高速铁路无砟轨道线路管理单元划分方法研究

Research on Division Method of Management Unit for High Speed Railway Ballastless Track

线路单元管理具有便于现场管理、易于针对性养修、可减少养修资源浪费等诸多优点,但是现有的管理单元划分基本上还是沿用既有线的方法,未充分考虑线路结构、设计参数等不同带来的差异,以及后期运营导致的部分区段恶化严重的影响,不利于高速铁路无砟轨道线路实际状态的掌握和有效养修。提出了一种考虑线路参数、结构特征、线路状态、养修能力、作业手段等因素的不等长单元区段划分方法,并确定了单元区段划分的原则和优先级,采用两阶段法实现单元区段自动划分,在划分的第二阶段建立了单元区段选择模型,实现了结合线路状态、考虑养修能力的动态划分。该方法更加符合线路的实际特征,能够突出线路薄弱环节。

Track unit management has such advantages as convenience in field management, easy access to targeted maintenance, and tendency to reduce resources waste, etc. But the present management unit division is using methods of existing railways, not taking the differences of track structure, design parameters and the influence of deterioration caused by operation into consideration, which may not help the control of actual state and effective maintenance of high speed railway ballastless track. This study put forward an unequal length unit section division method, taking line parameters, structural characteristics, track condition, maintenance ability, operation method into account. Division principle and priority were determined, and two-phase method was adopted to realize the automatic division. In the second phase, a unit section model in light of track condition and maintenance ability was established. This proposed method is found to conform to actual track characteristics and highlight track weaknesses.