The Study Of Construction Site Layout Planning Based On GA And Fuzzy Decision-making

As the basis of the project site management,the layout of the construction site had great significance for the project construction.Scientific and reasonable site layout can improve progress,reduce security risk and construction cost.These can promote the realization of construction project goals.In the actual project,the final plan is often determined by personal experience and subjective preferences of the project managers,which often causes a variety of problems due to uncertain factors.As the continuous deepening of the concept of standardization in the construction of engineering,a scientific and reasonable method is needed to arrange the construction site.The essence of the construction site layout problem is first analyzed.The layout of the construction site is a systematic decision process,which mainly includes two stages of planning design and planning evaluation.The planning design of the construction site is a Quadratic Assignment Problem,and the planning evaluation is a fuzzy decision-making problem.On the basis of the related theory of construction site layout,the cost goal is used as the objective function.Then,the genetic algorithm is used to solve the design model problem and several construction site layout plans can be obtained.Then the fuzzy idea is introduced,the triangular fuzzy numbers are used to represent the evaluation index and weight of the scheme,and multiple plans are comprehensively evaluated to select the best plan.Finally,the practical case is combined to reflect the applicability of layout design model and fuzzy decision model.The method of combining quantitative and qualitative research is adopted to get the scientific and rational layout of the construction site which is often influenced by many factors.The genetic algorithm is used to solve the design problem of the construction site layout objectively and scientifically.The fuzzy idea is used to overcome the uncertainty of the subjective factors and the optimal layout planning is rationally evaluated and selected.