The Optimization Of Framing Construction Schme Of Da-Cheng Railway Capacity Expansion Engineering

The establishment of practical construction organizational scheme is of great guiding significance for the entire construction process. To optimize the construction scheme scientifically and reasonably has a decisive effect on such aspects as the effective organization of production, productivity improvement and construction period, quality as well as safety assurance.Based on the construction problems of Da-Cheng railway capacity expansion engineering and construction of existing railway, the existing defects in designing construction organization were analyzed. The main direction of optimization construction scheme was forward-looking established. The impact of various constraints in the construction process was comprehensive analyzed, the best construction scheme was proposed.Firstly, the article focused on the discuss how to eliminate the cross-interference between the new line and the existing lines, how to solute the matching relationship between framing base and transport organizations as well as the main line reasonably, how to reform the stations at the right moment, and how to coordinate the relationship between the main line station to reform and the interval framing constrution. The major construction model by strengthening the base construction, a reasonable arrangement to reform stations and using large mechanized production was put forward.Secondly, the main construction technology detail about the affect the optimization of prestressed concrete implementation plan T-rail bridge precast concrete, tools laying track arrangement, the construction of bridges, bridge landscape connectivity for shop long rail, rail and turnout welding was descriped. And the scheme which could meet the workforce optimization and mechanical configuration was proposed.Thirdly, by comparison, the optimized construction schme was verified, the effective guidelines and concrete construction methods in the reconstruction of existing railway construction were summarized. View to gain experience for the future reconstruction of existing railway, enhance the organizational capacity of the existing construction line.Key words:Reconstruction Of Existing Railway;Optimization Construction Scheme;Construction Technology...