Research On Node Layout Of Construction Waste Recycling Network Of L Company

With the gradual acceleration of urbanization and increasingly frequent construction activities,new construction and demolition construction are bound to produce a large number of construction wastes.It has not only seriously damaged the ecological environment,but also brought hidden danger to people’s production and life.Therefore,it is inevitable that a large number of reverse logistics networks of construction waste need to be planned throughout the country,in which the selection of each node is crucial.If construction waste is to be managed scientifically,it is important to focus on the transfer and terminal processing of construction waste,which will also be directly related to the operational efficiency of the recycling network system.Among these links,the sorting of waste transfer stations and resource processing plants is also very important,because if the wrong address is chosen,the cost of transporting and disposing of construction waste can increase significantly,thus affecting the city’s amenities.This paper,beginning with a summary of the pertinent research literature both domestically and internationally,delves into the background and importance of the research,highlights the inadequacies of the current studies,and proposes the issues to be examined.Theoretically,node layout research of construction waste recycling networks is the focus of secondarily.The construction waste recycling network facilities’ site selection planning model is constructed by combining the latest logistics theory with the characteristics of construction waste sorting,transfer station,and resource treatment plant.A preliminary model for transfer station site selection for the construction waste sorting and transfer chain was developed by combining an aggregate coverage model with a hierarchical analysis method model.The set coverage model is initially employed to preliminarily evaluate the selection of the sorting and transfer station,and then the primary elements influencing the selection of the sorting and transfer station are chosen.A comprehensive evaluation and analysis of the alternative solutions,a scientific and reasonable site selection from many alternative addresses,and verification of the practicability and feasibility of the model through an example are all accomplished by the hierarchical analysis,which determined the weighting of impact factors for each indicator The environmental impact of construction waste is quantified in terms of carbon dioxide emissions during transportation and disposal as a measure of the final treatment process.Based on traditional total cost minimization,a model of construction waste recycling and processing plants,with a minimum total cost and negative social and environmental utility,is constructed using a bi-objective site planning approach,and a multi-objective genetic optimization algorithm has been tailored to the model characteristics is designed.The feasibility of the siting model and the correctness of the algorithm were illustrated by examples.This article proposes a scientific and effective decision-making method for solving the location planning problem of logistics network nodes in L company,which greatly improves sorting efficiency for L company and effectively solves the practical problem of high costs caused by unscientific location selection,providing reliable guarantee for L company’s waste resource utilization business process.Construction waste can be converted into renewable building materials through resource utilization technology and transported to the secondary market at the end of the resource utilization network system,achieving sustainable development of circular economy.The greatest significance of this study lies in the fact that the constructed model can solve practical problems,provide specific suggestions for the location selection of L Company’s sorting center and resource processing plant,and solve practical problems.