基于轨道几何状态的大机作业决策方法

Tamping and Grinding Operation Planning Model Considering Track State

摘要:

大型养路机械作业主要包括捣固作业和打磨作业，是维持线路良好几何状态的重要作业方式。为了制定合理的捣固与打磨作业计划，保障线路能够安全运营，以年度几何不平顺平均值最优为目标，现场作业能力为约束，建立了年度捣固与打磨作业计划编制模型，并且运用改进的枚举法对模型进行求解。该模型被应用于京沪铁路进行验证，结果表明：该模型建立的大机作业计划能够提高轨道几何状态的改善率，降低年度几何不平顺平均值，为现场捣固和打磨作业的计划编制提供参考。

Abstract:

The operation of large track maintenance machinery mainly includes tamping operation and grinding operation， which is an important operation mode to maintain the good geometric state of the line. In order to formulate a reasonable tamping and grinding operation plan and ensure the safe operation of the line， the annual tamping and grinding operation plan preparation model is developed to optimize the average annual geometric irregularity and the field operation capacity as constraints， and the improved enumeration method is used to solve the model. The model has been applied to the Beijing-Shanghai Railway for verification. The results show that the operation plan of large track maintenance machinery developed by the model can improve the improvement rate of track geometric state， reduce the average value of annual geometric irregularities， and provide a reference for the planning of on-site tamping and grinding operations.