Research on Multi-objective Collaborative Optimization of Construction Process of Technical Interfaces in Railway Engineering
In order to solve the problems such as work stoppage and resource conflict caused by the low degree of syner-gy of multi-body,multi-task and multi-processes during the construction of technical interfaces in railway projects,this paper studied the construction processes of railway project technical interfaces from the perspective of multi-objective col-laborative optimization.Firstly,from the perspective of the whole system,the dynamic collaborative management of all aspects,whole process and all elements of each interface task was carried out to realize the collaboration and sharing of distributed resources.Secondly,based on the Pareto optimality principle and NSGA-Ⅱs algorithm,a multi-objective e-quilibrium optimization model of technical interface schedule-robustness-resources was established under uncertain envi-ronment.A series of Pareto optimal solution sets were obtained to realize the coordination and optimization of each objec-tive.Finally,based on the multi-objective optimization analysis of the technical interfaces of the bridge-tunnel connection of a railway section,the optimal solution sets of 23 interface process scheduling schemes were obtained,which were combined with the actual implementation of the interface construction to make optimal decisions on the duration,robust-ness and resource requirements,providing reference for the reasonable arrangement of the process duration and resources of technical interfaces.
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