Production Rate Regression Model of Railway Construction Project based on Grid

摘要

Project schedule has been regarded as the core work of the project management. Scheduling and using the project schedule scientifically and reasonably is the key to ensure the organization work of construction project orderly. In this paper, the time-location-based division method of influencing factors has been developed according to their time-spatial varying features. The paper has collected the actual construction progress data and taken use of multiple linear regression analysis determining the incidence relation between the production rates and influence factors. Then the regression model with varying production rates based on grids could be developed. Finally, the practical schedule data of railway Wu Caiwan-Jiang Junmiao sectional subgrade engineering has been utilized to verify the validity of the model.