摘要
Abstract
The height of the switch rail is an important parameter which will produce influences on the track structure vibration and deformation, on train's operation safety and stability, and on the workload of track maintenance. Thus, the measuring basis is the key to measure the correct height of the switch rail. Aiming at the 1st measuring basis and the 2nd measuring basis which are all used for height measurement of the switch rail at present, and supposing that the wheel and the steel rail are all rigid, this paper adopts two kinds of evaluation indexes, including the height difference between the switch rails, and the vertical displacement of the locomotive and vehicle which is obtained by calculation based on wheel-rail contacting relationship. And then each measuring basis for measuring the height of the switch rail is discussed respectively in this paper. The results indicate that it is more reasonable to use the 1st measuring basis when measuring the height of the switch rail.关键词
铁路道岔/尖轨轨高/测量基准/评价指标Key words
railway turnout/ height of switch rail/ measuring basis/ evaluation index分类
交通工程
