a safety guarantee for the structural safety. This paper introduced the construction method of the main structure, the design of drilling and blasting and introduces the design and construction of similar projects.