Research On Dynamic Construction Site Layout Planning Of Subway Station Based On BIM And Genetic Algorithm

With the acceleration of urbanization in China,the demand for subway construction is increasing.Most of the subway stations are located in the bustling urban areas.The construction site is narrow and there are many hidden dangers on the site.The construction site layout planning has an important impact on the process of construction.However,the work of subway station construction site layout relies too much on experiences at present,resulting in waste of construction resources and increased safety hazards.This thesis takes the open-cut underground station as the research object,and proposes the dynamic construction site layout planning of the subway station based on BIM and genetic algorithm,and provides a systematic and scientific method for the construction site layout planning of subway station.This thesis firstly analyzes the relevant theories of construction site layout planning of subway station,and selects the optimization method.The dynamic construction site layout model of subway station is built based on BIM technology,and the material consumption is analyzed to determine the type and size of temporary facilities at each stage.Taking the location of the facility as the decision variable,the objective function is established with the minimum cost of construction site resource flow and the minimum level of safety risk as the optimization goal.The genetic algorithm is used to solve the optimization scheme of site layout,and is heuristically improved,making it more suitable for construction site layout.On this basis,the construction site layout system is developed to realize the two functions including material consumption query and facility location optimization layout,so as to assist the site management personnel with the work of construction site layout planning.Finally,the HD station is selected as an empirical case.The dynamic construction site layout model and system of the subway station are used to obtain the site layout optimization scheme of each construction stage,and the comparison with the original scheme verifies the feasibility and practical value of the research.Figure 66,table 11,113 references...