Study On Optimal Allocation Of Emergency Resources For Water Multi-Accident Rescue

A large amount of historical data shows that when severe meteorological and hydrological conditions such as strong winds,strong waves,and dense fog occur in a certain area of the sea,there will be a situation of accidents and dangers involving multiple ships in a short period of time,and a multi-point rescue emergency request has been proposed.As dealing with water accidents are time-sensitive,the efficient deployment of emergency resources becomes the key to the success of large rescue operations on water.Therefore,in order to improve the rescue efficiency of the water emergency rescue system,research is carried out to optimize the deployment of emergency rescue resources for multiple major accidents in fixed waters.This study mainly constructs the optimization model of emergency resource allocation for water multi-accident rescue.The specific work mainly includes the following aspects:(1)Define the meaning of accidents and dangers on the water,and use this as a theoretical basis to define the multi-point accidents on the water;combine rescue materials and action response procedures and emergency resource guarantee model for water multi-point accident rescue,establish a three-layer water multi-point accident rescue emergency resource coordination network for accident layer,material build-up layer,and the material supply layer.(2)Analyze the characteristics of urgency,stage,multiple constraints,and uncertainty of emergency resource deployment at multiple accident points on the water,summarizes the total time that should be allocated in the process of emergency resource allocation for multi-point accidents on water,the total cost and the unsatisfied amount of accident points are the targets,and the deployment principles are rapid response,mutual coordination and collaboration.The influencing factors of water ondeployment are analyzed in four aspects: types of accidents on water,weather and sea conditions,supply capacity and means of transportation.(3)Aiming at the problem that when multiple accidents occur,the types of accidents at each accident point may be different,and the order of requirements for the types of rescue resources is different,the scheduling priority of each accident site for each material was taken as a prerequisite,and a material distribution model from rescue base to accident site was built,and material distribution was studied.The shortest time issue,at the cost of ensuring the sustainability of the supplementary supplies of rescue bases,establishes a land-based material distribution model to study the problem of minimum transportation cost consumption,and after using the triangular fuzzy number to process the demand of rescue emergency supplies,the genetic algorithm is designed to get the approximate optimal solution.(4)Based on the drift trajectory theory,a dynamic target emergency resource allocation optimization method for multi-point accidents on water is proposed,a genetic algorithm is designed to solve the problem,and the approximate optimal distribution plan of relief supplies is obtained.This study comprehensively considers a series of complex constraints such as the restriction of dispatch priority and the coupling relationship between the coordination of water and land material transportation,and in order to coordinate and optimize the deployment of water emergency resources and land supply emergency resources,constructed a two-stage rescue emergency resource dynamic allocation optimization model.It aims to provide direction for the construction of emergency resource allocation capacity for multiple accident points on the water,and to provide reference for the research on emergency resource allocation for water rescue.