Research On Extension Evalution For Scheme Of Introducing Passenger Dedicated Line Into Railway Terminal

The Construction projects of introducing passenger dedicated line into railway terminal are a very important ring of passenger dedicated line network, thereby, it is of practical significance to raise the scientific scheme selection.At present, many scheme selections are just adapted from practical experience of engineers from railway design departments, such as "in large railway terminal station prior to route, or route prior to station". On the other hand, theoretical research mainly concentrated on various comprehensive evaluation methods to study scheme or railway station position selection and do a single cycle decision on the limitations of practical experience and irrelevancy in use of methods, which restrict the scientific of scheme selection.This paper proposes that scheme selection of introducing passenger dedicated line into railway terminal is a large scale decision problem characterized by contradiction, complexity and irreversibility. Based on that, this thesis puts forward a systematic solution:(1) Refer to the theory of extension building matter-element model to analysis the contradiction of scheme selection.(2) Utilize implication system analytic principle of extensive method decompose the complex factors, and build the element implication system of the goal matter-element.(3) Utilize the multilevel rhombus thought models of extension thinking modes, get ready to multiple divergence-Convergence in the process of scheme selection in order to get satisfactory solution, and reduce the risk of decision-making misplay.(4) Utilize level-correlation degree method and superiority evaluation method to evaluate the scheme convergence in phase of the multilevel rhombus thought models, in order to determine the satisfactory scheme.According to this solution, combine with Xiamen-Shenzhen passenger dedicated line introduced into Shenzhen railway terminal engineering application, aim at three scheme of candidate Scheme sets, defining the classical field and controlled field which express the level, utilize level-correlation degree method to evaluate the scheme level in every dimension, and utilize superiority evaluation method to evaluate them. For the sake of verifying the scientific of solution, use conclusions to compare with the conclusions of AHP comprehensive evaluation method and the engineering application of railway design department. All of them have preferable consilience, with important theory value and of practical significance。...