Analysis of the Impact of Construction Organization Design on Investment Control of High-speed Railway Large Span Bridges
The Guangzhou-Zhanjiang High-speed Railway is an important part of the national"Eight Vertical and Eight Horizontal"high-speed railway network and the 350 km/h coastal railway passenger main channel.It is designed for a speed of 350 km/h,using the ballastless track,with a main line length of 400.1 km and a bridge-tunnel ratio of 78.1%,and large-span bridges have a decisive impact on the construction of the entire route.In order to study the impact of different construction organization plans on the cost of the project,this paper conducted an in-depth analysis of the key difficulties in the construction organization of Foshan Bridge across the Xijiang River main bridge in the Guangzhou-zhanjiang High-speed Railway.By comparing the differences in quotas and costs,the paper discussed the relationship between construction organization design and investment control,and clarified the impact of changes in construction auxiliary measures caused by different construction plans on project costs and investment control.By comparing the differences in quotas and costs,the paper discussed the relationship between construction organization design and investment control.The results show that different construction organization designs have a significant impact on the investment of high-speed railway large-span rigid-frame bridges.Strengthening field surveys and the comparative selection of construction organization plans are essential prerequisites for controlling project investment.In terms of this project,there is a difference of 6.83 million yuan in investment between the two different construction organizations.Therefore,the construction unit should communicate and coordinate with all relevant parties,adopt strategies such as refined construction organization design,risk assessment and management,change management,real-time monitoring and adjustment,for achieving good investment control effects.
high-speed railwaylong span rigid frame bridgeconstruction organizationconstruction costinvestment control
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