Research On Comprehensive Evaluation Of Railway Engineering Technical Interface Conflict Threat

The integration of railway engineering construction is a process involving the interaction and matching of different subsystems.During the entire process of construction,different disciplines need to cooperate with each other.Different disciplines,different engineering entities,and different functional requirements will generate different boundaries,and different boundary interaction conditions correspond to different technical interfaces.Information interaction between interface participants has become the primary condition for interface implementation,but in the actual implementation process,error information inevitably occurs in the upstream and downstream information interaction of the interface.Both parties of the interface disagree on the current properties and processing scheme of the interface,resulting in the interface implementation being suspended.Therefore,technical interface conflicts have become an inevitable interface implementation state during the entire process of railway construction,and have also become key and weak points in interface management.At present,scholars at home and abroad have made certain research achievements on the theory and methods of interface management,but the research on prediction models for the degree of conflict threat in railway engineering and technical interfaces is rarely involved.On the basis of existing research,this paper proposes a relatively complete and versatile methodology for comprehensive evaluation in railway engineering technical interfaces,including railway engineering system division,conflict theory analysis,analysis of technical interface conflict drivers,comprehensive evaluation model for technical interface conflict threats,and engineering case validation analysis,It provides a certain reference value for railway engineering interface conflict threat assessment and key interface management.Firstly,it introduces the division principles,specific subsystem composition,and interface identification methods of railway engineering subsystems,defines the concepts and types of interfaces,analyzes the different types of interface conflicts in detail,and clarifies that the engineering project interface conflicts studied in this paper are mainly analyzed from the organizational level.On this basis,it analyzes the organizational factors,project factors The driving factors that may lead to technical interface conflicts are analyzed in detail from four aspects: partnership factors and external environmental factors.Then,based on the driving factors of interface conflict and the organizational level of the interface,a comprehensive evaluation and research index system for railway engineering and technical interface conflict threats is constructed,which consists of 5 first level indicators and27 second level indicators.The weighting model constructed using the intuitive fuzzy analytic hierarchy process(IFAHP)is used to comprehensively consider the role of membership,non membership,and hesitation in the weighting process,Avoiding secondary scoring during the indicator weighting process automatically reduces the subjective differences in the perception of qualitative concepts among different evaluation subjects.Secondly,a Bayesian dynamic feedback correction cloud model is constructed for comprehensive evaluation of technical interface conflict threats.This model establishes a cloud model based on initial digital eigenvalues,and performs Bayesian dynamic feedback correction on the cloud model based on distance measures until the number of cloud droplets falling into the rejection domain meets the threshold requirements,making the final evaluation result closer to the objective and realistic level,providing a basis for subsequent interface management.Finally,the bridge tunnel technical interface between the Gongduoding Tunnel of the Lalin Railway and the double track bridge and tunnel of the Penzhong Station was selected as the research object to conduct a comprehensive evaluation study on the interface conflict threat.The results showed that the factors with the highest degree of conflict threat to the bridge tunnel technical interface came from the survey and design party,and more attention should be paid to the specific interface implementation and management process,as well as to the organization party ranking first,Focused and targeted efforts should be made to reduce the conflict state in the upstream and downstream information transmission process of the interface,and achieve the engineering,quality,and cost objectives of railway engineering project construction to the maximum extent.