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通过对全路在役钢轨的使用状况和伤损情况进行调查研究,提出了钢轨伤损加权统计方法,对取得的数据进行统计分析,给出我国线路上在役U71Mn钢轨和U75V热轧钢轨伤损量与累计通过总重对比关系及加权统计基础数据;将工程经济学原理应用于钢轨使用的经济分析,获得钢轨的最佳经济下道时机;在统计分析我国钢轨伤损类型和原因的基础上,提出确定钢轨大修周期的原则,参考国内外钢轨大修周期取得的研究成果,提出了累计通过总重与钢轨伤损量相结合的大修周期模式及其指标。
Through the investigation and study of the service conditions and injuries of the existing serviceable steel rails in the whole railway, a weighted statistical method of rail injury is proposed. The statistical analysis of the obtained data is given. The U71Mn rails and U75V hot-rolled rail rails Loss and accumulated through the total weight comparison and the weighted statistical basis of data; the principles of engineering economics applied to the use of rail economic analysis, access to rail the best economic timing opportunities; statistical analysis of China rail injury types and causes of the foundation , The author puts forward the principle of determining the overhaul cycle of the rail and refers to the research results obtained during the rail overhaul cycle both at home and abroad and puts forward the overhaul cycle model and its indexes which are combined through the total weight and the rail damage.