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通过对既有线现有曲线进行分析,按照GJ-4型轨道检查车对曲率变化率的检查原理,计算出选定曲线一定长度的结构曲率变化率,比照《轨道动态管理暂行试验标准》中规定的超限值,揭示目前线上动态管理中曲率变化率超限分大量存在的原因和处理建议。
Through the analysis of the existing curves of existing lines, the rate of change of the curvature of the structure for a certain length of the selected curve is calculated according to the principle of checking the rate of change of curvature of the car by the GJ-4 type orbital inspection vehicle, as specified in the Interim Trial on Dynamic Management of Railways , Revealing the reasons and handling suggestions of the large limit of curvature rate of change in online dynamic management.